chore(release): load Campaign 0.1.21

chore(webui): load Campaign collaboration release
chore(webui): load Files folder sync release
2026-08-22 00:54:00 +02:00 · 2026-08-22 00:18:06 +02:00 · 2026-08-21 22:50:48 +02:00 · 2026-08-21 22:06:29 +02:00 · 2026-08-21 21:15:31 +02:00 · 2026-08-21 20:31:51 +02:00
239 changed files with 21737 additions and 1223 deletions
@@ -149,6 +149,8 @@ webui/.module-test-build/
 webui/.policy-test-build/
 webui/.template-preview-test-build/
 webui/.import-test-build/
+webui/dist-conformance/
+webui/test-results/

 # Security audit reports
 audit-reports/
@@ -0,0 +1,23 @@
+from __future__ import annotations
+
+from importlib.util import module_from_spec, spec_from_file_location
+from pathlib import Path
+
+
+_path = (
+    Path(__file__).resolve().parents[1]
+    / "versions"
+    / "a36d8e4f9b12_german_reference_locale.py"
+)
+_spec = spec_from_file_location("govoplan_german_reference_locale_migration", _path)
+if _spec is None or _spec.loader is None:
+    raise RuntimeError(f"Unable to load migration implementation from {_path}")
+_module = module_from_spec(_spec)
+_spec.loader.exec_module(_module)
+
+revision = _module.revision
+down_revision = _module.down_revision
+branch_labels = _module.branch_labels
+depends_on = _module.depends_on
+upgrade = _module.upgrade
+downgrade = _module.downgrade
@@ -0,0 +1,23 @@
+from __future__ import annotations
+
+from importlib.util import module_from_spec, spec_from_file_location
+from pathlib import Path
+
+
+_path = (
+    Path(__file__).resolve().parents[1]
+    / "versions"
+    / "b47e6f809a13_data_subject_requests.py"
+)
+_spec = spec_from_file_location("govoplan_data_subject_requests_migration", _path)
+if _spec is None or _spec.loader is None:
+    raise RuntimeError(f"Unable to load migration implementation from {_path}")
+_module = module_from_spec(_spec)
+_spec.loader.exec_module(_module)
+
+revision = _module.revision
+down_revision = _module.down_revision
+branch_labels = _module.branch_labels
+depends_on = _module.depends_on
+upgrade = _module.upgrade
+downgrade = _module.downgrade
@@ -0,0 +1,44 @@
+"""adopt German as the untouched system reference locale
+
+Revision ID: a36d8e4f9b12
+Revises: f25c9d3e7a01
+Create Date: 2026-08-05 00:00:00.000000
+"""
+
+from __future__ import annotations
+
+from alembic import op
+import sqlalchemy as sa
+
+
+revision = "a36d8e4f9b12"
+down_revision = "f25c9d3e7a01"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    bind = op.get_bind()
+    if "core_system_settings" not in set(sa.inspect(bind).get_table_names()):
+        return
+
+    settings = sa.table(
+        "core_system_settings",
+        sa.column("id", sa.String),
+        sa.column("default_locale", sa.String),
+        sa.column("created_at", sa.DateTime(timezone=True)),
+        sa.column("updated_at", sa.DateTime(timezone=True)),
+    )
+    bind.execute(
+        settings.update()
+        .where(settings.c.id == "global")
+        .where(settings.c.default_locale == "en")
+        .where(settings.c.created_at == settings.c.updated_at)
+        .values(default_locale="de", updated_at=sa.func.now())
+    )
+
+
+def downgrade() -> None:
+    # Locale selection is user-visible state. A downgrade must not overwrite a
+    # German value that may have been selected explicitly after this migration.
+    pass
@@ -0,0 +1,77 @@
+"""add governed data-subject request workflow
+
+Revision ID: b47e6f809a13
+Revises: a36d8e4f9b12
+Create Date: 2026-08-07 00:00:00.000000
+"""
+
+from __future__ import annotations
+
+from alembic import op
+import sqlalchemy as sa
+
+
+revision = "b47e6f809a13"
+down_revision = "a36d8e4f9b12"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    inspector = sa.inspect(op.get_bind())
+    if "core_data_subject_requests" in inspector.get_table_names():
+        return
+    op.create_table(
+        "core_data_subject_requests",
+        sa.Column("id", sa.String(length=36), nullable=False),
+        sa.Column("tenant_id", sa.String(length=36), nullable=False),
+        sa.Column("reference", sa.String(length=120), nullable=False),
+        sa.Column("request_kind", sa.String(length=30), nullable=False),
+        sa.Column("status", sa.String(length=30), nullable=False),
+        sa.Column("subject", sa.JSON(), nullable=False),
+        sa.Column("purpose", sa.String(length=1000), nullable=False),
+        sa.Column("legal_basis", sa.String(length=1000), nullable=True),
+        sa.Column("due_at", sa.DateTime(timezone=True), nullable=True),
+        sa.Column("requested_by_account_id", sa.String(length=36), nullable=False),
+        sa.Column("search_result", sa.JSON(), nullable=False),
+        sa.Column("erasure_plan", sa.JSON(), nullable=False),
+        sa.Column("execution_result", sa.JSON(), nullable=False),
+        sa.Column("coverage", sa.JSON(), nullable=False),
+        sa.Column("evidence_sha256", sa.String(length=64), nullable=True),
+        sa.Column("resource_revision", sa.Integer(), nullable=False),
+        sa.Column("completed_at", sa.DateTime(timezone=True), nullable=True),
+        sa.Column("notes", sa.Text(), nullable=True),
+        sa.Column("created_at", sa.DateTime(timezone=True), nullable=False),
+        sa.Column("updated_at", sa.DateTime(timezone=True), nullable=False),
+        sa.PrimaryKeyConstraint("id", name=op.f("pk_core_data_subject_requests")),
+    )
+    op.create_index(
+        op.f("ix_core_data_subject_requests_tenant_id"),
+        "core_data_subject_requests",
+        ["tenant_id"],
+        unique=False,
+    )
+    op.create_index(
+        op.f("ix_core_data_subject_requests_status"),
+        "core_data_subject_requests",
+        ["status"],
+        unique=False,
+    )
+    op.create_index(
+        op.f("ix_core_data_subject_requests_due_at"),
+        "core_data_subject_requests",
+        ["due_at"],
+        unique=False,
+    )
+    op.create_index(
+        "ix_core_data_subject_requests_tenant_status",
+        "core_data_subject_requests",
+        ["tenant_id", "status"],
+        unique=False,
+    )
+
+
+def downgrade() -> None:
+    inspector = sa.inspect(op.get_bind())
+    if "core_data_subject_requests" in inspector.get_table_names():
+        op.drop_table("core_data_subject_requests")
@@ -159,7 +159,36 @@ The initial implementation includes provider-neutral orchestration helpers:

 The first concrete provider is `govoplan_access.backend.configuration_provider`.
 It supports access-owned `roles`, `groups`, and `group_role_assignments`
-fragments and applies them idempotently.
+fragments and applies them idempotently. Mail and Files also register providers
+for deployment configuration: Mail owns receipt-bound SMTP profiles and Files
+validates the deployment-owned managed-storage binding.
+
+### Deployment capability receipt
+
+The installer mounts a bounded, non-secret infrastructure receipt at the path
+named by `GOVOPLAN_DEPLOYMENT_CAPABILITIES_PATH`. Core validates that document
+once for configuration-package context and exposes typed capability and
+post-install-task records to providers. Invalid receipts fail closed. Endpoint
+metadata is sanitized, and secret fields may cross this boundary only as
+`env:VARIABLE_NAME` references.
+
+Feature providers remain responsible for their own semantics:
+
+- Mail can derive host and port from `mail.smtp`, collect missing non-secret
+  transport fields, and bind an existing credential-envelope id. It never
+  accepts or exports a username, password, token, or decrypted credential.
+- Files compares `files.storage` with the effective runtime backend, endpoint,
+  trust marker, bucket, and presence of referenced environment secrets. Storage
+  remains deployment-owned, so the provider reports `skip` when they agree and
+  blocks drift instead of rewriting process environment or storage credentials.
+- A system-scoped Mail profile requires system configuration authority. Tenant
+  scope is the conservative default.
+- Existing Mail configuration is preserved unless a reviewed fragment
+  explicitly selects `on_conflict: update`. Reapplying an unchanged fragment is
+  a no-op.
+
+Ops projects the same Core-validated receipt. It must not maintain a second
+parser with different validation or secret-handling rules.

 The admin wizard backend starts with these routes:

@@ -0,0 +1,73 @@
+# Contextual Help Contract
+
+GovOPlaN exposes context-sensitive help through `F1` and the titlebar help
+control. The shell resolves a stable help identity from the focused control,
+its containing surface, and the current route. The Docs module then projects
+the best visible user or administrator topic for that identity.
+
+## Resolution Order
+
+The WebUI resolves help in this order:
+
+1. an explicit `helpContextId` or `data-help-context-id` on the focused item
+2. the focused shared control's `interfaceId`, `helpTopicId`, and label key
+3. a containing dialog, card, administration section, or page surface
+4. the current registered route, including dynamic module routes
+5. a stable route-derived fallback when no explicit identity is available
+
+Focused field and action contexts retain the page context as
+`fallback_context`. This lets Docs show a field-specific topic when one exists
+and otherwise open the owning page or module documentation instead of a generic
+help page.
+
+## Documentation Lookup
+
+Static `DocumentationTopic` contributions announce exact contexts through
+`metadata.help_contexts`. Core publishes that catalogue with the enabled module
+manifest, allowing the shell to link directly to an exact topic when possible.
+Docs still performs the authoritative audience, permission, configured-state,
+and documentation-type filtering.
+
+Core also maps explicit route, navigation, settings, and View surface IDs to
+the module's static user or administrator documentation baseline. This makes a
+page association complete by default and gives every derived field/action
+context a useful fallback. Exact `metadata.help_contexts` remain the preferred
+authoring mechanism for consequential or unfamiliar controls.
+
+When there is no exact topic, Docs resolves the page fallback and then the first
+visible topic owned by the module. If Docs is unavailable, the shell opens the
+hosted documentation with the same context parameters.
+
+## Authoring Controls
+
+Core shared controls expose stable help metadata. Prefer these props rather
+than adding custom `F1` listeners:
+
+- `interfaceId` identifies a durable UI surface or action.
+- `helpContextId` identifies a documentation context when it differs from the
+  interface identity.
+- `helpModuleId` identifies the documentation-owning module when a shared
+  control is embedded in another module's page.
+- `helpTopicId` links directly to a module-owned documentation topic.
+- translated label keys provide deterministic field identities for ordinary
+  `FormField`, `ToggleSwitch`, search, date/time, email, button, dialog, and card
+  controls.
+- `TableActionGroup` action definitions carry the same identities so focused
+  row actions can resolve consequence-specific help.
+- `PageLayout` owns the page help scope and documentation identity for ordinary
+  headed pages. `WorkspaceLayout` owns the full-canvas workspace scope and its
+  labelled primary/content panes; pages inside it use `PageLayout` in
+  `workspace` mode and retain their own route-level help identity.
+
+Module routes, public routes, settings sections, and administration sections
+may also declare `helpContextId` and `helpTopicId`. Each module must keep a
+static user/admin documentation baseline and should list its important route,
+workflow, setting, permission, and limitation identities in
+`metadata.help_contexts`.
+
+## Boundary
+
+Help identities describe presentation context; they are not authorization
+claims. Opening help never bypasses route or documentation permissions. Docs
+owns documentation projection, feature modules own their content, and Core owns
+focus capture, context resolution, and fallback routing.
@@ -36,7 +36,8 @@ the column remains stopped until the pointer crosses the same boundary again.

 ## Persistence

-Only the pixel layout resulting from an explicit user resize is persisted.
+Only the pixel layout resulting from an explicit user resize is persisted,
+together with the container width at which the user selected it.
 Persisted widths are keyed by a signature containing column IDs, declared
 widths and bounds, resize affordances, sticky placement, initial fit, and resize
 behavior. A changed signature discards the old override and recomputes the
@@ -44,8 +45,13 @@ declared layout.

 Container reconciliation is suspended while a pointer drag is active. On
 release, the already-rendered pixel layout becomes the persisted preference.
-Reconciliation may grow it to prevent underflow, but never shrinks intentional
-user overflow, so there is no drag-end snap.
+Reconciliation at that same container width never shrinks intentional user
+overflow, so there is no drag-end snap. If the surrounding layout later
+contracts, persisted tracks may shrink toward their hard minima. The layout
+retains only the amount of horizontal overflow deliberately created by the
+user; an exact-cover layout therefore remains exact-cover at narrower widths.
+Legacy snapshots from the former hard-pixel persistence contract are discarded
+once and recomputed from the declared column layout.

 ## Regression Matrix

@@ -56,6 +62,7 @@ user overflow, so there is no drag-end snap.
 - hard-minimum horizontal overflow;
 - fixed-only cover grids;
 - persisted overrides under growth and viewport pressure;
+- responsive contraction of persisted layouts without losing deliberate overflow;
 - stale layout signatures;
 - first and middle-column right-side compensation;
 - last-resizable-column overflow, underflow stop, and reverse-pointer boundary;
@@ -0,0 +1,91 @@
+# Data-Subject Request Contract
+
+This document defines the provider-neutral workflow for access and erasure
+requests. It is an operational control and evidence mechanism. It does not
+replace legal review, identity verification, retention policy, or the
+institution's statutory response process.
+
+## Ownership
+
+Core owns the request aggregate, lifecycle API, optimistic concurrency,
+provider discovery, export manifest, execution orchestration, and audit event
+names. Modules that store subject-related data own their search, explanation,
+retention, and mutation behavior through a `privacy.dsar.<module>` capability.
+Core never scans module tables or guesses how a foreign resource may be
+erased.
+
+Access owns the first provider. It finds tenant memberships plus safe account,
+identity, assignment, API-key, and session metadata. It does not export secret
+hashes, session tokens, IP addresses, or browser fingerprints. Tenant-local
+membership data can be anonymized and authentication material can be revoked.
+Global accounts and identities require manual system-level review because they
+may serve more than one tenant.
+
+## Lifecycle
+
+1. A privacy officer records a verified selector, purpose, legal basis, due
+   date, and internal reference.
+2. Search invokes every available tenant capability independently. A provider
+   failure is isolated and recorded; it cannot turn an incomplete search into
+   a successful one.
+3. The JSON export contains the request, records, provider runs, coverage,
+   retention reasons, execution evidence, and a SHA-256 manifest digest.
+4. An erasure request produces stable provider-owned actions. Immutable
+   evidence generates an explicit non-executable `retain` decision.
+5. Execution accepts only selected executable actions from the current plan.
+   It requires `If-Match`, the current resource revision, the dedicated erase
+   permission, and the exact `ERASE <request-id>` confirmation phrase.
+6. Provider execution is idempotent. Completed or unchanged effects remain
+   durable in the request's execution evidence.
+
+The API is rooted at
+`/api/v1/admin/privacy/data-subject-requests`. Access exposes the independent
+permissions `access:privacy:read`, `access:privacy:manage`,
+`access:privacy:export`, and `access:privacy:erase`; the built-in privacy
+officer role contains all four.
+
+## Provider Rules
+
+A provider must:
+
+- enforce tenant ownership for every record and action;
+- return stable, unique resource and action identities;
+- avoid credentials, hashes, tokens, unnecessary telemetry, and unrelated
+  third-party data;
+- distinguish mutable personal data from immutable institutional evidence;
+- state a retention reason for immutable evidence;
+- propose manual review instead of an automatic action when authority is
+  ambiguous or a resource spans tenants;
+- return exactly one execution result per requested action;
+- make execution idempotent and avoid committing the caller's transaction;
+- keep all actual mutations inside the owning module.
+
+Each active module without a DSAR provider is listed in coverage. This is a
+deliberate fail-visible state, not proof that the module stores personal data.
+An institution may call an export complete only after it has reviewed both the
+provider runs and that coverage list.
+
+## Retention And Evidence
+
+Erasure and retention are separate decisions. Stable object IDs, authorization
+history, function incumbency, formal decisions, delivery evidence, and audit
+records may remain necessary for accountability. Providers expose those items
+with a concrete reason and Core prevents them from being selected as executable
+actions. Policy may further restrict an action, but it must never silently
+loosen a provider's retention decision.
+
+All lifecycle mutations and exports produce tenant audit events. The request
+stores an evidence digest after every revision. This digest detects accidental
+or unauthorized mutation of the aggregate; it is not a digital signature or a
+substitute for signed recovery evidence.
+
+## Current Limits
+
+- Access is the first native provider. Other enabled modules appear in the
+  coverage list until they add a provider or an explicit no-subject-data
+  declaration is standardized.
+- Verification of the requester's identity and statutory deadline escalation
+  remain institutional workflows outside this API.
+- Global account or identity erasure is deliberately manual.
+- Exports are JSON. A human-readable signed response package remains a later
+  Reporting/Templates integration.
@@ -7,6 +7,16 @@ files.

 ## Runtime Configuration Contract

+Worker and queue observability is provider-neutral. Runtime modules register a
+bounded `RuntimeWorkStatusProviderRegistration` with Core; the Ops module
+projects its sanitized status without importing Celery, Redis, or module job
+implementations. Providers must use explicit `null` values for unsupported
+queue depth, active/reserved work, failure count, and heartbeat evidence. An
+unavailable metric must never be interpreted as zero or as proof of health.
+The standard Core adapter reports the configured Celery/Redis runtime and
+combines its bounded inspection result with registered worker heartbeat and
+stale-threshold evidence.
+
 Self-hosted installability follows the staged approach documented in
 `SELF_HOSTED_INSTALLABILITY.md`: generate an explicit env template, validate it,
 run production-like rehearsal with Compose-backed dependencies, then use the
@@ -278,12 +288,15 @@ through the same trusted address range.
 | --- | --- |
 | `GOVOPLAN_MODULE_PACKAGE_CATALOG_URL` or `GOVOPLAN_MODULE_PACKAGE_CATALOG` | Module package catalog source. |
 | `GOVOPLAN_MODULE_PACKAGE_CATALOG_TRUSTED_KEYS_FILE` | Preferred production keyring path. |
-| `GOVOPLAN_MODULE_PACKAGE_CATALOG_APPROVED_CHANNEL` | Approved catalog channel, for example `stable`. |
+| `GOVOPLAN_MODULE_PACKAGE_CATALOG_APPROVED_CHANNELS` | Comma-separated approved catalog channels, for example `stable`. The legacy singular name remains readable during migration. |
 | `GOVOPLAN_LICENSE_TRUSTED_KEYS_FILE` | Trusted license issuer keyring path. |
 | `GOVOPLAN_LICENSE_ENFORCEMENT` | Enables license enforcement when set to `true`. |

 Trust roots are deployment-managed and should not be editable through the
-running WebUI.
+running WebUI. When no catalog override is configured, the Admin package
+directory uses GovOPlaN's public stable catalog and the trust anchor bundled
+with the installed Core release. Production operators may still pin a newer or
+institution-specific catalog/keyring explicitly with the settings above.

 ### Mail Test Credentials

@@ -17,6 +17,13 @@ operator, and roadmap pages.
 | Action/effect automation layer | `ACTION_EFFECT_AUTOMATION_LAYER.md` | Action/effect contracts, consequence preview, runner semantics, and module boundary for automation. |
 | External references and integration maturity | `EXTERNAL_REFERENCES_AND_INTEGRATION_MATURITY.md` | Stable external identity and cumulative connector maturity; configured source authority is defined by the meta target architecture. |
 | Institutional context and governed references | `INSTITUTIONAL_CONTEXT_CONTRACT.md` | Shared temporal, actor/representation, institution, mandate, service, party, decision, evidence, legal-basis, information-governance, presentation, and geo DTO/provider contracts. |
+| Provider-neutral record filing | `RECORDS_FILING_CONTRACT.md` | Exact source-revision identity, current source authorization, idempotent filing, capability discovery, and ownership boundary. |
+| Temporal data read context | `TEMPORAL_DATA_CONTEXT.md` | Valid-time and recorded-time titlebar selection, HTTP/cache contract, security boundary, and module-adoption rule. |
+| Cross-module information governance adoption | `INFORMATION_GOVERNANCE_ADOPTION.md` | Manifest evidence and enforcement rules for temporal browsing, purpose-aware access, retention, and institutional context. |
+| Data-subject access and erasure requests | `DATA_SUBJECT_REQUESTS.md` | Provider-owned search and mutation, explicit coverage, governed export, retained evidence, permissions, and idempotent execution. |
+| Context-sensitive F1 help | `CONTEXTUAL_HELP_CONTRACT.md` | Focus, route, module-manifest documentation contexts, Docs projection, and hosted fallback. |
+| Semantic documentation subjects | `SEMANTIC_DOCUMENTATION_SUBJECTS.md` | Stable configured-artifact identity, safe provider discovery, revision review, authorization, and lifecycle semantics. |
+| German localization and help quality gate | `LOCALIZATION_AND_HELP_QUALITY.md` | German reference locale, new-installation default, catalog completeness, automatic page associations, and explicit-help review priorities. |
 | Postbox E2EE target architecture | `POSTBOX_E2EE_ARCHITECTURE.md` | Strategic encrypted postbox/mailbox model, key ownership, role mailbox semantics, and retraction limits. |
 | Shared state, runtime coordination, and recovery | `STATE_AND_RECOVERY_CONTRACT.md` | State profiles, object storage, node registration/drain, fenced leases, migration ordering, and recovery evidence. |
 | Module lifecycle recovery | `MODULE_LIFECYCLE_RECOVERY.md` | Installer/live-graph recovery modes, deployment fence, evidence, retry blocking, and operator reconciliation. |
@@ -37,7 +44,9 @@ operator, and roadmap pages.
 | Topic | Canonical document | Notes |
 | --- | --- | --- |
 | Product roadmap and module routing | `GOVOPLAN_MASTER_ROADMAP.md` | Product-level sequencing, implementation gates, issue routing, and missing-module decisions. |
-| Institutional governance target | `govoplan/docs/INSTITUTIONAL_GOVERNANCE_TARGET_ARCHITECTURE.md` | Cross-product semantic layers, source-authority modes, candidate Mandates/Services/Parties/Decisions boundaries, and migration sequence. |
+| Stable platform ideas | `govoplan/docs/strategy/PLATFORM_CORE_IDEAS.md` | Cross-product thesis, canonical distinctions, product experience rule, maturity rule, and decision test. |
+| Current cross-product reconciliation | `govoplan/docs/strategy/STRATEGY_STATUS.md` | The only current prose status source; generated evidence and Gitea remain authoritative inputs. |
+| Institutional governance target | `govoplan/docs/architecture/INSTITUTIONAL_GOVERNANCE_TARGET_ARCHITECTURE.md` | Cross-product semantic layers, source-authority modes, candidate Mandates/Services/Parties/Decisions boundaries, and migration sequence. |
 | UI/UX decisions | `UI_UX_DECISION_LEDGER.md` | Binding guided-UI decisions, open decisions, impact index, and review checklist. |
 | Core interface migration | `INTERFACE_PATTERN_MIGRATION.md` | Core-owned settings, credential, retention, lifecycle, and shared-component evidence for the product pattern language. |
 | Interface ethics and design doctrine | `INTERFACE_ETHICS_AND_DESIGN_DOCTRINE.md` | Product-level doctrine for context, decision, consequence, contestability, responsibility, and traceability. |
@@ -40,7 +40,7 @@ must not imply that GovOPlaN holds an authoritative copy.
 Integration maturity states what an adapter is capable of doing. It does not
 decide which system owns truth for a configured object or field group. A
 binding separately selects one of the source-authority modes defined by the
-[institutional governance target architecture](../../govoplan/docs/INSTITUTIONAL_GOVERNANCE_TARGET_ARCHITECTURE.md):
+[institutional governance target architecture](../../govoplan/docs/architecture/INSTITUTIONAL_GOVERNANCE_TARGET_ARCHITECTURE.md):

 - `native_authoritative`
 - `external_authoritative`
@@ -13,4 +13,4 @@ tools/gitea/gitea-sync-wiki.py --help

 Canonical documentation:

- `/mnt/DATA/git/govoplan/docs/GITEA_ISSUES.md`
+- `/mnt/DATA/git/govoplan/docs/project/GITEA_ISSUES.md`
@@ -221,7 +221,8 @@ Admin lists use bounded container grids:
 - recipient import with column mapping;
 - session/device revocation UI;
 - backup/restore, monitoring, and update procedures;
- DSAR workflows and evidence bundle verifier;
+- additional module providers and signed human-readable response packages for
+  the implemented DSAR workflow described in `DATA_SUBJECT_REQUESTS.md`;
 - campaign ownership transfer workflow;
 - policy impact analysis before delete/disable/unshare/change;
 - LDAP/OIDC/SAML provisioning;
@@ -10,15 +10,15 @@ gates. Issues are the active backlog; this document is durable architecture
 planning context and should be mirrored to the Gitea wiki.

 The meta repository's
-[Connected Governance Platform Roadmap](https://git.add-ideas.de/GovOPlaN/govoplan/src/branch/main/docs/CONNECTED_GOVERNANCE_PLATFORM_ROADMAP.md)
+[GovOPlaN Roadmap](https://git.add-ideas.de/GovOPlaN/govoplan/src/branch/main/docs/strategy/ROADMAP.md)
 describes the corresponding cross-product stakeholder visions, configurable
 service and operating configurations, connected outcome stories, and
 capability horizons. The selected five-stage delivery sequence and its gates
 are in the meta repository's
-[Reference Journey Program](https://git.add-ideas.de/GovOPlaN/govoplan/src/branch/main/docs/REFERENCE_JOURNEY_PROGRAM.md).
+[Reference Journey Program](https://git.add-ideas.de/GovOPlaN/govoplan/src/branch/main/docs/strategy/REFERENCE_JOURNEY_PROGRAM.md).
 The semantic target, source-authority modes, and reconciliation with the
 implemented platform are in the meta repository's
-[Institutional Governance Target Architecture](https://git.add-ideas.de/GovOPlaN/govoplan/src/branch/main/docs/INSTITUTIONAL_GOVERNANCE_TARGET_ARCHITECTURE.md).
+[Institutional Governance Target Architecture](https://git.add-ideas.de/GovOPlaN/govoplan/src/branch/main/docs/architecture/INSTITUTIONAL_GOVERNANCE_TARGET_ARCHITECTURE.md).
 Those product documents are canonical; this Core roadmap remains their
 technical sequencing and module-routing companion.

@@ -0,0 +1,131 @@
+# Information Governance Adoption
+
+## Platform Rule
+
+Temporal browsing, purpose-aware access, retention, and institutional context
+are platform-wide information-governance dimensions. Every module receives the
+same contract by default. A module may claim `partial` or `enforced` only with
+repository-owned object scope, evidence, and limitations; it may claim
+`not_applicable` only when the dimension genuinely does not apply.
+
+Historical business data is always authorized under the current security
+state. No module may use a historical permission, membership, role, function
+assignment, or policy projection to weaken present-day access.
+
+Platform-wide adoption is tracked in
+[GovOPlaN #40](https://git.add-ideas.de/GovOPlaN/govoplan/issues/40), with
+temporal reads detailed in
+[GovOPlaN #39](https://git.add-ideas.de/GovOPlaN/govoplan/issues/39).
+
+## Manifest Declaration
+
+`ModuleManifest.information_governance` publishes four dimensions:
+
+- `temporal_browsing`;
+- `purpose_aware_access`;
+- `retention`;
+- `institutional_context`.
+
+Each dimension declares:
+
+- adoption: `not_applicable`, `contract_only`, `partial`, or `enforced`;
+- object types covered;
+- repository-local test/documentation evidence;
+- the remaining limitation for `contract_only` or `partial`.
+
+The default is intentionally `contract_only`. It applies the platform rule
+without pretending that existing domain queries and effects already enforce
+it. `reference_ready`, `supported`, and `lts` modules cannot retain an
+applicable dimension below `enforced`.
+
+## Read Contract
+
+For every persistent domain object, the owner classifies the read:
+
+1. **Current-only:** historical semantics do not exist and the API says so.
+2. **Valid-time:** select facts effective now or at the requested instant.
+3. **Bitemporal:** additionally select only revisions known by `recorded_at`.
+4. **All-validity:** return effective revisions in a bounded history view.
+
+The Core temporal middleware supplies the request context. Owners apply it in
+repositories or query helpers, include it in cache keys, return evaluated
+context, and test current/at/all plus recorded-time boundaries. Search,
+reporting, exports, selectors, counts, and drill-through must use the same
+projection as the owning list/detail API.
+
+## Purpose-Aware Access Contract
+
+Permission establishes a technical action ceiling. Purpose-aware access asks
+whether this actor, represented capacity, case/work item, legal basis, and
+declared use may access this object now.
+
+- A client-supplied purpose is an assertion, never authority by itself.
+- The owner or Policy capability validates the purpose and returns explainable
+  provenance.
+- Sensitive access can require case assignment, mandate, reason capture,
+  approval, or break-glass evidence.
+- Search, selectors, reporting, exports, background jobs, and connectors apply
+  the same decision.
+- Audit records the validated purpose identifier and decision reference, not
+  unnecessary content.
+
+## Retention Contract
+
+Every persistent object declares an owner, retention class or policy reference,
+trigger, start instant, hold behavior, review/disposition action, and evidence.
+Retention is not a generic timestamp deletion job.
+
+- Domain owners enumerate and execute their own effects through a typed
+  retention provider.
+- Policy resolves inherited ceilings and simulation.
+- Records owns record disposition; Files owns byte/object effects; Audit owns
+  audit-detail behavior; external providers declare their own effect and
+  recovery semantics.
+- Dry-run, legal hold, exact revision, idempotency, outcome unknown,
+  reconciliation, correction, and destruction evidence are mandatory for
+  consequential removal.
+
+## Institutional Context Contract
+
+Consequential objects and effects carry the relevant tenant, institution,
+organization unit, function, mandate/jurisdiction, service/case/work item,
+party/representation, decision, and record references. Context is minimized to
+what the operation needs. Organizational membership is not itself permission
+or mandate.
+
+Events, automation intents, audit evidence, records, and external effects retain
+the same governed context envelope or an exact reference to it. Consumers must
+not reconstruct authority later from mutable current structures.
+
+## Adoption Order
+
+1. Inventory every domain list/detail/search/export/effect and classify all
+   four dimensions.
+2. Migrate institutional owners first: Access, IDM, Organizations, Mandates,
+   Services, Parties, Cases, Approvals, Committee, Decisions, Voting, and
+   Records.
+3. Migrate communication and content: Addresses, Distribution Lists, Campaign,
+   Postbox, Mail, Calendar, Files, Templates, and Forms Runtime.
+4. Migrate data projections: Connectors, Datasources, Dataflow, Reporting,
+   Search, Risk Compliance, and Dashboard.
+5. Migrate workflow/task/background/provider operations and prove that no
+   asynchronous path drops context.
+6. Advance manifest claims only after owner tests and browser/reference-journey
+   evidence pass.
+
+The generated platform inventory reports adoption counts and module details.
+Gitea tracks individual migrations; the declaration is evidence and a maturity
+gate, not a substitute for implementation.
+
+## Definition Of Enforced
+
+A dimension is `enforced` only when:
+
+- all declared object types and public reads/effects use it;
+- list/detail/count/search/export/worker behavior is consistent;
+- cache and pagination semantics cannot cross contexts;
+- absence, invalid values, and inaccessible referenced context fail safely;
+- tests cover current, historical, unauthorized, replay, and module-absence
+  combinations appropriate to the dimension;
+- user/admin documentation explains behavior and limitations;
+- the manifest cites those tests and docs.
@@ -8,6 +8,9 @@ The shared contract lives in `govoplan_core.core.institutional`.
 Core owns reference shapes and provider protocols only. It does not own shared
 Mandate, Service, Party, Decision, evidence, or geography tables. Domain modules
 own persistence and authorization; optional capabilities resolve the references.
+Interactive reads use the separate platform temporal-data context documented in
+`TEMPORAL_DATA_CONTEXT.md`; it never changes current authorization or supplies
+mutation dates.

 ## Envelope

@@ -13,7 +13,20 @@ domain modules own their compositions.
 | Reusable credentials | Repeated administration with an adaptive create/edit dialog, optional password generator, and destructive confirmation | Secret values are write-only; generated candidates use the browser cryptographic API without a weak fallback and do not replace the field until explicitly confirmed; scope/permission blockers name the required action, responsible actor, and destination; unavailable row actions remain keyboard-explainable | `CredentialEnvelopeManager.tsx`, shared `PasswordField`, `PasswordGeneratorDialog`, `ActionBlockerHint`, `Button`, `TableActionGroup`, and `ConfirmDialog` |
 | Retention policy | Effective-policy editor with inherited source paths and typed, narrowing-only controls | Parent locks and missing write authority are explicit; the save action distinguishes locks, missing target, loading, clean draft, and active save | `RetentionPolicyManagement.tsx`, policy logic tests, `test-core-interface-patterns.mjs` |
 | Module lifecycle | Guided operator projection over durable installer-queue evidence | Preflight, handoff, progress, stale evidence, recovery, and rollback consequences remain visible | Admin module lifecycle tests and the Core installer-queue contract |
-| Shared configuration primitives | Cross-module component contract | Dialog focus, blocker structure, disabled-action focus, contextual help, unsaved changes, confirmation, loading, alerts, problem lists, and policy provenance are centralized | Core component tests and module-permutation build |
+| Shared page frame | Domain-neutral headed page layout used by Core and optional modules | Standalone, workspace, and embedded modes make inset and scroll ownership explicit; sticky heading, rich descriptions, route actions, notices, loading, narrow-layout collapse, and contextual-help identity are centralized; composite administration workspaces may delegate the visible heading to their contributed panel while retaining the same frame; `AdminPageLayout` composes the contract | `PageLayout.tsx`, `page-layout.test.tsx`, Core Settings, Access administration, Docs, Mail bounce processing, Dashboard, Ops, Campaign, and `check-shared-webui-layouts.py` |
+| Full-canvas workspace | Navigation/content and list/detail canvases that own pane geometry and scrolling | Navigation and split variants, primary-pane width, pane-owned or contained scrolling, responsive stacking or navigation collapse, pane labels, and contextual-help identity are centralized without encoding domain navigation | `WorkspaceLayout.tsx`, `workspace-layout.test.tsx`, Core Settings, Access administration, Docs, Organizations, Campaign, Templates, Approvals, and `check-shared-webui-layouts.py`; the raw-workspace exception baseline is empty |
+| Full-height module frame | Outer module landmark and viewport/container sizing | `WorkspaceFrame` centralizes surface, overflow, box sizing, accessible naming, help identity, and application-viewport height so modules do not copy the `100vh - shell` frame | `WorkspaceFrame.tsx`, `layout-primitives.test.tsx`, Dataflow, Workflow, Datasources, Distribution Lists, Notifications, Tasks, Scheduling, Forms, Portal, Projects, Records, and Reporting |
+| Responsive action toolbar | Domain-neutral action and filter grouping for pages, workspaces, editors, and overlays | Density, surface, grouping, flexible space, accessible naming, toolbar help identity, and responsive wrapping are centralized while modules retain action wording, authority, and consequence | `ActionToolbar.tsx`, `layout-primitives.test.tsx`, WYSIWYG, Calendar, Files, Forms, Templates, and the product-wide primitive check |
+| Semantic page and pane action bars | Overview, collection, detail, editor, and workspace intent declared independently from frame geometry; full-canvas panes add workspace/collection/detail/editor scope | Core renders leading Reload from a guarded descriptor; editor persistence owns clean, dirty, invalid, saving, failed, and conflict feedback plus guarded Discard and far-right Save; destructive actions occupy an explicit named boundary; read-only surfaces do not invent Save | `PageActionBar.tsx`, `WorkspaceActionBar.tsx`, `PAGE_LAYOUT_USAGE_GUIDELINES.md`, component and browser conformance, every headed page and full-canvas workspace, and the discovery-based `check-shared-webui-layouts.py` |
+| Catalogue and state composition | Search/filter bars, selectable navigation lists, count badges, and empty/blocked/error panels | Width, surface, wrap, selection geometry, title/description truncation, numeric emphasis, state sizing, tone and action placement are centralized; modules retain query behavior, object state and consequences | `FilterBar.tsx`, `SelectionList.tsx`, `CountBadge.tsx`, `StatePanel.tsx`, `layout-primitives.test.tsx`, and list/detail modules across Cases, Committee, Dataflow, Forms, Notifications, Portal, Postbox, Projects, Records, Reporting, Tasks, Templates, and Workflow |
+| Content and form grids | Equal-column content, field, and native-form geometry | Explicit 1–4 columns, standard gaps, item spans, alignment, and named narrow/workspace/standard/wide collapse points replace generic and module-prefixed copies; unequal domain tracks remain local | `ContentGrid.tsx`, `layout-primitives.test.tsx`, Core dashboard/settings/mail, Calendar dialogs, Forms editor, Datasources, Postbox, Campaign, administration surfaces, and the product-wide primitive check |
+| Content sections | Repeated editor/detail section surfaces | Border, surface, compact/default density, stacked flow and block rhythm are centralized without encoding section contents | `ContentSection.tsx`, `layout-primitives.test.tsx`, Datasources, Distribution Lists, Templates, Dataflow, and Workflow |
+| Form sections | Reusable heading/description/action/content grouping inside forms | Plain, separated, and panel variants centralize hierarchy and narrow action placement without moving validation, permissions, values, or domain wording into Core | `FormSection.tsx`, `layout-primitives.test.tsx`, Addresses contact editing, and Quick Access preferences |
+| Metric groups and drill-downs | Reusable responsive grouping around metric cards with an explicit optional detail affordance | Fixed one-to-five and auto-fit columns, minimum card widths, density, block/inset/zero spacing, and named collapse points replace the product-wide `metric-grid` class and cross-module dashboard overrides; typed link or in-page drill-downs name their destination while summary-only, non-enumerable, derived, or privacy-suppressed values remain inert | `MetricGrid.tsx`, `MetricCard.tsx`, `metric-card.test.tsx`, `layout-primitives.test.tsx`, Core and Dashboard summaries, administration, Campaign, Ops, Files, Search, and dashboard widgets |
+| Description lists | Semantic property and fact presentation | Stacked and inline variants, one-to-five list columns, density, term width, wrapping, and responsive collapse replace both `admin-details-grid` and `detail-list`; `DescriptionItem` preserves native `dt`/`dd` anatomy | `DescriptionList.tsx`, `layout-primitives.test.tsx`, Access and Tenancy administration, Audit, Policy, Campaign reports/imports, Docs, Settings, Ops, and Reporting |
+| Dialog anatomy | Shared outer dialog plus composable body and footer regions | Size and administration variants, body padding, descriptions, notices, fixed action wrapping, native form flow, and section grouping are centralized; focus trapping and stack lifecycle remain unchanged | `Dialog.tsx`, `DialogAnatomy.tsx`, `dialog-focus.test.tsx`, `layout-primitives.test.tsx`, Addresses, Calendar, Records, Datasources, Distribution Lists, Files, and Templates |
+| Definition-editor visuals | Reusable graph palette, canvas chrome, node icon/port geometry, empty overlay and floating activity state | Core owns visual and responsive anatomy while node/edge types, validation, execution, provenance and workflow semantics remain in Dataflow or Workflow | `DefinitionPalette.tsx`, `DefinitionNodeIcon.tsx`, `FloatingStatus.tsx`, shared definition styles, Dataflow and Workflow structure/build checks |
+| Shared configuration primitives | Cross-module component contract | Dialog focus, blocker structure, disabled-action focus, route/page/field/action F1 help, unsaved changes, confirmation, loading, alerts, problem lists, and policy provenance are centralized | Core component tests, `CONTEXTUAL_HELP_CONTRACT.md`, and module-permutation build |

 ## Boundary

@@ -26,3 +39,15 @@ they are not reasons to add sibling-private behavior to Core.
 Raw JSON remains permitted only for diagnostics, expert inspection,
 interchange, or conflict evidence. It is not a primary Core configuration
 editor.
+
+New headed pages use `PageLayout`; full-canvas modules use `WorkspaceFrame`
+and, where applicable, `WorkspaceLayout`, so Core owns the frame and pane
+scrolling. Module CSS continues to own unequal domain content layout, never the
+shared page, workspace, toolbar, state, list, filter, metric, section, or graph
+chrome. Retired copies and module-local component definitions are rejected by
+`check-shared-webui-primitives.py`. That check also requires standard dialog
+widths to use `Dialog size` and keeps every remaining domain-specific width in
+a reviewed, decrease-only exception baseline. The companion layout check now
+has zero raw page-frame and zero raw workspace exceptions, discovers semantic
+consumers without a hand-maintained route list, requires semantic action bars
+on `WorkspaceFrame` routes, and rejects ad-hoc panel-header toolbars.
@@ -0,0 +1,97 @@
+# Localization And Contextual Help Quality
+
+## Reference Language
+
+German (`de`) is GovOPlaN's first-class reference target. Every translation key
+used by a shipped WebUI must exist in German and English. German completeness is
+a release gate; English remains the source-code fallback language so existing
+literal labels and external developer APIs do not change semantics.
+
+New installations and tenants default to German. Existing system, tenant, and
+user preferences are preserved. The available-language and policy model can
+still select another default or disable a package at the relevant scope.
+
+Explicit high-risk help content and browser acceptance are tracked in
+[Core #284](https://git.add-ideas.de/GovOPlaN/govoplan-core/issues/284).
+
+The platform inventory recognizes both inline locale objects and generated
+catalogs declared as `const de` / `const en`. Its strict mode requires both
+locales and reports `de` explicitly as the reference locale.
+
+## Help Resolution
+
+Every focusable field and action receives a stable derived F1 identity from the
+shared shell, even when the component has no dedicated help text. Resolution
+falls back from field/action to dialog or page and then to the module's visible
+documentation baseline.
+
+Backend manifests publish explicit topic associations first. Core additionally
+associates declared route, navigation, settings, and View surface IDs with the
+module's static user or administrator documentation baseline. Feature modules
+should still add exact `metadata.help_contexts` entries for consequential,
+unfamiliar, policy-controlled, destructive, security-sensitive, or legally
+meaningful fields and actions.
+
+The shared retention-policy editor exposes explicit contexts for each stored
+data category, audit-detail control, lower-level override switch, target
+selector, reload, and save action. The Policy module owns the matching German
+administrator guidance. Retention execution surfaces use separate contexts for
+dry-run, destructive apply, confirmation, and outcome review so F1 opens the
+consequence and recovery guidance closest to the focused control.
+Shared controls may set `helpModuleId` when their documentation owner differs
+from the containing page; the retention editor uses this to resolve Policy help
+from both administration and Campaign surfaces.
+
+The shared reusable-credential manager keeps Access as its documentation owner
+and publishes exact contexts for credential kind, secret replacement/removal,
+module and server restrictions, lower-scope visibility, activation, save, and
+irreversible deletion. This ensures F1 explains secret custody and the effect on
+dependent connections from system, tenant, group, user, and personal surfaces.
+
+The source inventory treats literal `helpContextId` and
+`data-help-context-id` declarations as authored help associations, including a
+native control nested in `FormField`. Dynamic context expressions remain
+separate evidence and generic derived fallbacks remain in the richer-help
+candidate queue.
+
+The generated `help_review_candidates` list is therefore a content-depth queue,
+not a list of controls on which F1 cannot work. It should prioritize:
+
+1. effect, deletion, delivery, retention, disclosure, encryption, and recovery;
+2. identity, representation, mandate, institutional context, and purpose;
+3. valid-time versus recorded-time selection;
+4. provider authority, synchronization, conflict, and outcome unknown;
+5. fields whose consequences are not evident from their label.
+
+The shared browser conformance journey mounts the production Help menu and
+resolver. It proves that F1 uses the focused control rather than only the page,
+maps an exact retention action to Policy-owned administrator documentation,
+retains the page context as fallback for derived actions, exposes an accessible
+modal at narrow widths, closes with Escape, and restores focus to the triggering
+control. Module journeys should add their own exact high-risk mappings; they do
+not need to reimplement the keyboard or dialog mechanics.
+
+## Verification
+
+```bash
+cd /mnt/DATA/git/govoplan
+/mnt/DATA/git/govoplan/.venv/bin/python \
+  tools/inventory/platform-interface-inventory.py \
+  --strict --strict-declarations --strict-endpoints
+```
+
+The check must report:
+
+- reference locale `de` present and complete;
+- no used key missing from `de` or `en`;
+- every field has a resolvable F1 context;
+- no duplicate stable IDs;
+- no undeclared public WebUI surface;
+- no stale runtime route or endpoint declaration.
+
+Browser acceptance is part of the focused workspace gate and can be run alone:
+
+```bash
+cd /mnt/DATA/git/govoplan-core/webui
+npm run test:conformance
+```
@@ -16,7 +16,7 @@ The experimental remote WebUI bundle loading design is tracked in
 The cross-product semantic layers, source-authority modes, and candidate
 Mandates, Services, Parties, and Decisions boundaries are canonical in the
 meta repository's
-[`INSTITUTIONAL_GOVERNANCE_TARGET_ARCHITECTURE.md`](../../govoplan/docs/INSTITUTIONAL_GOVERNANCE_TARGET_ARCHITECTURE.md).
+[`INSTITUTIONAL_GOVERNANCE_TARGET_ARCHITECTURE.md`](../../govoplan/docs/architecture/INSTITUTIONAL_GOVERNANCE_TARGET_ARCHITECTURE.md).

 ## Layer Model

@@ -213,8 +213,29 @@ Other stable runtime capabilities currently include:
  `calendar.externalProfiles`
 - `poll.scheduling`
 - `notifications.dispatch`
+- `application_status.projection`
+- `payments.requests`
 - `workflow.definitionContributions` and `workflow.runtimeWorker`

+`calendar.scheduling` keeps workflow modules independent of Calendar-owned
+models and transport adapters. Consumers may create tentative events, promote
+the selected event in place, and release unused events idempotently. The
+provider returns bounded external-delivery and outbox references so consumers
+can retain retry state without copying Calendar's synchronization internals.
+
+`application_status.projection` lets a presentation module resolve the tenant
+and display or request access to an owner-supplied, deliberately bounded
+applicant-status view. The provider retains policy, authorization, token, and
+record ownership; consumers must not query provider tables or enlarge the
+projection.
+
+`payments.requests` carries replay-safe payment obligations and evidence-bound
+manual reconciliation across module boundaries. Procedure modules identify the
+source Case or Workflow in the command and retain the returned payment ID;
+Payments remains authoritative for amount, currency, state, transaction
+reference, and reconciliation evidence. Ledger, invoice, and external payment
+providers remain separate follow-on contracts.
+
 The provider-neutral `idm.relationships` contract carries tenant-scoped typed
 groups, effective-dated identity relationships, and explicit membership
 decisions. It deliberately does not expose IDM persistence models or imply an
@@ -305,6 +326,8 @@ contract checks, are:
 - `files.access`, `files.campaign_attachments`
 - `mail.campaign_delivery`
 - `notifications.dispatch`
+- `application_status.projection`
+- `payments.requests`
 - `poll.availability_matrix`, `poll.option_selection`,
  `poll.response_collection`, `poll.signed_participation`,
  `poll.workflow_context`
@@ -1377,8 +1400,10 @@ The package install-plan API records operator intent only:
 - `GET /api/v1/admin/system/modules/package-catalog` reads approved package
  references from `GOVOPLAN_MODULE_PACKAGE_CATALOG` so operators can add known
  module refs to the install plan without typing them manually. The endpoint
-  also reports catalog validity, channel, signature, trust state, and the
-  configured path.
+  also reports catalog validity, channel, signature, trust state, source and
+  artifact provenance, release availability, configuration requirements, and
+  per-entry compatibility/blocker state. Withdrawn entries are visible for
+  diagnosis but cannot be planned.
 - `POST /api/v1/admin/system/modules/install-plan/catalog/{module_id}` saves
  a planned install or update row from a validated catalog entry. Installed
  modules are planned as updates. Catalog signature and approved-channel policy
@@ -1476,6 +1501,10 @@ The installer preflight is intentionally conservative:
 - the `shared` state profile blocks in-place package mutation; clustered
  installations must roll one verified immutable module composition across all
  replicas;
+- official runtime images carry the full verified package profile, while the
+  desired module graph controls activation and tenant/View/Policy contracts
+  control availability and presentation; package lifecycle must not be reused
+  as a tenant or user visibility switch;
 - installed module manifests must be compatible with the supported manifest
  contract and current core version;
 - uninstalling `tenancy`, `access`, or `admin` is blocked;
@@ -1592,6 +1621,17 @@ URLs never contain credentials; only credential-envelope references cross the
 contract. Provider-specific details belong in sanitized provenance rather than
 in a shared domain schema.

+## Semantic Documentation Subject Contract
+
+Optional modules expose configured artifacts that can be documented through
+the module-scoped `documentation.semantic_subjects.<module_id>` capability.
+Core supplies stable tenant-scoped references, typed nested anchors, safe
+localized descriptors, revision/fingerprint review signals, and explicit
+availability states. Providers remain responsible for authorization and do not
+expose configuration payloads or credentials. Docs discovers the capability
+and owns authored content; it does not import feature internals. See
+`SEMANTIC_DOCUMENTATION_SUBJECTS.md` for the contract and adoption rules.
+
 ## Build And Verification

 Backend verification from core:
@@ -0,0 +1,158 @@
+# Page Layout and Action Guidelines
+
+This document defines the binding composition grammar for headed GovOPlaN
+pages. Core owns the reusable anatomy; each module owns its domain actions,
+wording, authorization, consequences, and data state.
+
+## Required Page Frame
+
+- Use `PageLayout` for every headed standalone, workspace, or embedded page.
+- Declare exactly one semantic `archetype`; do not infer page intent from the
+  `mode`, which controls geometry and scroll ownership only.
+- Use `WorkspaceFrame` for a full-height module surface and
+  `WorkspaceLayout` only where navigation/content or list/detail panes are
+  genuinely part of the interaction.
+- Put page-wide feedback in `PageLayout` notices. Use `DismissibleAlert` for a
+  recoverable warning or failure and `StatePanel` when the entire surface is
+  loading, empty, unavailable, or blocked.
+- Do not reproduce shared page padding, heading, toolbar, form-grid, section,
+  table, dialog, or breakpoint CSS in a module.
+
+## Product Side Rail
+
+Module manifests contribute stable navigation surface identifiers, labels,
+paths, icons, and default order. Core owns the side-rail composition and the
+shared `NavigationPreferenceEditor`; modules must not fork this editor or
+persist their own rail ordering.
+
+Navigation preferences are layered in this order: module defaults, system,
+tenant, then user. Each higher layer may reorder or change visibility. System
+and tenant administrators may lock an entry visible; a lower layer can still
+move that entry, but cannot hide it. Personal preferences cannot create locks.
+An unset preference inherits the complete lower layer, while “Use inherited
+order” removes the current layer rather than copying its values. Unknown item
+identifiers remain harmless so uninstalling, disabling, or later reinstalling
+a module does not corrupt the rail.
+
+The platform module response projects module, system, and tenant layer states
+alongside the effective user state. Editors must initialize from the layer
+immediately below the scope they edit, so a system or tenant administrator's
+personal preference is never promoted accidentally. Preference saves refresh
+the platform module projection. View policy, permissions, and tenant module
+entitlements remain independent final visibility gates; changing rail
+preferences never grants access.
+
+## Semantic Page Archetypes
+
+| Archetype | Use when |
+| --- | --- |
+| `overview` | The page summarizes health, metrics, or several peer areas without owning one primary collection or draft. |
+| `collection` | The primary object is a searchable/listable collection and Create, when available, applies to that collection. |
+| `detail` | The page primarily presents one record, report, or immutable projection. |
+| `editor` | The page owns one explicit draft with Save and Discard behavior. |
+| `workspace` | The page coordinates several panes, stages, or task-local operations that cannot honestly be reduced to one record or draft. |
+
+The archetype remains stable for the current interaction. A page may switch
+from `overview` to `editor` when the user explicitly enters configuration
+mode. It must not call a page an editor merely because a dialog or an inline
+filter is editable.
+
+## Page Action Rules
+
+Pass one `PageActionBar` to the `PageLayout` `actions` slot. Full-canvas
+workspaces use the same contract through `WorkspaceActionBar`, with an explicit
+`workspace`, `collection-pane`, `detail-pane`, or `editor-pane` scope. The
+variant makes the surface's intent inspectable and preserves the same keyboard
+and visual order across modules. `ActionToolbar` remains the lower-level
+component for section-local controls; it is not a substitute for a semantic
+page or pane action bar.
+
+| Page kind | Leading group | Trailing group |
+| --- | --- | --- |
+| Overview | Reload when refreshable, then context | Help, then ordinary primary actions |
+| Collection | Reload when refreshable, then collection context such as export | Help, then Create at the far right |
+| Detail | Reload when refreshable, then object context | Help, ordinary primary actions, then a separated destructive group |
+| Editor | Reload only when refresh is a distinct safe operation, then context | Dirty state, Help, ordinary primary actions, separated destructive actions, Discard, then Save at the far right |
+| Workspace | Reload when the coordinated projection can become stale, then task context | Help, ordinary primary actions, then a separated destructive group |
+
+Reload means re-fetch or re-evaluate the current surface. A page declaring
+`refreshable` must provide it, and a non-refreshable page must not use Reload as
+a synonym for Cancel, Reset, or Discard. Reload never silently destroys a dirty
+draft. Create is a collection-wide action and is not duplicated in a
+persistent side panel. Save is present only where the page owns an editable
+draft; a read-only detail page must not display a disabled or inert Save merely
+to fill the slot.
+
+Editor bars always keep Discard and Save visible. Their required `state`
+projection is one of `clean`, `dirty`, `invalid`, `saving`, `save-failed`, or
+`conflict`, and the central component announces it through a live status label.
+Clean and saving states disable both persistence actions; invalid disables Save
+while retaining Discard. Failed saves and conflicts keep the draft recoverable
+and allow an authorized retry after the module has shown the owning error or
+conflict evidence. A module may add a more specific validation, policy, or
+permission blocker. The editor must register its draft with
+`useUnsavedDraftGuard` (or a shared hook that uses the same registration
+contract), so browser unload, route navigation, section changes, Reload, and
+the explicit Discard path cannot silently lose work.
+
+Reload is rendered by Core from a descriptor rather than passed as arbitrary
+button markup. It can project `current`, `stale`, `reloading`, or
+`reload-failed`; `loading` is the shorthand for `reloading`. A failed refresh
+must preserve usable loaded data, expose its stale/failure state, and leave
+Reload available for recovery. Reload goes through the same unsaved-navigation
+guard as route changes.
+
+Destructive page actions use `destructiveActions`; never put a danger action in
+`contextActions` or the ordinary primary group. Core renders a persistent
+visual and semantic boundary before this group. In an editor it precedes the
+Discard/Save pair, keeping Save in the final keyboard and visual position.
+
+`PageActionBar` controls non-editor placement and owns the standard editor
+persistence buttons. Other actions continue to use central
+`Button`, `IconButton`, or `TableActionGroup` components. When an action is
+visible but unavailable because of permission, target, policy, state, or
+validation, keep it in its stable slot and supply `disabledReason`. Do not
+silently hide a normally applicable action.
+
+## Forms and Dialogs
+
+- Compose forms from `FormLayout`/`FormGrid`, `FormSection`, and `FormField`.
+- Use `FieldLabel` through `FormField` for every field that is not genuinely
+  self-explanatory; record justified omissions in the owning UI ledger.
+- Use `Dialog`, `DialogForm`, `DialogSection`, and `DialogActions` for modal
+  work. A dialog can be domain-specific while its anatomy remains central.
+- Use `useUnsavedDraftGuard` for explicit Discard and guarded navigation on an
+  editable page or dialog.
+- Explain irreversible or operationally consequential actions before the
+  commit button, including reversibility and durable evidence.
+
+## Collections and Details
+
+- Use `FilterBar` for collection query controls and `DataGrid` for tabular
+  collections. Keep a single ordered `TableActionGroup` action set per table.
+- Use `MetricGrid`/`MetricCard` for summary measures, `Card` or
+  `ContentSection` for logical sections, and `DescriptionList` for labelled
+  facts.
+- Add a `MetricCard.drilldown` only when the displayed measure has a useful,
+  authorized underlying collection or detail. Name the destination explicitly
+  (for example, “Review failed deliveries”) and preserve the current scope and
+  filters in its `href` or action. The card itself remains non-interactive so
+  the action is visible and keyboard-predictable. Derived, privacy-suppressed,
+  non-enumerable, or purely informational aggregates remain plain metrics;
+  when an ordinarily available drill-down is temporarily blocked, keep its
+  action and provide `disabledReason`.
+- Preserve loaded data after a refresh failure and mark it stale; offer Reload
+  as the recovery action. Distinguish initial loading, empty, unavailable,
+  permission-blocked, conflict, success, and retry states.
+
+## Review Evidence
+
+Every new or changed page or workspace pane must have structural evidence for
+its frame, semantic archetype/scope and slot order, refresh declaration, shared
+component usage, stable disabled actions, dirty guard, destructive boundary,
+and module-owned help identity. Type checks enforce conditional Reload and
+editor persistence props. The product check discovers all consumers, rejects
+undeclared archetypes and `ActionToolbar` panel-header copies, and requires
+semantic actions for every `WorkspaceFrame` route. Browser conformance confirms
+keyboard order, lifecycle changes, accessibility, destructive separation,
+narrow wrapping, and screenshot geometry.
@@ -126,6 +126,27 @@ When the capability is absent, modules must not silently emulate cross-scope
 inheritance. Their conservative fallback is limited to local tenant
 definitions and disables reuse, derivation, and automation.

+## Bounded Impact-Subject Providers
+
+Policy impact previews discover optional subject providers through capability
+names beginning with `policy.impactSubjects.`. The suffix is the stable
+provider ID; for example, Views contributes `policy.impactSubjects.views`.
+Providers implement `PolicyImpactSubjectProvider` and receive a
+`PolicyImpactPopulationRequest` containing the active tenant, policy family,
+an explicit selector, actor scopes, detail-disclosure decision, and a limit of
+at most 500. They return `PolicyImpactSubjectBatch` with unique opaque subject
+references and an explicit `complete`, `sampled`, `truncated`, or `unavailable`
+state. An unavailable batch must explain the gap, and a total may never be
+smaller than the returned subject count.
+
+Core does not scan module data or evaluate domain policy. The owning module
+selects and permission-filters its candidates; Policy compares the current and
+proposed decisions and controls response disclosure. A caller must select one
+or more provider populations explicitly. This preserves optional-module
+boundaries and prevents a seemingly harmless preview from becoming an
+unbounded platform query. Providers must not include credentials, secrets, or
+unfiltered cross-tenant labels in subject attributes.
+
 ## Frontend Contract

 Policy UIs must:
@@ -138,6 +159,9 @@ Policy UIs must:
  lower-level limit to `false`
 - avoid sending locked fields or re-enable attempts in save payloads
 - show inherited values separately from local overrides
+- require a current impact preview before enabling a governed high-impact save,
+  preserve its proposal hash on commit, and explain incomplete population
+  coverage rather than presenting unavailable providers as zero impact

 The core WebUI helper `privacyRetentionParentAllowsField()` centralizes the
 field-lock decision used by the retention editor and its lightweight module
@@ -1,9 +1,12 @@
 # Postbox End-To-End Encryption Architecture

-This document records the strategic encryption target for GovOPlaN postboxes.
-It does not require the first postbox implementation to ship full E2EE, but it
-defines the architecture so early data models and APIs do not make the stronger
-model impossible.
+This document records the encryption boundary for GovOPlaN postboxes. Postbox
+now implements the server-side contracts for three selectable profiles:
+unencrypted content, institution-managed server envelopes, and externally
+produced E2EE envelopes. The E2EE contract is operational—the server rejects
+plaintext and retains ciphertext, signed manifests, wrapped keys, and digest
+evidence—but a reviewed browser/device client and private-key custody provider
+remain separately deployed responsibilities.

 The core principle is that a postbox can become a trusted administrative
 communication channel without requiring the server to see plaintext content.
@@ -35,6 +38,54 @@ Algorithm choices should remain replaceable behind a crypto profile. The first
 profile should prefer standard, reviewed primitives such as HPKE for key
 wrapping and AEAD encryption for content.

+## Product Profiles And Default
+
+The content-protection policy is configurable per exact Postbox or immutable
+template revision:
+
+- `server_envelope_v1` is the recommended default. An institution-selected
+  Encryption vault controls server-readable envelopes and their migration
+  evidence. It is not end-to-end encryption.
+- `external_e2ee_v1` is server-blind. An approved client or producer supplies
+  the ciphertext reference, signed manifest, wrapped recipient keys, key epoch,
+  and SHA-256 plaintext digest. GovOPlaN has no private key that can decrypt it.
+- `plaintext_v1` stores clear content for institutions that explicitly choose
+  that boundary.
+
+Operational metadata—including subject, routing, participants,
+classifications, timestamps, attachment references, receipts, and retention
+state—remains visible under every profile. Administrators therefore choose a
+content-protection boundary, not a metadata-anonymity profile.
+
+The standard policy grants new incumbents history since assignment, uses key
+rewrapping for ordinary rotation and content re-encryption after compromise,
+requires two-person institutional recovery and dual-control hand-over,
+emergency, export, and destruction, requires strong external identity, and
+limits vacancy escalation to metadata. Deployments may select other policy
+values rather than inheriting a decision from GovOPlaN.
+
+## Governed Profile Changes
+
+A profile transition applies to new messages immediately and increments the
+Postbox key epoch. Retained history can remain under the previous profile or be
+migrated. The transition ledger records source and target profiles/vaults,
+authority route, consent and key-holder evidence, quorum, reason, immutable
+configuration snapshot, per-message source and target digest, and outcome.
+
+Plaintext and managed-envelope migrations can use the server-side Encryption
+capability. Managed decrypt, export, and re-encryption operations also create
+Encryption migration records so old envelopes are disposed of through the
+governed provider contract. Any transition to or from E2EE pauses each retained
+message for an approved client transform. The client must return plaintext or
+ciphertext as appropriate, plus evidence and the original content digest;
+Postbox verifies digest continuity before changing the stored representation.
+Leaving E2EE requires user-consent evidence, while changing managed history
+requires institutional key-holder evidence. Dual control can require both.
+
+This transition mechanism cannot revoke plaintext already decrypted, copied,
+printed, or exported. Administrators must explicitly acknowledge that residual
+disclosure before a transition is accepted.
+
 ## Identity And Device Keys

 The platform should distinguish:
@@ -141,6 +141,73 @@ connector or module issue.
 - Owner/priority: `govoplan-mail`, `govoplan-calendar`,
  `govoplan-connectors`, Wave 1/2.

+#### Collaboration-suite boundary and hand-offs
+
+Collaboration remains connector-first. The product named below never changes
+which GovOPlaN module owns the administrative meaning of the work:
+
+| External family | Initial posture | GovOPlaN semantic owner | Connector-owned boundary |
+| --- | --- | --- | --- |
+| Collabora Online, OnlyOffice, Nextcloud Office | Link an externally edited document and its editing session; import a governed rendition only when required | DMS owns document/version, lock, review, approval, retention, and collaboration-session evidence; Files owns stored bytes | Discovery, endpoint health, WOPI/vendor session exchange, callbacks, and provider object references |
+| Matrix, Mattermost, Rocket.Chat, Nextcloud Talk | Create or link a room/thread for a governed work context; do not mirror all conversation history by default | The initiating Case, Workflow, or Task owns the work-context link and disposition; DMS/Records own retained evidence deliberately captured from it | Room/thread creation, membership synchronization, webhook/event normalization, and stable external links |
+| Jitsi and BigBlueButton | Provision or link a conference for an existing appointment/event | Appointments owns booking intent; Calendar owns event, attendee, invitation, and time semantics | Conference provisioning, join/moderator references, provider lifecycle, and bounded attendance/result callbacks |
+| OpenProject and comparable project suites | Link first, then publish or synchronize selected work packages | Tasks owns GovOPlaN task state; Workflow owns orchestration; Cases own case state and evidence references | Project/work-package lookup, publish/synchronize transport, webhooks, version tokens, and external URLs |
+| Cross-suite activity streams | Consume normalized, bounded events only for an authorized work context | The receiving module decides whether an event changes state or becomes evidence; Audit records the GovOPlaN operation | Provider subscriptions, cursor/checkpoint handling, signature validation, event normalization, and replay protection |
+
+Native collaboration behavior is justified only when GovOPlaN must own the
+semantic state, authorization decision, audit evidence, retention/legal-hold
+rule, or configuration-package fragment. Endpoint profiles, tokens, health,
+protocol clients, provider IDs, retries, and webhook transport remain in
+Connectors (or the owning protocol connector). A feature module consumes a
+Core capability/DTO and must still start and fail explicitly when that optional
+connector is absent; it never imports a provider client.
+
+The minimum hand-off sequences are:
+
+1. **Appointment to conference:** Appointments confirms the booking intent;
+   Calendar creates or updates the event and invitations; an optional
+   conference connector provisions the room idempotently and returns an
+   opaque join reference. Calendar stores that reference with the event, not
+   the provider credential.
+2. **Case or Workflow to collaborative document:** the initiating module asks
+   DMS for a governed document/session; DMS requests an optional office-suite
+   connector session and retains version, lock, approval, and callback
+   evidence. The Case/Workflow keeps only the DMS reference.
+3. **Case, Workflow, or Task to chat:** the semantic owner requests a room or
+   thread with an idempotency key and bounded membership intent. The connector
+   returns an external reference; capturing messages as evidence requires an
+   explicit DMS/Records action and policy decision.
+4. **Task or Workflow to project suite:** Tasks supplies the task payload and
+   Workflow supplies correlation; the OpenProject connector publishes or
+   reconciles the work package and returns versioned external-reference and
+   retry/conflict evidence. Neither consumer writes connector tables.
+
+Every executable collaboration connector must pass the common connector
+contract checks plus a provider-focused minimum proof:
+
+- optional-module startup and partial compositions work without the provider;
+- profile health uses secret references and redacts credentials and remote
+  response bodies;
+- tenant/resource authorization is checked before discovery, provisioning,
+  lookup, synchronization, or evidence capture;
+- dry-run/simulation performs no remote mutation and explains unsupported
+  operations;
+- create/publish calls are idempotent, retries preserve the same external
+  reference, and outcome-unknown or version conflicts remain reconcilable;
+- callbacks/webhooks verify authenticity, tenant/profile binding, replay
+  protection, and bounded payloads;
+- disable/retire behavior revokes new use while preserving non-secret audit and
+  external-reference evidence;
+- Collabora/OnlyOffice prove discovery plus one non-production editing-session
+  round trip; Matrix/Mattermost/Rocket.Chat prove room lookup/create plus one
+  authenticated bounded event; Jitsi/BigBlueButton prove conference
+  provision/cancel; OpenProject proves project/work-package lookup, idempotent
+  publish, and conflict handling.
+
+These are connector acceptance tests, not a claim that those connectors are
+already implemented. Their implementation state remains in the owning
+connector issues and catalogue.
+
 ### Payment And Public Cashier Systems

 - Strategy: integrate/export/import; keep the payment provider or cashier as
@@ -0,0 +1,94 @@
+# Records Filing Contract
+
+Core exposes a small provider-neutral contract for filing exact source
+revisions into an institutional record. Core does not own records semantics,
+source-object authorization, or source bytes. `govoplan-records` owns filing
+orchestration and chronology; each source module owns resolution of its exact
+revision.
+
+## Capability Names
+
+- `records.filing` is supplied by the enabled Records module.
+- `records.source.<module>` is supplied by an enabled source module, for
+  example `records.source.files` or `records.source.cases`.
+- `records.archive.<provider>` is supplied by an enabled archive-transfer
+  adapter. Discovery does not imply conformance or current health.
+
+Callers discover capabilities through the module registry. They must not
+import optional source-module internals.
+
+## Exact Source Identity
+
+`RecordSourceLocator` identifies one tenant, source module, resource type,
+resource ID, and immutable source revision. A source provider must:
+
+1. reject cross-tenant resolution;
+2. require a non-empty purpose;
+3. re-evaluate the caller's current module and object authorization;
+4. resolve exactly the requested revision, never a mutable "current" alias;
+5. return safe display/provenance metadata and a SHA-256 digest when the source
+   has stable bytes or a canonical snapshot;
+6. fail closed when the revision is missing, quarantined, corrupt, or no longer
+   authorized.
+
+Historical Records browsing never revives historical access rights. The
+source's current authorization decision remains authoritative when filing.
+
+## Filing Semantics
+
+`RecordFilingRequest` binds the exact source to a record, purpose, filing
+reason, relationship, institutional context, and idempotency key. Records must
+persist source identity and resolution evidence together with the filing actor,
+represented capacity, valid time, recorded time, and immutable chronology.
+
+An idempotency key may replay only an identical request. A conflicting reuse
+must fail. Filing does not transfer ownership of source content and must not
+silently copy mutable source state.
+
+## Versioning
+
+The Python DTOs and protocols live in `govoplan_core.core.records`. The
+manifest interface `records.filing` starts at `1.0.0`. Incompatible DTO or
+behavior changes require a new interface version and release impact analysis;
+additional optional metadata remains backward compatible.
+
+## Initial Providers
+
+- Files resolves an exact managed `FileVersion`, verifies current Files access
+  and blob integrity, and returns its stored content digest.
+- Cases resolves an exact immutable case revision after current case access and
+  returns a digest of the canonical revision snapshot.
+
+Provider-specific selection UI belongs to the source module. The generic
+Records dialog remains a diagnostic/manual fallback for exact identifiers.
+
+## Archive Transfer Boundary
+
+`RecordTransferPackage` binds a stable package ID, record revision, provider
+profile, canonical manifest, and manifest SHA-256. An archive provider exposes
+`RecordArchiveProviderState` before dispatch and accepts only a
+`RecordArchiveTransferRequest` for a declared healthy profile. Its receipt must
+identify the same package and provider and return one bounded outcome:
+`accepted`, `rejected`, or `outcome_unknown`.
+
+An unknown outcome is never retry-safe. Callers must retain the intent and
+reconcile it against the provider before another effect. Provider state also
+declares authority mode, freshness, limitations, and whether the provider is a
+simulation. Credentials, transport configuration, archive-specific package
+schemas, and custody semantics remain provider-owned.
+
+Records includes `records.archive.simulation` to prove package and receipt
+handling. The simulation is explicitly non-conformant, transfers no custody,
+and cannot be used as evidence of an archive handoff. A real provider requires
+a selected target/profile, provider-specific recovery declaration, and target
+test evidence.
+
+## Form Evidence Boundary
+
+Form attachments use the separate provider-neutral contract in
+`govoplan_core.core.form_evidence`. Forms Runtime requests short-lived,
+purpose-bound upload grants and re-inspects the exact provider-owned evidence
+before final submission. The provider keeps byte storage, quarantine,
+classification, and retention ownership; Forms Runtime stores only immutable
+evidence references and bounded verification results. This contract is not an
+alternative path for Records filing or archive custody.
@@ -197,6 +197,13 @@ If both file and URL are set, the URL wins. The cache is used when a remote
 fetch fails, so an operator can still inspect the last known catalog. A cached
 catalog must still pass signature, freshness, channel, and replay validation.

+If neither source is configured, the Admin package directory discovers the
+official public stable catalog at
+`https://govoplan.add-ideas.de/catalogs/v1/channels/stable.json`. Core verifies
+that fallback against the public key pinned in the installed Core package. An
+explicit deployment catalog always takes precedence; a configured source that
+is unavailable or invalid fails closed instead of silently falling back.
+
 An official catalog is a JSON object with:

 - `catalog_version`
@@ -212,6 +219,14 @@ Each module entry can declare:

 - backend package name and pinned install reference
 - WebUI package name and pinned install reference
+- `artifact_integrity` for each package, including the HTTPS registry URL,
+  filename, byte size, SHA-256, package identity, source tag, and source commit
+- `source`, binding the repository and immutable tag/commit identity, with
+  optional HTTPS repository and revision links
+- `availability`, either `available` or `withdrawn`; a withdrawn entry must
+  carry an operator-readable `availability_reason` and cannot be planned
+- `configuration_requirements` and an optional HTTPS `release_notes_url` for
+  prerequisites and release-specific operator guidance
 - display metadata and tags
 - `license_features`, the feature entitlements required to plan that install
 - `dependencies` and `optional_dependencies`, the module ids expected in the
@@ -239,6 +254,12 @@ Each module entry can declare:
 - `requires_interfaces`, named interface contracts and version ranges required
  by this module

+Core validates these fields before exposing the directory. Admin derives a
+read-only catalog state from the installed package set, catalog dependency
+closure, named-interface providers, current-version window, availability, and
+generic license policy. This is an early operator diagnostic; trusted installer
+preflight remains the authoritative mutation gate.
+
 The signature is Ed25519 over canonical JSON with both `signature` and
 `signatures` removed. Core accepts the legacy single `signature` field and the
 new `signatures` array.
@@ -302,6 +323,12 @@ Catalog provenance changes preflight severity:
  plans, so operators can still use offline or emergency package refs
 - valid-catalog warnings, such as intentionally unsigned local catalogs when
  signature enforcement is disabled, remain warnings
+- a saved catalog plan must match the currently validated entry exactly;
+  altered package refs, artifact identities, channel, sequence, trust state, or
+  signing-key identity block the run and require replanning
+- a trusted remote artifact is downloaded before mutation into a private
+  SHA-256-addressed installer cache, checked for exact size and digest, and
+  passed to `pip` or npm only as that verified local file
 - selected catalog entries with unsatisfied non-optional named interface ranges
  block activation before the installer runs
 - selected catalog entries whose target dependencies are neither installed nor
@@ -519,6 +546,11 @@ Catalog entries can require license features:
 Core checks those requirements against an offline license file before allowing
 the entry into the install plan.

+Official open-source GovOPlaN entries do not declare license features. The
+license contract remains generic for external catalogs, deployment presets,
+configuration/package directories, and support offerings; it gates only an
+entry that explicitly asks for a feature.
+
 ```bash
 GOVOPLAN_LICENSE_FILE=/srv/govoplan/license.json
 GOVOPLAN_LICENSE_ENFORCEMENT=true
@@ -12,4 +12,4 @@ tools/checks/security-audit/run.sh --mode full --scope govoplan

 Canonical documentation:

- `/mnt/DATA/git/govoplan/docs/SECURITY_AUDIT.md`
+- `/mnt/DATA/git/govoplan/docs/operations/SECURITY_AUDIT.md`
@@ -0,0 +1,118 @@
+# Semantic Documentation Subjects
+
+## Purpose And Ownership
+
+The semantic-documentation subject contract lets an optional module expose the
+configured artifacts that administrators may document: for example a form, a
+form field, a workflow, or a workflow state. It is a discovery and resolution
+contract, not a second configuration API.
+
+The module that owns an artifact also owns its subject provider, authorization,
+identity, revision, route, and lifecycle semantics. Docs may discover those
+providers through Core and attach authored documentation to their stable
+references. Docs must not import the feature module, read its tables, or copy
+configuration content into a generic index.
+
+This contract is additive to manifest `DocumentationTopic` contributions and
+configured-state `documentation_providers`. Every providing module must retain
+static user and administrator documentation baselines. The baselines explain
+the feature even when the provider is disabled, unavailable, or has no
+configured subjects.
+
+## Identity And Versioning
+
+`SemanticDocumentationSubjectReference` identifies a subject with:
+
+- owning module and tenant;
+- a module-defined subject kind and stable identifier;
+- an optional typed nested anchor, such as `field/registration-number`;
+- the revision and canonical fingerprint observed when documentation was
+  authored or reviewed.
+
+The `stable_key` derives only from identity. A rename or configuration revision
+therefore does not detach existing documentation. A nested anchor has its own
+identity so a field can be documented independently from its form.
+
+Providers must resolve an old reference as one of:
+
+- `available`: the observed revision/fingerprint is still current;
+- `changed`: the same stable subject has changed and may need review;
+- `superseded`: another stable reference replaced it;
+- `missing`: the subject was removed or is no longer resolvable;
+- `temporarily_unavailable`: the provider cannot currently determine state.
+
+Absence is not authorization. A provider returns `None` when the principal may
+not learn whether a subject exists. Core also rejects cross-tenant list and
+resolution requests before calling a provider.
+
+## Safe Projection
+
+Descriptors contain only bounded, explicit presentation fields: localized
+labels and descriptions, breadcrumbs, a local route, audience,
+classification, and required scopes. They must not contain credentials,
+personal data, arbitrary provider metadata, configuration payloads, or the
+authored documentation itself. Routes are application-local and are still
+subject to normal route authorization.
+
+The fingerprint is a review signal, not a concurrency token or a content hash
+that callers may use to reconstruct configuration. Providers should calculate
+it from the smallest canonical JSON projection whose semantic changes require
+documentation review. Volatile timestamps and secrets must be excluded.
+
+## Provider Registration
+
+A provider is registered under its exact module-scoped capability name:
+
+```python
+from govoplan_core.core.modules import CapabilityDocumentation
+from govoplan_core.core.semantic_documentation import (
+    SEMANTIC_DOCUMENTATION_SUBJECT_CONTRACT_VERSION,
+    semantic_documentation_subject_capability,
+)
+
+capability = semantic_documentation_subject_capability("forms")
+
+manifest = ModuleManifest(
+    id="forms",
+    # ...
+    capability_factories={capability: build_semantic_subject_provider},
+    capability_documentation={
+        capability: CapabilityDocumentation(
+            label="Form semantic subjects",
+            summary="Lists authorized configured forms and fields for Docs.",
+            contract_version=SEMANTIC_DOCUMENTATION_SUBJECT_CONTRACT_VERSION,
+            documentation_types=("admin", "user"),
+        )
+    },
+    documentation=(admin_baseline, user_baseline),
+)
+```
+
+The capability is `documentation.semantic_subjects.<module_id>`. Registry
+validation rejects a mismatched owner, missing capability documentation, a
+wrong contract version, or missing static baselines.
+
+`list_semantic_documentation_subjects` performs authorized, paginated discovery
+across installed providers. `resolve_semantic_documentation_subject` targets
+one owner without loading another feature module. Providers must apply the
+current tenant and principal on every call and must not infer visibility from a
+previous list result.
+
+## Lifecycle And Integration Rules
+
+- Keep subject and anchor identifiers stable across display-name and route
+  changes.
+- Return `superseded` only with the replacement reference; do not silently
+  rewrite stored references.
+- Return a reason code for missing or temporarily unavailable subjects without
+  exposing sensitive detail.
+- Reauthorize both discovery and resolution. Stored documentation references
+  confer no access to a live artifact.
+- Treat a changed fingerprint as a request for editorial review. It does not
+  automatically invalidate or publish authored documentation.
+- Removing a feature module leaves references resolvable as provider
+  unavailable. Docs can preserve history without importing the module.
+
+Forms, Workflow, and later modules should implement their subject providers in
+their own repositories. Docs owns the authored semantic-documentation records,
+review workflow, and projection UI.
@@ -93,10 +93,17 @@ Alembic, and post-migration tasks. The lock is session-scoped and therefore
 released if the migration process dies.

 Runtime roles run `govoplan_core.commands.wait_for_database`. It waits until
-the database has exactly the configured Core/module Alembic heads and never
-upgrades schema. This permits a migration Job and runtime Deployments to be
+the database has exactly the configured, dependency-resolved Core/module
+Alembic heads and never upgrades schema. Cross-module `depends_on` revisions
+therefore do not leave runtime roles waiting for a branch marker Alembic has
+correctly consumed. This permits a migration Job and runtime Deployments to be
 submitted together while keeping startup fail-closed.

+Runtime coordination records the installed `govoplan-core` distribution
+version for API, worker and scheduler roles. FastAPI/OpenAPI metadata versions
+are presentation metadata and must not be used as deployable software identity;
+mixing the two would create a false version-skew readiness failure.
+
 ## Recovery Ledger

 `govoplan_core.core.recovery` provides a durable operation and evidence
@@ -133,7 +140,7 @@ Core does not create production database backups. The deployment owner must
 provide backup, retention, encryption, restore verification, and recovery-point
 coordination for PostgreSQL, object storage, and encryption keys. The canonical
 operator procedure is documented in
-`govoplan/docs/RECOVERY_AND_ROLLBACK_GUARANTEES.md`.
+`govoplan/docs/operations/RECOVERY_AND_ROLLBACK_GUARANTEES.md`.

 ## Verification

@@ -0,0 +1,68 @@
+# Temporal Data Context
+
+GovOPlaN exposes one read context for data validity and system knowledge. The
+calendar control in the authenticated titlebar applies that context to
+supported list and detail reads for the current account and tenant.
+
+## Two Independent Axes
+
+- **Valid time** answers when a fact applied in the represented domain.
+- **Recorded time** answers what the system had recorded by a particular
+  instant.
+
+The default is data valid now under the latest recorded state. `At time`
+selects a valid-time instant. `All` removes the valid-time interval filter but
+still uses the selected recorded state. The optional recorded-state cutoff can
+be combined with any valid-time mode, which keeps correction history distinct
+from changes in real-world validity.
+
+An interval is half open: `valid_from <= instant < valid_to`. A revision belongs
+to a recorded-state snapshot when `recorded_at <= cutoff` and it was not
+superseded at or before that cutoff.
+
+## Security And Mutation Rules
+
+The temporal data context is a read projection, not an authorization context.
+Authentication, permissions, active delegations, tenant boundaries, module
+policy, and maintenance controls are always evaluated under current security
+state. A historical projection never restores an expired permission.
+
+The context also does not supply mutation dates. Writes continue to target the
+current lifecycle revision and must carry their explicit valid/effective dates,
+expected revision, reason, and evidence where the owning contract requires
+them. A screen showing historical data must not silently turn a normal edit
+into a historical correction.
+
+## HTTP Contract
+
+Core accepts these request headers:
+
+| Header | Meaning |
+| --- | --- |
+| `X-Govoplan-Validity-Mode` | `current`, `at`, or `all` |
+| `X-Govoplan-Valid-At` | Timezone-aware ISO 8601 instant required by `at` |
+| `X-Govoplan-Recorded-At` | Optional timezone-aware system-knowledge cutoff |
+
+Invalid or naive timestamps fail with HTTP 400. Responses expose the resolved
+mode and evaluated instant. Conditional JSON responses vary by all three
+request headers, and the shared WebUI API client includes them in request
+deduplication and conditional-cache keys.
+
+## Module Adoption
+
+Revision-owning modules apply
+`govoplan_core.db.temporal.apply_temporal_revision_filter` only to read queries
+that are meant to follow the platform context. Explicit version references and
+explicit resolver `effective_at` arguments take precedence. Current-row
+lookups used for optimistic concurrency, authorization, routing, effects, or
+other mutations must remain explicit and context-independent.
+
+The initial bitemporal adoption covers Decisions, Mandates, Parties, and
+Services. Their immutable revisions have indexed valid, recorded, and
+superseded timestamps. Modules with effective-dated security records or
+recorded-only revision histories require separate display-query adoption so
+the global selector cannot affect current authorization or execution.
+
+The WebUI selection is stored in session storage per account and tenant. A
+change remounts the active module route so existing page loaders issue a fresh
+request. Returning both axes to their defaults removes the stored selection.
@@ -4,6 +4,9 @@ GovOPlaN supports `system`, `light`, and `dark` as persisted user preferences.
 `system` follows `prefers-color-scheme` live; it is not resolved permanently at
 save time. Core applies the resolved mode through `data-theme` on the document
 root and exposes the selected preference through `data-theme-preference`.
+Each user may also choose a validated `default`, `civic_blue`, `forest`, or
+`plum` accent palette. Core applies it through `data-palette`; every module
+inherits the result through semantic tokens without module-specific CSS.

 ## Ownership

@@ -12,17 +15,42 @@ root and exposes the selected preference through `data-theme-preference`.
 - Modules consume semantic tokens such as `--surface`, `--text`, `--line`, and
  the status token families. They may define domain aliases whose values resolve
  to shared tokens.
- User preference selects the mode. Tenant and system policy may provide a
-  future default, but must not silently replace an explicit user choice.
- Tenant branding is a separate policy surface and must preserve contrast and
-  status semantics in both modes.
+- Palette defaults form a provenance chain: system, tenant, then an explicit
+  user choice. Invalid stored values are ignored. Reset means inheritance and
+  does not copy the current parent value into the child scope.
+- A policy lock is separate from the default. A system lock wins over every
+  child scope; otherwise a tenant lock suppresses a personal override. The
+  authenticated profile reports the effective palette, source, inherited
+  palette, and lock state.
+- Advanced personal overrides are a separately governed surface. The system
+  must opt in, a tenant may inherit or block that decision, and palette locks
+  always suppress overrides. Changing either policy requires
+  `admin:policies:write` in addition to the owning settings permission.
+
+## Palette safety and scope
+
+The Settings preview shows the chosen or inherited accent in every applicable
+light/dark preview before Save. Presets are checked for WCAG AA contrast in the
+theme contract. When policy permits, the shared advanced editor can atomically
+override accent, surface, and semantic status pairs for both modes. Every
+foreground/background pair must meet WCAG AA contrast, and success,
+information, warning, and danger colors must remain distinct. Invalid stored
+documents fail closed and are not partially applied.
+
+Import and export use the exact versioned JSON schema `schema_version: "1"`.
+Both `light` and `dark` must contain every supported token exactly once as a
+six-digit hex value. Import changes only the local draft; Save persists the
+whole document. Removing overrides returns to palette and policy inheritance.
+The system default is disabled so upgrades do not unexpectedly admit arbitrary
+branding. Tenant `null` means inherit, `false` blocks, and `true` is accepted
+only while the system permits overrides.

 Do not introduce fixed foreground/background colors in a module merely to make
 one mode look correct. Add or reuse a semantic Core token, then define both
 light and dark values. Bitmap content and externally authored HTML are exempt,
 but their surrounding controls must still use the shared tokens.

-`npm run test:theme-contract` verifies the root behavior and representative
+`npm run test:theme-contract` verifies root mode/palette behavior, preset and
+custom-override validation/application, and representative
 Campaign, Calendar, Files, and Mail token consumption. The check runs before a
 production WebUI build.
-
@@ -51,10 +51,14 @@ contestability, responsibility, and traceability at the point of action.
 | UX-025 | `window.alert` and the global `alert` function are prohibited. A narrowly necessary exception requires product-owner authorization and an entry in the alert exception register before implementation. | Accepted | All WebUI code |
 | UX-026 | A table defines one stable ordered action set. A row-level unavailable action remains in its normal position and is disabled, preferably with `disabledReason`; structurally irrelevant actions are omitted for the entire table. Empty rows reserve the same slots so their Add action stays in the normal left-most action position. | Accepted | All structured tables |
 | UX-027 | The platform icon rail keeps its brand header and utility footer visible. Only the module-navigation region scrolls when installed and permitted modules exceed the available viewport height. | Accepted | Core WebUI shell |
-| UX-028 | Maintenance and offline state change the titlebar surface and repeat a quiet status label behind its controls. They must not replace, cover, or intercept the centered global-search surface; an accessible status control remains in the leading titlebar area. | Accepted | Core WebUI shell |
+| UX-028 | Maintenance and offline states use their established textual warning banners centered in the titlebar. They must not recolor the shell or add decorative status icons. Global search is a right-side command, so warnings do not replace its trigger or overlay. | Accepted | Core WebUI shell |
 | UX-029 | Recoverable page and module errors use the central compact `DismissibleAlert` presentation with an explicit recovery action where one exists. Full-height workspaces must overlay page feedback instead of allowing an alert to become a stretched workspace row. | Accepted | Core and module WebUIs |
 | UX-030 | At narrow widths, the titlebar uses separate context and command rows. Context selectors remain horizontally reachable, search retains its compact trigger, and language/help/notification/account commands remain fixed icon controls without overlap. Shared content padding contracts so domain workspaces retain usable width. | Accepted | Core WebUI shell and all module workspaces |
 | UX-031 | Public controls and extension contributions use stable, module-namespaced interface identities. Shared controls expose `interfaceId` and `helpTopicId`; generated source anchors are inventory evidence, not a substitute for an explicit ID when documentation, policy, or automation refers to the control. | Accepted | Core and module WebUIs |
+| UX-032 | `F1` resolves help from the focused field or action, then its dialog/section/page and registered route. Focused contexts retain the page fallback; Docs applies audience and permission filtering and falls back to visible module documentation. | Accepted | Core shell, Docs, and all module WebUIs |
+| UX-033 | Global search is the left-most titlebar command, immediately before language selection. Its icon, `F3`, and `Ctrl`/`Cmd`+`K` all open the same permission-aware search overlay; the titlebar does not reserve a persistent query field. | Accepted | Core shell and Search WebUI |
+| UX-034 | Every headed `PageLayout` declares one of `overview`, `collection`, `detail`, `editor`, or `workspace` independently from its standalone/workspace/embedded geometry. Its actions use the matching semantic `PageActionBar`: a refreshable page must provide Reload in the leading slot; collections keep Create far right; read-only pages do not invent Save. | Accepted | Core and all module WebUIs |
+| UX-035 | Editor action bars expose clean, dirty, and saving state; always retain Discard immediately before the far-right Save; centrally disable both while clean or saving; and participate in the unsaved-change navigation guard. Danger actions occupy the explicit separated destructive group after ordinary actions and before editor persistence. | Accepted | Core and all module WebUIs |

 ## Confirmed Implementation Decisions

@@ -161,14 +165,19 @@ Decision: the WebUI shell exposes a small, stable appearance contract based on
 shared CSS tokens and persisted user preference selection.

 - Core applies `system`, `light`, and `dark` preferences at the document root.
+- Core applies validated user accent presets through `data-palette`; palette
+  values change semantic tokens globally and never require module CSS changes.
 - Core owns shared tokens such as `--bg`, `--bar`, `--panel`, `--surface`,
  `--line`, `--line-dark`, `--text`, `--text-strong`, `--muted`, semantic
  status colors, radii, shadows, and disabled-control colors.
 - Modules must style new UI with these tokens and shared controls. Module-local
  CSS may tune layout and spacing, but it must not introduce a separate
  appearance system.
- Appearance controls live in user settings first. Tenant defaults and policy
-  enforcement can be added later without changing the token contract.
+- Appearance controls live in user settings. A personal palette wins over
+  unlocked tenant and system defaults; system and tenant locks take precedence.
+  Advanced personal token overrides additionally require system opt-in and may
+  be narrowed by tenant policy. Their versioned import/export document is
+  validated and applied all-or-nothing in both light and dark modes.
 - Visual preview in settings is illustrative; it must reflect token families,
  not become a second theme implementation.

@@ -319,7 +328,7 @@ converted or reviewed.
 | Configuration packages | `govoplan-admin` | Catalog/import work exists, but package editing can still drift toward technical fields. | Add guided import/review/problem-list flow. |
 | Retention and privacy | `govoplan-core` | Typed effective-policy editor exposes source paths, narrowing semantics, platform locks, permission/target blockers, and explicit clean/loading/save states. | Broader governed-change review remains module-owned where a policy change requires approval. |
 | API keys | `govoplan-access` / admin UI | Security-sensitive creation needs least-privilege guidance. | Add scoped creation wizard with expiry/owner review. |
-| User settings | `govoplan-core` | Simple typed sections use unsaved-change guards, quiet result feedback, contextual help, and explicit busy/clean disabled-action reasons. | Keep bounded; new contributed sections must satisfy the checklist. |
+| User settings | `govoplan-core` | Simple typed sections use unsaved-change guards, quiet result feedback, contextual help, explicit busy/clean disabled-action reasons, and an effective appearance source. Palette selection and light/dark preview are shared with system and tenant administration. | Keep bounded; new contributed sections must satisfy the checklist. |

 ## Impact Index

@@ -335,7 +344,7 @@ converted or reviewed.
 | Automation/workflow commands | Hidden side effects would undermine accountability. | Action/effect preview, system-actor display, command record, retry/quarantine/manual states, and audit links. |
 | Postbox and encrypted communication | Retraction and access can be misunderstood. | Honest key-fetch/decryption state, expiry limits, recipient/device access provenance, and delivery evidence. |
 | API keys | Security-sensitive creation and scope selection. | Scoped creation wizard, least-privilege suggestions, clear expiry/owner explanation. |
-| User settings | Needs clarity and persistence across profile/interface/preferences. | Simple settings sections with immediate feedback and no double-click navigation traps. |
+| User settings | Needs clarity and persistence across profile/interface/preferences. | Simple settings sections with immediate feedback, explicit inherit/reset semantics, effective-source provenance, and no double-click navigation traps. |

 ## Review Checklist

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"

 [project]
 name = "govoplan-core"
-version = "0.1.15"
+version = "0.1.25"
 description = "Reusable GovOPlaN platform core, access, tenancy, and RBAC components."
 readme = "README.md"
 requires-python = ">=3.12"
@@ -15,7 +15,7 @@ dependencies = [
  "fastapi>=0.139,<1",
  "pydantic>=2,<3",
  "pydantic-settings>=2,<3",
-  "cryptography>=48.0.1,<50",
+  "cryptography>=50.0.0,<51",
  "celery>=5,<6",
  "redis>=5,<6",
  "alembic>=1,<2",
@@ -26,7 +26,7 @@ dependencies = [
 where = ["src"]

 [tool.setuptools.package-data]
-govoplan_core = ["py.typed"]
+govoplan_core = ["py.typed", "resources/*.json"]

 [tool.setuptools.data-files]
 "govoplan_core_runtime" = ["alembic.ini"]
@@ -12,7 +12,7 @@ class SystemSettings(Base, TimestampMixin):
    __tablename__ = "core_system_settings"

    id: Mapped[str] = mapped_column(String(36), primary_key=True, default="global")
-    default_locale: Mapped[str] = mapped_column(String(20), default="en", nullable=False)
+    default_locale: Mapped[str] = mapped_column(String(20), default="de", nullable=False)
    allow_tenant_custom_groups: Mapped[bool] = mapped_column(Boolean, default=True, nullable=False)
    allow_tenant_custom_roles: Mapped[bool] = mapped_column(Boolean, default=True, nullable=False)
    allow_tenant_api_keys: Mapped[bool] = mapped_column(Boolean, default=True, nullable=False)
@@ -20,4 +20,3 @@ class SystemSettings(Base, TimestampMixin):


 __all__ = ["SystemSettings"]
-
@@ -3,7 +3,9 @@ from __future__ import annotations
 from datetime import datetime
 from typing import Any, Literal

-from pydantic import BaseModel, ConfigDict, Field
+from pydantic import BaseModel, ConfigDict, Field, model_validator
+
+from govoplan_core.core.appearance import normalize_appearance_overrides


 class AuditLogItemResponse(BaseModel):
@@ -84,7 +86,7 @@ class TenantInfo(BaseModel):
    slug: str
    name: str
    is_active: bool = True
-    default_locale: str = "en"
+    default_locale: str = "de"
    enabled_language_codes: list[str] = Field(default_factory=list)


@@ -93,6 +95,45 @@ class TenantMembershipInfo(TenantInfo):
    is_active: bool = True


+class NavigationPreferencesPayload(BaseModel):
+    model_config = ConfigDict(extra="forbid")
+
+    contract_version: Literal["1"] = "1"
+    order: list[str] = Field(default_factory=list, max_length=256)
+    hidden: list[str] = Field(default_factory=list, max_length=256)
+    locked: list[str] = Field(default_factory=list, max_length=256)
+
+
+class AppearanceModeOverrides(BaseModel):
+    model_config = ConfigDict(extra="forbid")
+
+    accent: str
+    accent_foreground: str
+    surface: str
+    surface_foreground: str
+    success: str
+    success_foreground: str
+    info: str
+    info_foreground: str
+    warning: str
+    warning_foreground: str
+    danger: str
+    danger_foreground: str
+
+
+class AppearanceOverridesDocument(BaseModel):
+    model_config = ConfigDict(extra="forbid")
+
+    schema_version: Literal["1"] = "1"
+    light: AppearanceModeOverrides
+    dark: AppearanceModeOverrides
+
+    @model_validator(mode="after")
+    def validate_accessibility(self) -> "AppearanceOverridesDocument":
+        normalize_appearance_overrides(self.model_dump(mode="json"))
+        return self
+
+
 class UserUiPreferences(BaseModel):
    model_config = ConfigDict(extra="ignore")

@@ -101,6 +142,20 @@ class UserUiPreferences(BaseModel):
    reduce_motion: bool = False
    sticky_section_sidebars: bool = True
    theme: Literal["system", "light", "dark"] = "system"
+    palette: Literal["default", "civic_blue", "forest", "plum"] | None = None
+    appearance_overrides: AppearanceOverridesDocument | None = None
+    navigation: NavigationPreferencesPayload | None = None
+
+
+class EffectiveAppearanceInfo(BaseModel):
+    palette: Literal["default", "civic_blue", "forest", "plum"] = "default"
+    source: Literal["user", "tenant", "system", "tenant_lock", "system_lock"] = "system"
+    locked: bool = False
+    system_default_palette: Literal["default", "civic_blue", "forest", "plum"] = "default"
+    tenant_default_palette: Literal["default", "civic_blue", "forest", "plum"] | None = None
+    inherited_palette: Literal["default", "civic_blue", "forest", "plum"] = "default"
+    custom_overrides: AppearanceOverridesDocument | None = None
+    custom_overrides_allowed: bool = False


 class UserInfo(BaseModel):
@@ -116,6 +171,7 @@ class UserInfo(BaseModel):
    preferred_language: str | None = None
    enabled_language_codes: list[str] = Field(default_factory=list)
    ui_preferences: UserUiPreferences = Field(default_factory=UserUiPreferences)
+    appearance: EffectiveAppearanceInfo = Field(default_factory=EffectiveAppearanceInfo)


 class AuthSessionUserInfo(BaseModel):
@@ -210,7 +266,7 @@ class AuthProfileResponse(BaseModel):
    active_tenant: TenantInfo
    available_languages: list[LanguageInfo] = Field(default_factory=list)
    enabled_language_codes: list[str] = Field(default_factory=list)
-    default_language: str = "en"
+    default_language: str = "de"
    profile_loaded: bool = True


@@ -239,7 +295,7 @@ class LoginResponse(BaseModel):
    principal: PrincipalContextInfo | None = None
    available_languages: list[LanguageInfo] = Field(default_factory=list)
    enabled_language_codes: list[str] = Field(default_factory=list)
-    default_language: str = "en"
+    default_language: str = "de"
    profile_loaded: bool = True
    roles_loaded: bool = True
    groups_loaded: bool = True
@@ -257,7 +313,7 @@ class MeResponse(BaseModel):
    principal: PrincipalContextInfo | None = None
    available_languages: list[LanguageInfo] = Field(default_factory=list)
    enabled_language_codes: list[str] = Field(default_factory=list)
-    default_language: str = "en"
+    default_language: str = "de"
    profile_loaded: bool = True
    roles_loaded: bool = True
    groups_loaded: bool = True
@@ -18,7 +18,9 @@ from celery.signals import (

 from govoplan_core.core.campaigns import (
    CAPABILITY_CAMPAIGNS_DELIVERY_TASKS,
+    CAPABILITY_CAMPAIGNS_SCHEDULES,
    CampaignDeliveryTaskProvider,
+    CampaignScheduleProvider,
 )
 from govoplan_core.core.calendar import (
    CAPABILITY_CALENDAR_OUTBOX,
@@ -100,6 +102,7 @@ celery.conf.update(
    task_routes={
        "govoplan.campaigns.send_email": {"queue": "send_email"},
        "govoplan.campaigns.append_sent": {"queue": "append_sent"},
+        "govoplan.campaigns.dispatch_schedules": {"queue": "default"},
        "govoplan.notifications.deliver": {"queue": "notifications"},
        "govoplan.notifications.deliver_pending": {"queue": "notifications"},
        "govoplan.mail.dispatch_outbox": {"queue": "mail"},
@@ -132,6 +135,11 @@ celery.conf.update(
            "schedule": 60.0,
            "args": (None, 100),
        },
+        "campaign-schedules-every-minute": {
+            "task": "govoplan.campaigns.dispatch_schedules",
+            "schedule": 60.0,
+            "args": (None, 50),
+        },
        "mail-outbox-every-five-seconds": {
            "task": "govoplan.mail.dispatch_outbox",
            "schedule": 5.0,
@@ -555,6 +563,18 @@ def _campaign_delivery_tasks(
    return capability


+def _campaign_schedules(
+    registry: PlatformRegistry | None = None,
+) -> CampaignScheduleProvider | None:
+    registry = registry or _platform_registry()
+    if not registry.has_capability(CAPABILITY_CAMPAIGNS_SCHEDULES):
+        return None
+    capability = registry.require_capability(CAPABILITY_CAMPAIGNS_SCHEDULES)
+    if not isinstance(capability, CampaignScheduleProvider):
+        raise RuntimeError("Campaign schedule capability is invalid")
+    return capability
+
+
 def _notification_dispatch(
    registry: PlatformRegistry | None = None,
 ) -> NotificationDispatchProvider:
@@ -699,6 +719,62 @@ def _idm_assignment_lifecycle(
    return capability


+@celery.task(
+    name="govoplan.campaigns.dispatch_schedules",
+    bind=True,
+    max_retries=0,
+)
+def dispatch_campaign_schedules(
+    self,
+    tenant_id: str | None = None,
+    limit: int = 50,
+):
+    """Prepare manual drafts or governed autonomous Mail commands for due schedules."""
+
+    from govoplan_core.db.session import get_database
+
+    with get_database().SessionLocal() as session:
+        registry = _platform_registry()
+        defaults = {
+            "selected": 0,
+            "prepared": 0,
+            "autonomous_prepared": 0,
+            "failed": 0,
+            "completed": 0,
+            "coalesced": 0,
+            "duplicates": 0,
+            "deferred": 0,
+            "campaign_ids": [],
+            "operator_actions": [],
+            "refreshed": {
+                "checked": 0,
+                "accepted": 0,
+                "uncertain": 0,
+                "failed": 0,
+                "skipped": 0,
+            },
+        }
+        if not registry.has_capability(CAPABILITY_CAMPAIGNS_SCHEDULES):
+            return defaults
+        result = _run_tenant_worker_batches(
+            registry,
+            session,
+            capability_name=CAPABILITY_CAMPAIGNS_SCHEDULES,
+            tenant_id=tenant_id,
+            operation=lambda effective_tenant_id: _campaign_schedules(
+                registry
+            ).dispatch_due(  # type: ignore[union-attr]
+                session,
+                tenant_id=effective_tenant_id,
+                limit=limit,
+            ),
+            defaults=defaults,
+            work_state="new",
+        )
+        session.commit()
+        return result
+
+
@celery.task(name="govoplan.campaigns.send_email", bind=True, max_retries=0)
 def send_email(self, job_id: str):
    """Send one explicitly queued campaign job.
@@ -1122,7 +1198,7 @@ def dispatch_postbox_routes(
    tenant_id: str | None = None,
    limit: int = 50,
 ):
-    """Deliver due Postbox vacancy escalations from durable route rows."""
+    """Deliver due routes and reconcile assignment-derived notification facts."""

    from govoplan_core.db.session import get_database

@@ -1136,21 +1212,40 @@ def dispatch_postbox_routes(
            "cancelled": 0,
            "failed": 0,
            "route_ids": [],
+            "lifecycle_scanned": 0,
+            "lifecycle_changed": 0,
+            "lifecycle_events": 0,
+            "lifecycle_notifications": 0,
+            "lifecycle_notification_failures": 0,
        }
        if not registry.has_capability(CAPABILITY_POSTBOX_ROUTING):
            return defaults
+        provider = _postbox_routing_provider(registry)
+
+        def dispatch_tenant(effective_tenant_id: str) -> Mapping[str, object]:
+            route_result = provider.dispatch_due_routes(  # type: ignore[union-attr]
+                session,
+                tenant_id=effective_tenant_id,
+                limit=limit,
+            )
+            lifecycle_result = provider.reconcile_notification_lifecycle(  # type: ignore[union-attr]
+                session,
+                tenant_id=effective_tenant_id,
+                limit=limit,
+            )
+            return {
+                **route_result,
+                **{
+                    f"lifecycle_{key}": value for key, value in lifecycle_result.items()
+                },
+            }
+
        result = _run_tenant_worker_batches(
            registry,
            session,
            capability_name=CAPABILITY_POSTBOX_ROUTING,
            tenant_id=tenant_id,
-            operation=lambda effective_tenant_id: _postbox_routing_provider(
-                registry
-            ).dispatch_due_routes(  # type: ignore[union-attr]
-                session,
-                tenant_id=effective_tenant_id,
-                limit=limit,
-            ),
+            operation=dispatch_tenant,
            defaults=defaults,
        )
        session.commit()
@@ -24,6 +24,10 @@ CAPABILITY_ACCESS_TENANT_PROVISIONER = "access.tenantProvisioner"
 CAPABILITY_ACCESS_FIRST_ADMIN_PROVISIONER = "access.firstAdminProvisioner"
 CAPABILITY_ACCESS_ADMINISTRATION = "access.administration"
 CAPABILITY_ACCESS_GOVERNANCE_MATERIALIZER = "access.governanceMaterializer"
+CAPABILITY_ACCESS_GOVERNANCE_PROJECTION_V1 = "access.governanceProjection.v1"
+CAPABILITY_POLICY_ACCESS_EXPLANATION_SUBJECTS = (
+    "policy.access_explanation_subjects"
+)
 CAPABILITY_TENANCY_TENANT_RESOLVER = "tenancy.tenantResolver"
 CAPABILITY_AUDIT_SINK = "audit.sink"
 CAPABILITY_AUDIT_RECORDER = "audit.recorder"
@@ -49,6 +53,7 @@ ACCESS_CAPABILITY_NAMES = frozenset(
        CAPABILITY_ACCESS_FIRST_ADMIN_PROVISIONER,
        CAPABILITY_ACCESS_ADMINISTRATION,
        CAPABILITY_ACCESS_GOVERNANCE_MATERIALIZER,
+        CAPABILITY_ACCESS_GOVERNANCE_PROJECTION_V1,
        CAPABILITY_TENANCY_TENANT_RESOLVER,
        CAPABILITY_AUDIT_SINK,
        CAPABILITY_AUDIT_RECORDER,
@@ -177,6 +182,15 @@ class PrincipalRef:
        )


+@dataclass(frozen=True, slots=True)
+class AccessExplanationSubjectDecision:
+    allow_other_users: bool
+    reason: str
+    source: str
+    required_scope: str | None = None
+    provenance: Mapping[str, object] = field(default_factory=dict)
+
+
 def _optional_str(value: object | None) -> str | None:
    return str(value) if value is not None else None

@@ -378,6 +392,82 @@ class GovernanceTemplateMaterialization:
    required: bool = False


+GovernanceProjectionOperation = Literal["upsert", "remove"]
+GovernanceProjectionStatus = Literal[
+    "created",
+    "updated",
+    "unchanged",
+    "removed",
+    "absent",
+    "blocked",
+    "failed",
+]
+
+
+@dataclass(frozen=True, slots=True)
+class GovernanceProjectionCommand:
+    """Stable Access-owned input for one governance assignment projection."""
+
+    assignment_id: str
+    operation: GovernanceProjectionOperation
+    template: GovernanceTemplateMaterialization
+    provenance: Mapping[str, str] = field(default_factory=dict)
+
+    def __post_init__(self) -> None:
+        if not self.assignment_id or len(self.assignment_id) > 255:
+            raise ValueError("Governance projection assignment ids must contain at most 255 characters.")
+        if len(self.provenance) > 20:
+            raise ValueError("Governance projection provenance supports at most 20 entries.")
+        for key, value in self.provenance.items():
+            if not key or len(key) > 100 or len(value) > 500:
+                raise ValueError("Governance projection provenance entries exceed their bounds.")
+
+
+@dataclass(frozen=True, slots=True)
+class GovernanceProjectionBatch:
+    """Versioned, bounded reconciliation request independent of Admin internals."""
+
+    operation_id: str
+    commands: tuple[GovernanceProjectionCommand, ...]
+    version: Literal["1"] = "1"
+    dry_run: bool = False
+
+    def __post_init__(self) -> None:
+        if not self.operation_id or len(self.operation_id) > 255:
+            raise ValueError("Governance projection operation ids must contain at most 255 characters.")
+        if not self.commands or len(self.commands) > 500:
+            raise ValueError("Governance projection batches must contain between 1 and 500 commands.")
+        assignment_ids = [command.assignment_id for command in self.commands]
+        if len(assignment_ids) != len(set(assignment_ids)):
+            raise ValueError("Governance projection assignment ids must be unique within a batch.")
+
+
+@dataclass(frozen=True, slots=True)
+class GovernanceProjectionOutcome:
+    assignment_id: str
+    template_id: str
+    tenant_id: str
+    kind: Literal["group", "role"]
+    operation: GovernanceProjectionOperation
+    status: GovernanceProjectionStatus
+    resource_id: str | None = None
+    blocker_codes: tuple[str, ...] = ()
+    message: str | None = None
+    provenance: Mapping[str, str] = field(default_factory=dict)
+
+
+@dataclass(frozen=True, slots=True)
+class GovernanceProjectionResult:
+    operation_id: str
+    outcomes: tuple[GovernanceProjectionOutcome, ...]
+    version: Literal["1"] = "1"
+    dry_run: bool = False
+
+    @property
+    def blocked(self) -> tuple[GovernanceProjectionOutcome, ...]:
+        return tuple(item for item in self.outcomes if item.status in {"blocked", "failed"})
+
+
@dataclass(frozen=True, slots=True)
 class AuditEvent:
    event_type: str
@@ -564,6 +654,18 @@ class AccessExplanationService(Protocol):
        ...


+@runtime_checkable
+class AccessExplanationSubjectPolicy(Protocol):
+    def decide_subject_selection(
+        self,
+        session: object,
+        principal: PrincipalRef,
+        *,
+        tenant_id: str,
+    ) -> AccessExplanationSubjectDecision:
+        ...
+
+
@runtime_checkable
 class TenantAccessProvisioner(Protocol):
    def ensure_default_roles(self, session: object, tenant: object | None = None) -> Mapping[str, object]:
@@ -669,6 +771,18 @@ class AccessGovernanceMaterializer(Protocol):
        ...


+@runtime_checkable
+class AccessGovernanceProjectionV1(Protocol):
+    """Bulk reconciliation boundary for Admin-owned governance assignments."""
+
+    def reconcile(
+        self,
+        session: object,
+        batch: GovernanceProjectionBatch,
+    ) -> GovernanceProjectionResult:
+        ...
+
+
@runtime_checkable
 class AuditSink(Protocol):
    def record(self, event: AuditEvent) -> None:
@@ -0,0 +1,223 @@
+from __future__ import annotations
+
+from dataclasses import dataclass
+import re
+from typing import Any, Literal, Mapping
+
+
+AppearancePalette = Literal["default", "civic_blue", "forest", "plum"]
+AppearanceSource = Literal["user", "tenant", "system", "tenant_lock", "system_lock"]
+
+APPEARANCE_PALETTES: tuple[AppearancePalette, ...] = ("default", "civic_blue", "forest", "plum")
+APPEARANCE_SETTINGS_KEY = "appearance"
+APPEARANCE_OVERRIDE_SCHEMA_VERSION = "1"
+APPEARANCE_OVERRIDE_TOKENS: tuple[str, ...] = (
+    "accent", "accent_foreground", "surface", "surface_foreground",
+    "success", "success_foreground", "info", "info_foreground",
+    "warning", "warning_foreground", "danger", "danger_foreground",
+)
+_STATUS_TOKENS = ("success", "info", "warning", "danger")
+_HEX_COLOR = re.compile(r"^#[0-9a-fA-F]{6}$")
+
+
+@dataclass(frozen=True, slots=True)
+class EffectiveAppearance:
+    palette: AppearancePalette
+    source: AppearanceSource
+    locked: bool
+    system_default_palette: AppearancePalette
+    tenant_default_palette: AppearancePalette | None
+    inherited_palette: AppearancePalette
+    custom_overrides: dict[str, object] | None = None
+    custom_overrides_allowed: bool = False
+
+    def as_dict(self) -> dict[str, object]:
+        return {
+            "palette": self.palette,
+            "source": self.source,
+            "locked": self.locked,
+            "system_default_palette": self.system_default_palette,
+            "tenant_default_palette": self.tenant_default_palette,
+            "inherited_palette": self.inherited_palette,
+            "custom_overrides": self.custom_overrides,
+            "custom_overrides_allowed": self.custom_overrides_allowed,
+        }
+
+
+def normalize_appearance_palette(value: object, *, fallback: AppearancePalette | None = None) -> AppearancePalette | None:
+    normalized = str(value or "").strip().lower()
+    return normalized if normalized in APPEARANCE_PALETTES else fallback  # type: ignore[return-value]
+
+
+def appearance_settings(settings: Mapping[str, Any] | None) -> tuple[AppearancePalette | None, bool]:
+    raw = settings.get(APPEARANCE_SETTINGS_KEY) if isinstance(settings, Mapping) else None
+    if not isinstance(raw, Mapping):
+        return None, False
+    return normalize_appearance_palette(raw.get("default_palette")), raw.get("palette_locked") is True
+
+
+def appearance_custom_overrides_policy(settings: Mapping[str, Any] | None) -> bool | None:
+    raw = settings.get(APPEARANCE_SETTINGS_KEY) if isinstance(settings, Mapping) else None
+    if not isinstance(raw, Mapping) or "allow_custom_overrides" not in raw:
+        return None
+    return raw.get("allow_custom_overrides") is True
+
+
+def update_appearance_custom_overrides_policy(
+    settings: Mapping[str, Any] | None,
+    *,
+    allowed: bool | None,
+) -> dict[str, Any]:
+    updated = dict(settings or {})
+    appearance = dict(updated.get(APPEARANCE_SETTINGS_KEY) or {}) if isinstance(updated.get(APPEARANCE_SETTINGS_KEY), Mapping) else {}
+    if allowed is None:
+        appearance.pop("allow_custom_overrides", None)
+    else:
+        appearance["allow_custom_overrides"] = allowed
+    if appearance:
+        updated[APPEARANCE_SETTINGS_KEY] = appearance
+    else:
+        updated.pop(APPEARANCE_SETTINGS_KEY, None)
+    return updated
+
+
+def normalize_appearance_overrides(value: object) -> dict[str, object] | None:
+    """Validate and canonicalize the versioned, all-or-nothing color contract."""
+
+    if value is None:
+        return None
+    if not isinstance(value, Mapping):
+        raise ValueError("Appearance overrides must be an object.")
+    if set(value) != {"schema_version", "light", "dark"}:
+        raise ValueError("Appearance overrides must contain only schema_version, light, and dark.")
+    if str(value.get("schema_version")) != APPEARANCE_OVERRIDE_SCHEMA_VERSION:
+        raise ValueError("Unsupported appearance override schema version.")
+    normalized: dict[str, object] = {"schema_version": APPEARANCE_OVERRIDE_SCHEMA_VERSION}
+    for mode in ("light", "dark"):
+        raw_mode = value.get(mode)
+        if not isinstance(raw_mode, Mapping) or set(raw_mode) != set(APPEARANCE_OVERRIDE_TOKENS):
+            raise ValueError(f"Appearance override mode {mode} must define every supported token exactly once.")
+        colors: dict[str, str] = {}
+        for token in APPEARANCE_OVERRIDE_TOKENS:
+            color = str(raw_mode.get(token) or "").strip().lower()
+            if not _HEX_COLOR.fullmatch(color):
+                raise ValueError(f"Appearance override {mode}.{token} must be a six-digit hexadecimal color.")
+            colors[token] = color
+        _validate_mode_accessibility(mode, colors)
+        normalized[mode] = colors
+    return normalized
+
+
+def _validate_mode_accessibility(mode: str, colors: Mapping[str, str]) -> None:
+    pairs = (
+        ("accent", "accent_foreground"), ("surface", "surface_foreground"),
+        ("success", "success_foreground"), ("info", "info_foreground"),
+        ("warning", "warning_foreground"), ("danger", "danger_foreground"),
+    )
+    for background, foreground in pairs:
+        if _contrast_ratio(colors[background], colors[foreground]) < 4.5:
+            raise ValueError(f"Appearance override {mode}.{foreground} must have WCAG AA contrast against {mode}.{background}.")
+    status_colors = [colors[token] for token in _STATUS_TOKENS]
+    for index, first in enumerate(status_colors):
+        for second in status_colors[index + 1:]:
+            if _rgb_distance(first, second) < 12:
+                raise ValueError(f"Appearance override status colors in {mode} must remain visibly distinct.")
+
+
+def _relative_luminance(color: str) -> float:
+    channels = [int(color[index:index + 2], 16) / 255 for index in (1, 3, 5)]
+    linear = [channel / 12.92 if channel <= 0.04045 else ((channel + 0.055) / 1.055) ** 2.4 for channel in channels]
+    return 0.2126 * linear[0] + 0.7152 * linear[1] + 0.0722 * linear[2]
+
+
+def _contrast_ratio(first: str, second: str) -> float:
+    high, low = sorted((_relative_luminance(first), _relative_luminance(second)), reverse=True)
+    return (high + 0.05) / (low + 0.05)
+
+
+def _rgb_distance(first: str, second: str) -> float:
+    first_channels = [int(first[index:index + 2], 16) for index in (1, 3, 5)]
+    second_channels = [int(second[index:index + 2], 16) for index in (1, 3, 5)]
+    return sum((left - right) ** 2 for left, right in zip(first_channels, second_channels, strict=True)) ** 0.5
+
+
+def update_appearance_settings(
+    settings: Mapping[str, Any] | None,
+    *,
+    default_palette: AppearancePalette | None,
+    palette_locked: bool,
+) -> dict[str, Any]:
+    updated = dict(settings or {})
+    appearance = dict(updated.get(APPEARANCE_SETTINGS_KEY) or {}) if isinstance(updated.get(APPEARANCE_SETTINGS_KEY), Mapping) else {}
+    if default_palette is None:
+        appearance.pop("default_palette", None)
+    else:
+        normalized = normalize_appearance_palette(default_palette)
+        if normalized is None:
+            raise ValueError("Unsupported appearance palette.")
+        appearance["default_palette"] = normalized
+    if palette_locked:
+        appearance["palette_locked"] = True
+    else:
+        appearance.pop("palette_locked", None)
+    if appearance:
+        updated[APPEARANCE_SETTINGS_KEY] = appearance
+    else:
+        updated.pop(APPEARANCE_SETTINGS_KEY, None)
+    return updated
+
+
+def resolve_effective_appearance(
+    *,
+    system_settings: Mapping[str, Any] | None,
+    tenant_settings: Mapping[str, Any] | None,
+    user_settings: Mapping[str, Any] | None,
+) -> EffectiveAppearance:
+    system_palette, system_locked = appearance_settings(system_settings)
+    system_palette = system_palette or "default"
+    tenant_palette, tenant_locked = appearance_settings(tenant_settings)
+    inherited_palette = tenant_palette or system_palette
+    raw_ui = user_settings.get("ui") if isinstance(user_settings, Mapping) else None
+    user_palette = normalize_appearance_palette(raw_ui.get("palette")) if isinstance(raw_ui, Mapping) else None
+    system_custom_policy = appearance_custom_overrides_policy(system_settings) is True
+    tenant_custom_policy = appearance_custom_overrides_policy(tenant_settings)
+    custom_overrides_allowed = system_custom_policy and tenant_custom_policy is not False and not system_locked and not tenant_locked
+    try:
+        custom_overrides = normalize_appearance_overrides(raw_ui.get("appearance_overrides")) if isinstance(raw_ui, Mapping) else None
+    except ValueError:
+        custom_overrides = None
+    if not custom_overrides_allowed:
+        custom_overrides = None
+
+    if system_locked:
+        return EffectiveAppearance(system_palette, "system_lock", True, system_palette, tenant_palette, system_palette)
+    if tenant_locked:
+        return EffectiveAppearance(inherited_palette, "tenant_lock", True, system_palette, tenant_palette, inherited_palette)
+    return EffectiveAppearance(
+        user_palette or inherited_palette,
+        "user" if user_palette else "tenant" if tenant_palette else "system",
+        False,
+        system_palette,
+        tenant_palette,
+        inherited_palette,
+        custom_overrides,
+        custom_overrides_allowed,
+    )
+
+
+__all__ = [
+    "APPEARANCE_PALETTES",
+    "APPEARANCE_SETTINGS_KEY",
+    "APPEARANCE_OVERRIDE_SCHEMA_VERSION",
+    "APPEARANCE_OVERRIDE_TOKENS",
+    "AppearancePalette",
+    "AppearanceSource",
+    "EffectiveAppearance",
+    "appearance_settings",
+    "appearance_custom_overrides_policy",
+    "normalize_appearance_overrides",
+    "normalize_appearance_palette",
+    "resolve_effective_appearance",
+    "update_appearance_settings",
+    "update_appearance_custom_overrides_policy",
+]
@@ -0,0 +1,81 @@
+from __future__ import annotations
+
+from collections.abc import Mapping
+from datetime import datetime
+from typing import Protocol, runtime_checkable
+
+
+CAPABILITY_APPLICATION_STATUS_PROJECTION = "application_status.projection"
+
+
+@runtime_checkable
+class ApplicationStatusProjectionProvider(Protocol):
+    """Bounded applicant-status access without exposing the owning module's data."""
+
+    def tenant_id_for_tracking_id(
+        self,
+        session: object,
+        *,
+        tracking_id: str,
+    ) -> str | None:
+        ...
+
+    def public_access_challenge(
+        self,
+        session: object,
+        *,
+        tracking_id: str,
+    ) -> Mapping[str, object]:
+        ...
+
+    def get_authenticated_projection(
+        self,
+        session: object,
+        principal: object,
+        *,
+        tracking_id: str,
+        observed_at: datetime,
+    ) -> Mapping[str, object]:
+        ...
+
+    def get_public_projection(
+        self,
+        session: object,
+        *,
+        tracking_id: str,
+        token: str | None,
+        observed_at: datetime,
+    ) -> Mapping[str, object]:
+        ...
+
+    def request_email_link(
+        self,
+        session: object,
+        *,
+        tracking_id: str,
+        email: str,
+        requested_at: datetime,
+    ) -> bool:
+        ...
+
+
+def application_status_projection_provider(
+    registry: object | None,
+) -> ApplicationStatusProjectionProvider | None:
+    if registry is None or not hasattr(registry, "has_capability"):
+        return None
+    if not registry.has_capability(CAPABILITY_APPLICATION_STATUS_PROJECTION):
+        return None
+    capability = registry.capability(CAPABILITY_APPLICATION_STATUS_PROJECTION)
+    return (
+        capability
+        if isinstance(capability, ApplicationStatusProjectionProvider)
+        else None
+    )
+
+
+__all__ = [
+    "ApplicationStatusProjectionProvider",
+    "CAPABILITY_APPLICATION_STATUS_PROJECTION",
+    "application_status_projection_provider",
+]
@@ -45,6 +45,15 @@ class CalendarEventRef:
    outbox_operation_id: str | None = None


+@dataclass(frozen=True, slots=True)
+class CalendarEventReleaseRef:
+    event_id: str
+    accepted: bool = True
+    already_released: bool = False
+    external_state: str = "local_released"
+    outbox_operation_id: str | None = None
+
+
@dataclass(frozen=True, slots=True)
 class CalendarInvitationAttendeeRequest:
    address: str
@@ -156,6 +165,27 @@ class CalendarSchedulingProvider(Protocol):
    ) -> CalendarEventRef:
        ...

+    def promote_event(
+        self,
+        session: object,
+        *,
+        tenant_id: str,
+        user_id: str | None,
+        event_id: str,
+        request: CalendarEventRequest,
+    ) -> CalendarEventRef:
+        ...
+
+    def release_event(
+        self,
+        session: object,
+        *,
+        tenant_id: str,
+        user_id: str | None,
+        event_id: str,
+    ) -> CalendarEventReleaseRef:
+        ...
+

@runtime_checkable
 class CalendarOutboxProvider(Protocol):
@@ -10,6 +10,7 @@ CAPABILITY_CAMPAIGNS_MAIL_POLICY_CONTEXT = "campaigns.mailPolicyContext"
 CAPABILITY_CAMPAIGNS_ACCESS = "campaigns.access"
 CAPABILITY_CAMPAIGNS_POLICY_CONTEXT = "campaigns.policyContext"
 CAPABILITY_CAMPAIGNS_DELIVERY_TASKS = "campaigns.deliveryTasks"
+CAPABILITY_CAMPAIGNS_SCHEDULES = "campaigns.schedules"
 CAPABILITY_CAMPAIGNS_RETENTION = "campaigns.retention"


@@ -105,6 +106,21 @@ class CampaignDeliveryTaskProvider(Protocol):
        ...


+@runtime_checkable
+class CampaignScheduleProvider(Protocol):
+    """Durable boundary for due manual drafts and governed autonomous occurrences."""
+
+    def dispatch_due(
+        self,
+        session: object,
+        *,
+        tenant_id: str | None = None,
+        now: datetime | None = None,
+        limit: int = 50,
+    ) -> Mapping[str, object]:
+        ...
+
+
@runtime_checkable
 class CampaignRetentionProvider(Protocol):
    def apply_retention(
@@ -28,6 +28,9 @@ from govoplan_core.core.external_references import (
    SourceAuthorityMode,
    integration_maturity_rank,
 )
+from govoplan_core.core.infrastructure_capabilities import (
+    InfrastructureCapabilityReceipt,
+)
 from govoplan_core.security.http_fetch import fetch_http_text


@@ -441,6 +444,9 @@ class ConfigurationPreflightContext:
        default_factory=dict
    )
    dry_run: bool = True
+    operator_scopes: frozenset[str] = frozenset()
+    infrastructure_receipt: InfrastructureCapabilityReceipt | None = None
+    infrastructure_receipt_error: str | None = None


@dataclass(frozen=True, slots=True)
@@ -586,11 +592,14 @@ def apply_configuration_package(
    apply_context = ConfigurationPreflightContext(
        tenant_id=context.tenant_id,
        operator_user_id=context.operator_user_id,
+        operator_scopes=context.operator_scopes,
        supplied_data=supplied_data if supplied_data is not None else context.supplied_data,
        installed_modules=context.installed_modules,
        capabilities=context.capabilities,
        external_provider_declarations=context.external_provider_declarations,
        external_provider_states=context.external_provider_states,
+        infrastructure_receipt=context.infrastructure_receipt,
+        infrastructure_receipt_error=context.infrastructure_receipt_error,
        dry_run=False,
    )
    preflight = dry_run_configuration_package(manifest, providers, apply_context)
@@ -5,6 +5,7 @@ from dataclasses import dataclass, field
 from datetime import datetime
 from typing import Literal, Protocol, runtime_checkable

+from govoplan_core.core.access import PrincipalRef
 from govoplan_core.core.external_references import (
    SOURCE_AUTHORITY_MODES,
    SourceAuthorityMode,
@@ -23,6 +24,8 @@ CAPABILITY_DATASOURCE_CATALOGUE = "datasources.catalogue"
 CAPABILITY_DATASOURCE_LIFECYCLE = "datasources.lifecycle"
 CAPABILITY_DATASOURCE_PUBLICATION = "datasources.publication"
 CAPABILITY_DATASOURCE_ORIGINS = "connectors.datasourceOrigins"
+CAPABILITY_DATASOURCE_ARTIFACT_BACKENDS = "datasources.artifactBackends"
+CAPABILITY_POLICY_DATASOURCE_VISIBILITY = "policy.datasourceVisibility"

 DatasourceMode = Literal["live", "cached", "static"]
 DatasourceKind = Literal[
@@ -37,6 +40,12 @@ DatasourceKind = Literal[
 ]
 DatasourceShape = Literal["tabular", "document", "binary", "directory", "stream"]
 DatasourceConsistency = Literal["current", "live", "frozen"]
+DatasourceVisibilityAction = Literal["discover", "read"]
+DatasourcePublicationStatus = Literal[
+    "published",
+    "published_with_warnings",
+    "review_required",
+]


 class DatasourceError(ValueError):
@@ -64,6 +73,7 @@ class DatasourceField:
    name: str
    data_type: str
    nullable: bool = True
+    classification: str = "internal"


@dataclass(frozen=True, slots=True)
@@ -84,6 +94,8 @@ class DatasourceGovernance:
    classification: str = "internal"
    privacy_profile_ref: str | None = None
    retention_policy_ref: str | None = None
+    access_policy_ref: str | None = None
+    visibility_policy: Mapping[str, object] = field(default_factory=dict)
    hold_refs: tuple[str, ...] = ()
    publication_state: str = "draft"
    transfer_agreement_ref: str | None = None
@@ -154,6 +166,12 @@ class DatasourceGovernance:
            retention_policy_ref=_optional_governance_text(
                source.get("retention_policy_ref")
            ),
+            access_policy_ref=_optional_governance_text(
+                source.get("access_policy_ref")
+            ),
+            visibility_policy=_governance_mapping(
+                source.get("visibility_policy")
+            ),
            hold_refs=_governance_texts(source.get("hold_refs")),
            publication_state=str(source.get("publication_state") or "draft"),
            transfer_agreement_ref=_optional_governance_text(
@@ -185,6 +203,8 @@ class DatasourceGovernance:
            "classification": self.classification,
            "privacy_profile_ref": self.privacy_profile_ref,
            "retention_policy_ref": self.retention_policy_ref,
+            "access_policy_ref": self.access_policy_ref,
+            "visibility_policy": dict(self.visibility_policy),
            "hold_refs": list(self.hold_refs),
            "publication_state": self.publication_state,
            "transfer_agreement_ref": self.transfer_agreement_ref,
@@ -197,6 +217,39 @@ class DatasourceGovernance:
        }


+@dataclass(frozen=True, slots=True)
+class DatasourceVisibilityPolicyRequest:
+    tenant_id: str
+    datasource_ref: str
+    principal: PrincipalRef
+    action: DatasourceVisibilityAction
+    classification: str = "internal"
+    policy_ref: str | None = None
+    consistency: DatasourceConsistency = "current"
+    materialization_ref: str | None = None
+
+
+@dataclass(frozen=True, slots=True)
+class DatasourceVisibilityPolicyDecision:
+    allowed: bool
+    reason: str | None = None
+    policies: tuple[Mapping[str, object], ...] = ()
+    decision_ref: str | None = None
+    provenance: Mapping[str, object] = field(default_factory=dict)
+
+
+@runtime_checkable
+class DatasourceVisibilityPolicyProvider(Protocol):
+    """Optionally tighten Datasources-owned local visibility policy."""
+
+    def decide_datasource_visibility(
+        self,
+        session: object,
+        *,
+        request: DatasourceVisibilityPolicyRequest,
+    ) -> DatasourceVisibilityPolicyDecision: ...
+
+
@dataclass(frozen=True, slots=True)
 class DatasourceDescriptor:
    ref: str
@@ -309,12 +362,73 @@ class DatasourceStageInput:
    governance: DatasourceGovernance | None = None


+@dataclass(frozen=True, slots=True)
+class DatasourceArtifactReference:
+    """Immutable provider-neutral reference to a durable tabular payload.
+
+    The producer owns creation of the payload. Datasources pins its locator,
+    checksum and declared shape without importing the artifact-owning module;
+    a configured payload backend verifies integrity and provides bounded reads.
+    """
+
+    backend: str
+    locator: str
+    checksum: str
+    row_count: int
+    byte_count: int
+    schema: tuple[DatasourceField, ...]
+    fingerprint: str
+    media_type: str = "application/x-ndjson"
+    checkpoint: Mapping[str, object] = field(default_factory=dict)
+    metadata: Mapping[str, object] = field(default_factory=dict)
+    validation: Mapping[str, object] = field(default_factory=dict)
+
+
+@runtime_checkable
+class DatasourceArtifactBackend(Protocol):
+    """Storage-module boundary for immutable artifact-backed tabular data."""
+
+    backend: str
+
+    def verify(
+        self,
+        session: object,
+        *,
+        tenant_id: str,
+        artifact: DatasourceArtifactReference,
+    ) -> None: ...
+
+    def read_rows(
+        self,
+        session: object,
+        *,
+        tenant_id: str,
+        artifact: DatasourceArtifactReference,
+        offset: int,
+        limit: int,
+    ) -> Sequence[Mapping[str, object]]: ...
+
+    def delete(
+        self,
+        session: object,
+        *,
+        tenant_id: str,
+        artifact: DatasourceArtifactReference,
+    ) -> None: ...
+
+
+@runtime_checkable
+class DatasourceArtifactBackendProvider(Protocol):
+    def artifact_backends(self) -> Sequence[DatasourceArtifactBackend]: ...
+
+
@dataclass(frozen=True, slots=True)
 class DatasourcePublicationRequest:
    producer_module: str
    producer_run_ref: str
    idempotency_key: str
-    rows: tuple[Mapping[str, object], ...]
+    rows: tuple[Mapping[str, object], ...] | None = None
+    artifact: DatasourceArtifactReference | None = None
    target_datasource_ref: str | None = None
    name: str | None = None
    source_name: str | None = None
@@ -331,7 +445,7 @@ class DatasourcePublicationRequest:
@dataclass(frozen=True, slots=True)
 class DatasourcePublicationResult:
    ref: str
-    status: str
+    status: DatasourcePublicationStatus
    datasource: DatasourceDescriptor
    materialization: DatasourceMaterialization
    replayed: bool = False
@@ -564,6 +678,17 @@ def datasource_catalogue(registry: object | None) -> DatasourceCatalogueProvider
    return capability if isinstance(capability, DatasourceCatalogueProvider) else None


+def datasource_artifact_backend_provider(
+    registry: object | None,
+) -> DatasourceArtifactBackendProvider | None:
+    capability = _capability(registry, CAPABILITY_DATASOURCE_ARTIFACT_BACKENDS)
+    return (
+        capability
+        if isinstance(capability, DatasourceArtifactBackendProvider)
+        else None
+    )
+
+
 def datasource_lifecycle(registry: object | None) -> DatasourceLifecycleProvider | None:
    capability = _capability(registry, CAPABILITY_DATASOURCE_LIFECYCLE)
    return capability if isinstance(capability, DatasourceLifecycleProvider) else None
@@ -581,6 +706,13 @@ def datasource_origins(registry: object | None) -> DatasourceOriginProvider | No
    return capability if isinstance(capability, DatasourceOriginProvider) else None


+def datasource_visibility_policy_provider(
+    registry: object | None,
+) -> DatasourceVisibilityPolicyProvider | None:
+    capability = _capability(registry, CAPABILITY_POLICY_DATASOURCE_VISIBILITY)
+    return capability if isinstance(capability, DatasourceVisibilityPolicyProvider) else None
+
+
 def _capability(registry: object | None, name: str) -> object | None:
    if (
        registry is None
@@ -613,9 +745,15 @@ def _governance_mapping(value: object) -> Mapping[str, object]:

 __all__ = [
    "CAPABILITY_DATASOURCE_CATALOGUE",
+    "CAPABILITY_DATASOURCE_ARTIFACT_BACKENDS",
    "CAPABILITY_DATASOURCE_LIFECYCLE",
    "CAPABILITY_DATASOURCE_ORIGINS",
+    "CAPABILITY_DATASOURCE_PUBLICATION",
+    "CAPABILITY_POLICY_DATASOURCE_VISIBILITY",
    "DatasourceAccessError",
+    "DatasourceArtifactReference",
+    "DatasourceArtifactBackend",
+    "DatasourceArtifactBackendProvider",
    "DatasourceCatalogueProvider",
    "DatasourceConsistency",
    "DatasourceDescriptor",
@@ -631,6 +769,10 @@ __all__ = [
    "DatasourceOriginProvider",
    "DatasourceOriginReadRequest",
    "DatasourceOriginReadResult",
+    "DatasourcePublicationProvider",
+    "DatasourcePublicationRequest",
+    "DatasourcePublicationResult",
+    "DatasourcePublicationStatus",
    "DatasourceReadRequest",
    "DatasourceReadResult",
    "DatasourceShape",
@@ -638,7 +780,14 @@ __all__ = [
    "DatasourceStageInput",
    "DatasourceUnavailableError",
    "DatasourceValidationError",
+    "DatasourceVisibilityAction",
+    "DatasourceVisibilityPolicyDecision",
+    "DatasourceVisibilityPolicyProvider",
+    "DatasourceVisibilityPolicyRequest",
    "datasource_catalogue",
+    "datasource_artifact_backend_provider",
    "datasource_lifecycle",
    "datasource_origins",
+    "datasource_publication",
+    "datasource_visibility_policy_provider",
 ]
@@ -0,0 +1,197 @@
+from __future__ import annotations
+
+from collections.abc import Mapping, Sequence
+from dataclasses import dataclass, field
+from datetime import datetime
+from typing import Literal, Protocol, runtime_checkable
+
+
+DSAR_CAPABILITY_PREFIX = "privacy.dsar."
+
+DsarRequestKind = Literal["access", "erasure", "access_and_erasure"]
+DsarActionKind = Literal[
+    "delete",
+    "anonymize",
+    "revoke",
+    "detach",
+    "retain",
+    "manual_review",
+]
+
+
+@dataclass(frozen=True, slots=True)
+class DsarSubjectRef:
+    account_id: str | None = None
+    identity_id: str | None = None
+    membership_id: str | None = None
+    email: str | None = None
+    external_references: Mapping[str, str] = field(default_factory=dict)
+
+    def has_selector(self) -> bool:
+        return bool(
+            self.account_id
+            or self.identity_id
+            or self.membership_id
+            or self.email
+            or self.external_references
+        )
+
+    def to_dict(self) -> dict[str, object]:
+        return {
+            "account_id": self.account_id,
+            "identity_id": self.identity_id,
+            "membership_id": self.membership_id,
+            "email": self.email,
+            "external_references": dict(self.external_references),
+        }
+
+
+@dataclass(frozen=True, slots=True)
+class DsarRecordRef:
+    provider_id: str
+    module_id: str
+    resource_type: str
+    resource_id: str
+    category: str
+    title: str
+    data: Mapping[str, object] = field(default_factory=dict)
+    observed_at: datetime | None = None
+    immutable_evidence: bool = False
+    retention_reason: str | None = None
+    source_path: str | None = None
+
+    def to_dict(self) -> dict[str, object]:
+        return {
+            "provider_id": self.provider_id,
+            "module_id": self.module_id,
+            "resource_type": self.resource_type,
+            "resource_id": self.resource_id,
+            "category": self.category,
+            "title": self.title,
+            "data": dict(self.data),
+            "observed_at": self.observed_at.isoformat() if self.observed_at else None,
+            "immutable_evidence": self.immutable_evidence,
+            "retention_reason": self.retention_reason,
+            "source_path": self.source_path,
+        }
+
+
+@dataclass(frozen=True, slots=True)
+class DsarErasureActionRef:
+    action_id: str
+    provider_id: str
+    module_id: str
+    kind: DsarActionKind
+    resource_type: str
+    resource_id: str
+    title: str
+    rationale: str
+    executable: bool
+    irreversible: bool = False
+    metadata: Mapping[str, object] = field(default_factory=dict)
+
+    def to_dict(self) -> dict[str, object]:
+        return {
+            "action_id": self.action_id,
+            "provider_id": self.provider_id,
+            "module_id": self.module_id,
+            "kind": self.kind,
+            "resource_type": self.resource_type,
+            "resource_id": self.resource_id,
+            "title": self.title,
+            "rationale": self.rationale,
+            "executable": self.executable,
+            "irreversible": self.irreversible,
+            "metadata": dict(self.metadata),
+        }
+
+
+@dataclass(frozen=True, slots=True)
+class DsarExecutionResultRef:
+    action_id: str
+    status: Literal["executed", "unchanged", "failed", "blocked"]
+    summary: str
+    evidence: Mapping[str, object] = field(default_factory=dict)
+
+    def to_dict(self) -> dict[str, object]:
+        return {
+            "action_id": self.action_id,
+            "status": self.status,
+            "summary": self.summary,
+            "evidence": dict(self.evidence),
+        }
+
+
+@runtime_checkable
+class DsarProvider(Protocol):
+    provider_id: str
+    module_id: str
+
+    def search_subject(
+        self,
+        session: object,
+        *,
+        tenant_id: str,
+        subject: DsarSubjectRef,
+    ) -> Sequence[DsarRecordRef]: ...
+
+    def plan_erasure(
+        self,
+        session: object,
+        *,
+        tenant_id: str,
+        subject: DsarSubjectRef,
+        records: Sequence[DsarRecordRef],
+    ) -> Sequence[DsarErasureActionRef]: ...
+
+    def execute_erasure(
+        self,
+        session: object,
+        *,
+        tenant_id: str,
+        subject: DsarSubjectRef,
+        actions: Sequence[DsarErasureActionRef],
+        request_id: str,
+    ) -> Sequence[DsarExecutionResultRef]: ...
+
+
+def dsar_capability_name(module_id: str) -> str:
+    normalized = module_id.strip().casefold()
+    if not normalized or not normalized.replace("_", "").isalnum():
+        raise ValueError("DSAR module id must be an identifier.")
+    return f"{DSAR_CAPABILITY_PREFIX}{normalized}"
+
+
+def dsar_provider_names(registry: object | None) -> tuple[str, ...]:
+    if registry is None or not hasattr(registry, "capability_names"):
+        return ()
+    return tuple(
+        name
+        for name in registry.capability_names()
+        if name.startswith(DSAR_CAPABILITY_PREFIX)
+    )
+
+
+def dsar_provider(
+    registry: object,
+    capability_name: str,
+) -> DsarProvider:
+    provider = registry.require_capability(capability_name)
+    if not isinstance(provider, DsarProvider):
+        raise TypeError(f"{capability_name} does not implement DsarProvider")
+    return provider
+
+
+__all__ = [
+    "DSAR_CAPABILITY_PREFIX",
+    "DsarActionKind",
+    "DsarErasureActionRef",
+    "DsarExecutionResultRef",
+    "DsarProvider",
+    "DsarRecordRef",
+    "DsarRequestKind",
+    "DsarSubjectRef",
+    "dsar_capability_name",
+    "dsar_provider",
+    "dsar_provider_names",
+]
@@ -2,6 +2,7 @@ from __future__ import annotations

 from collections.abc import Mapping
 from dataclasses import dataclass, field
+from datetime import datetime
 from typing import Protocol, runtime_checkable

 from govoplan_core.core.access import ResourceAccessExplanationProvider
@@ -9,6 +10,49 @@ from govoplan_core.core.access import ResourceAccessExplanationProvider

 CAPABILITY_FILES_ACCESS = "files.access"
 CAPABILITY_FILES_ARTIFACT_STORE = "files.artifact_store"
+CAPABILITY_FILES_POSTBOX_REFERENCES = "files.postbox_references"
+CAPABILITY_FILES_TABULAR_CONTENT = "files.tabular_content"
+
+
+class ManagedTabularFileError(ValueError):
+    """Stable base error for exact-version managed tabular file access."""
+
+
+class ManagedTabularFileNotFoundError(ManagedTabularFileError):
+    pass
+
+
+class ManagedTabularFileAccessError(ManagedTabularFileError):
+    pass
+
+
+class ManagedTabularFileUnavailableError(ManagedTabularFileError):
+    pass
+
+
+class ManagedTabularFileValidationError(ManagedTabularFileError):
+    pass
+
+
+@dataclass(frozen=True, slots=True)
+class ManagedTabularFile:
+    """Authorized metadata for one immutable managed file version."""
+
+    file_asset_id: str
+    file_version_id: str
+    filename: str
+    display_path: str
+    content_type: str | None
+    size_bytes: int
+    sha256: str
+    updated_at: datetime | None = None
+    current_version: bool = True
+
+
+@dataclass(frozen=True, slots=True)
+class ManagedTabularFileContent:
+    file: ManagedTabularFile
+    payload: bytes


@dataclass(frozen=True, slots=True)
@@ -34,6 +78,30 @@ class ManagedArtifactRef:
    provenance: Mapping[str, object] = field(default_factory=dict)


+@dataclass(frozen=True, slots=True)
+class PostboxFileReferenceRequest:
+    reference_type: str
+    reference_id: str
+    postbox_id: str
+    message_id: str
+
+
+@dataclass(frozen=True, slots=True)
+class PostboxFileReferenceRef:
+    reference_type: str
+    reference_id: str
+    available: bool
+    reason_code: str
+    file_asset_id: str | None = None
+    file_version_id: str | None = None
+    filename: str | None = None
+    content_type: str | None = None
+    size_bytes: int | None = None
+    sha256: str | None = None
+    download_path: str | None = None
+    provenance: Mapping[str, object] = field(default_factory=dict)
+
+
@runtime_checkable
 class FileAccessProvider(ResourceAccessExplanationProvider, Protocol):
    """Resource-level access explanation provider for Files-owned resources."""
@@ -50,3 +118,111 @@ class ManagedArtifactStore(Protocol):
        *,
        request: ManagedArtifactWriteRequest,
    ) -> ManagedArtifactRef: ...
+
+
+@runtime_checkable
+class PostboxFileReferenceProvider(Protocol):
+    """Resolve Files-owned references after Postbox and Files authorization."""
+
+    def resolve_postbox_references(
+        self,
+        session: object,
+        principal: object,
+        *,
+        tenant_id: str,
+        requests: tuple[PostboxFileReferenceRequest, ...],
+    ) -> tuple[PostboxFileReferenceRef, ...]: ...
+
+
+@runtime_checkable
+class ManagedTabularFileProvider(Protocol):
+    """List and open authorized CSV/XLSX content without exposing Files internals."""
+
+    def list_tabular_files(
+        self,
+        session: object,
+        principal: object,
+        *,
+        query: str = "",
+        limit: int = 100,
+    ) -> tuple[ManagedTabularFile, ...]: ...
+
+    def get_tabular_file(
+        self,
+        session: object,
+        principal: object,
+        *,
+        file_asset_id: str,
+        file_version_id: str | None = None,
+    ) -> ManagedTabularFile | None: ...
+
+    def read_tabular_file(
+        self,
+        session: object,
+        principal: object,
+        *,
+        file_asset_id: str,
+        file_version_id: str,
+        max_bytes: int,
+    ) -> ManagedTabularFileContent: ...
+
+
+def postbox_file_reference_provider(
+    registry: object | None,
+) -> PostboxFileReferenceProvider | None:
+    if (
+        registry is None
+        or not hasattr(registry, "has_capability")
+        or not registry.has_capability(CAPABILITY_FILES_POSTBOX_REFERENCES)
+    ):
+        return None
+    provider = registry.require_capability(CAPABILITY_FILES_POSTBOX_REFERENCES)
+    if not isinstance(provider, PostboxFileReferenceProvider):
+        raise TypeError(
+            "files.postbox_references provider does not implement "
+            "PostboxFileReferenceProvider"
+        )
+    return provider
+
+
+def managed_tabular_file_provider(
+    registry: object | None,
+) -> ManagedTabularFileProvider | None:
+    if (
+        registry is None
+        or not hasattr(registry, "has_capability")
+        or not registry.has_capability(CAPABILITY_FILES_TABULAR_CONTENT)
+    ):
+        return None
+    provider = registry.require_capability(CAPABILITY_FILES_TABULAR_CONTENT)
+    if not isinstance(provider, ManagedTabularFileProvider):
+        raise TypeError(
+            "files.tabular_content provider does not implement "
+            "ManagedTabularFileProvider"
+        )
+    return provider
+
+
+__all__ = [
+    "CAPABILITY_FILES_ACCESS",
+    "CAPABILITY_FILES_ARTIFACT_STORE",
+    "CAPABILITY_FILES_POSTBOX_REFERENCES",
+    "CAPABILITY_FILES_TABULAR_CONTENT",
+    "FileAccessProvider",
+    "ManagedArtifactRef",
+    "ManagedArtifactStore",
+    "ManagedArtifactWriteRequest",
+    "ManagedTabularFile",
+    "ManagedTabularFileAccessError",
+    "ManagedTabularFileContent",
+    "ManagedTabularFileError",
+    "ManagedTabularFileNotFoundError",
+    "ManagedTabularFileProvider",
+    "ManagedTabularFileUnavailableError",
+    "ManagedTabularFileValidationError",
+    "PostboxFileReferenceProvider",
+    "PostboxFileReferenceRef",
+    "PostboxFileReferenceRequest",
+    "managed_tabular_file_provider",
+    "postbox_file_reference_provider",
+]
@@ -356,7 +356,7 @@ def consume_first_admin_credential(
        tenant = Tenant(
            slug=clean_tenant_slug,
            name=clean_tenant_name,
-            default_locale="en",
+            default_locale="de",
            settings={},
            is_active=True,
        )
@@ -0,0 +1,227 @@
+from __future__ import annotations
+
+from collections.abc import Mapping, Sequence
+from dataclasses import dataclass, field
+from datetime import datetime
+from typing import Literal, Protocol, runtime_checkable
+
+from govoplan_core.core.institutional import EvidenceReference, InstitutionalReference
+
+
+CAPABILITY_FORM_EVIDENCE_PREFIX = "forms_runtime.evidence."
+
+FormEvidenceState = Literal[
+    "accepted",
+    "pending",
+    "rejected",
+    "expired",
+    "revoked",
+    "unavailable",
+]
+
+_FORM_EVIDENCE_STATES = {
+    "accepted",
+    "pending",
+    "rejected",
+    "expired",
+    "revoked",
+    "unavailable",
+}
+
+
+class FormEvidenceContractError(ValueError):
+    """Stable error for provider-neutral Form evidence operations."""
+
+
+@dataclass(frozen=True, slots=True)
+class FormEvidenceGrantRequest:
+    """Request a short-lived, purpose-bound grant from an evidence owner."""
+
+    tenant_id: str
+    instance_id: str
+    definition_ref: InstitutionalReference
+    evidence_kind: str
+    purpose: str
+    idempotency_key: str
+    expires_at: datetime
+    custodian_ref: str | None = None
+    max_size_bytes: int | None = None
+    allowed_content_types: tuple[str, ...] = ()
+    metadata: Mapping[str, object] = field(default_factory=dict)
+
+    def __post_init__(self) -> None:
+        _require_text(self.tenant_id, "Form evidence tenant")
+        _require_text(self.instance_id, "Form evidence instance")
+        _require_text(self.evidence_kind, "Form evidence kind")
+        _require_text(self.purpose, "Form evidence purpose")
+        _require_text(self.idempotency_key, "Form evidence idempotency key")
+        if (
+            self.definition_ref.kind != "form"
+            or self.definition_ref.tenant_id != self.tenant_id
+            or not self.definition_ref.version
+        ):
+            raise FormEvidenceContractError(
+                "Form evidence grants require an exact same-tenant Form definition."
+            )
+        if self.expires_at.tzinfo is None or self.expires_at.utcoffset() is None:
+            raise FormEvidenceContractError(
+                "Form evidence grant expiry must include a timezone."
+            )
+        if self.max_size_bytes is not None and self.max_size_bytes <= 0:
+            raise FormEvidenceContractError(
+                "Form evidence grant size limits must be positive."
+            )
+        if any(not item.strip() for item in self.allowed_content_types):
+            raise FormEvidenceContractError(
+                "Form evidence content types cannot be empty."
+            )
+
+
+@dataclass(frozen=True, slots=True)
+class FormEvidenceGrant:
+    provider_id: str
+    grant_id: str
+    upload_token: str | None
+    upload_url: str
+    expires_at: datetime
+    max_size_bytes: int
+    allowed_content_types: tuple[str, ...] = ()
+    replayed: bool = False
+
+    def __post_init__(self) -> None:
+        for value, label in (
+            (self.provider_id, "Form evidence provider"),
+            (self.grant_id, "Form evidence grant"),
+            (self.upload_url, "Form evidence upload URL"),
+        ):
+            _require_text(value, label)
+        if self.upload_token is not None:
+            _require_text(self.upload_token, "Form evidence upload token")
+        if self.max_size_bytes <= 0:
+            raise FormEvidenceContractError(
+                "Form evidence grant size limits must be positive."
+            )
+        if self.expires_at.tzinfo is None or self.expires_at.utcoffset() is None:
+            raise FormEvidenceContractError(
+                "Form evidence grant expiry must include a timezone."
+            )
+
+
+@dataclass(frozen=True, slots=True)
+class FormEvidenceInspectionRequest:
+    tenant_id: str
+    instance_id: str
+    definition_ref: InstitutionalReference
+    evidence: EvidenceReference
+    purpose: str
+    final: bool
+
+    def __post_init__(self) -> None:
+        _require_text(self.tenant_id, "Form evidence tenant")
+        _require_text(self.instance_id, "Form evidence instance")
+        _require_text(self.purpose, "Form evidence purpose")
+        if self.definition_ref.tenant_id != self.tenant_id:
+            raise FormEvidenceContractError(
+                "Form evidence inspection cannot cross tenants."
+            )
+        if self.evidence.tenant_id != self.tenant_id:
+            raise FormEvidenceContractError(
+                "Form evidence inspection cannot cross tenants."
+            )
+
+
+@dataclass(frozen=True, slots=True)
+class FormEvidenceInspection:
+    provider_id: str
+    reference: EvidenceReference
+    state: FormEvidenceState
+    observed_at: datetime
+    retryable: bool = False
+    reason: str | None = None
+    metadata: Mapping[str, object] = field(default_factory=dict)
+
+    def __post_init__(self) -> None:
+        _require_text(self.provider_id, "Form evidence provider")
+        if self.state not in _FORM_EVIDENCE_STATES:
+            raise FormEvidenceContractError(
+                f"Unsupported Form evidence state: {self.state!r}."
+            )
+        if self.observed_at.tzinfo is None or self.observed_at.utcoffset() is None:
+            raise FormEvidenceContractError(
+                "Form evidence inspection time must include a timezone."
+            )
+        if self.state == "accepted" and self.retryable:
+            raise FormEvidenceContractError(
+                "Accepted Form evidence cannot require a retry."
+            )
+
+    @property
+    def accepted(self) -> bool:
+        return self.state == "accepted"
+
+
+@runtime_checkable
+class FormEvidenceProvider(Protocol):
+    provider_id: str
+
+    def supported_kinds(self) -> Sequence[str]: ...
+
+    def create_upload_grant(
+        self,
+        session: object,
+        principal: object,
+        *,
+        request: FormEvidenceGrantRequest,
+    ) -> FormEvidenceGrant: ...
+
+    def inspect_evidence(
+        self,
+        session: object,
+        principal: object,
+        *,
+        request: FormEvidenceInspectionRequest,
+    ) -> FormEvidenceInspection: ...
+
+
+def form_evidence_capability(provider_id: str) -> str:
+    normalized = str(provider_id or "").strip().lower().replace("-", "_")
+    if not normalized or not normalized.replace("_", "").isalnum():
+        raise FormEvidenceContractError("Invalid Form evidence provider id.")
+    return f"{CAPABILITY_FORM_EVIDENCE_PREFIX}{normalized}"
+
+
+def form_evidence_provider(
+    registry: object | None,
+    provider_id: str,
+) -> FormEvidenceProvider | None:
+    capability_name = form_evidence_capability(provider_id)
+    if registry is None or not hasattr(registry, "has_capability"):
+        return None
+    if not registry.has_capability(capability_name):
+        return None
+    if hasattr(registry, "require_capability"):
+        provider = registry.require_capability(capability_name)
+    elif hasattr(registry, "capability"):
+        provider = registry.capability(capability_name)
+    else:
+        return None
+    return provider if isinstance(provider, FormEvidenceProvider) else None
+
+
+def _require_text(value: str, label: str) -> None:
+    if not isinstance(value, str) or not value.strip():
+        raise FormEvidenceContractError(f"{label} is required.")
+
+
+__all__ = [
+    "CAPABILITY_FORM_EVIDENCE_PREFIX",
+    "FormEvidenceContractError",
+    "FormEvidenceGrant",
+    "FormEvidenceGrantRequest",
+    "FormEvidenceInspection",
+    "FormEvidenceInspectionRequest",
+    "FormEvidenceProvider",
+    "FormEvidenceState",
+    "form_evidence_capability",
+    "form_evidence_provider",
+]
@@ -0,0 +1,236 @@
+from __future__ import annotations
+
+from dataclasses import dataclass, field
+from typing import Literal, Mapping, cast
+
+
+InformationGovernanceAdoption = Literal[
+    "not_applicable",
+    "contract_only",
+    "partial",
+    "enforced",
+]
+
+INFORMATION_GOVERNANCE_ADOPTION_ORDER: tuple[InformationGovernanceAdoption, ...] = (
+    "not_applicable",
+    "contract_only",
+    "partial",
+    "enforced",
+)
+
+
+class InformationGovernanceDeclarationError(ValueError):
+    pass
+
+
+@dataclass(frozen=True, slots=True)
+class InformationGovernanceDimension:
+    """Truthful module-level adoption claim for one cross-cutting dimension."""
+
+    adoption: InformationGovernanceAdoption = "contract_only"
+    object_types: tuple[str, ...] = ()
+    evidence: tuple[str, ...] = ()
+    limitation: str | None = None
+
+    def __post_init__(self) -> None:
+        if self.adoption not in INFORMATION_GOVERNANCE_ADOPTION_ORDER:
+            raise InformationGovernanceDeclarationError(
+                f"Unsupported information-governance adoption: {self.adoption!r}."
+            )
+        for field_name in ("object_types", "evidence"):
+            values = getattr(self, field_name)
+            if len(values) != len(set(values)) or any(not item.strip() for item in values):
+                raise InformationGovernanceDeclarationError(
+                    f"Information-governance {field_name.replace('_', ' ')} must "
+                    "contain unique non-empty values."
+                )
+        if self.adoption == "enforced" and not self.evidence:
+            raise InformationGovernanceDeclarationError(
+                "An enforced information-governance dimension requires evidence."
+            )
+        if self.adoption in {"partial", "enforced"} and not self.object_types:
+            raise InformationGovernanceDeclarationError(
+                "Partial and enforced information-governance dimensions must "
+                "name their covered object types."
+            )
+        if self.adoption == "not_applicable" and self.object_types:
+            raise InformationGovernanceDeclarationError(
+                "A non-applicable information-governance dimension cannot declare object types."
+            )
+        if self.adoption in {"contract_only", "partial"} and not str(
+            self.limitation or ""
+        ).strip():
+            raise InformationGovernanceDeclarationError(
+                "Contract-only and partial adoption must state the current limitation."
+            )
+
+    def to_dict(self) -> dict[str, object]:
+        return {
+            "adoption": self.adoption,
+            "object_types": list(self.object_types),
+            "evidence": list(self.evidence),
+            "limitation": self.limitation,
+        }
+
+
+def _contract_only_dimension() -> InformationGovernanceDimension:
+    return InformationGovernanceDimension(
+        adoption="contract_only",
+        limitation=(
+            "The platform contract applies, but module-specific adoption evidence "
+            "has not been declared."
+        ),
+    )
+
+
+@dataclass(frozen=True, slots=True)
+class ModuleInformationGovernance:
+    """Cross-cutting data-use requirements and honest adoption evidence."""
+
+    temporal_browsing: InformationGovernanceDimension = field(
+        default_factory=_contract_only_dimension
+    )
+    purpose_aware_access: InformationGovernanceDimension = field(
+        default_factory=_contract_only_dimension
+    )
+    retention: InformationGovernanceDimension = field(
+        default_factory=_contract_only_dimension
+    )
+    institutional_context: InformationGovernanceDimension = field(
+        default_factory=_contract_only_dimension
+    )
+    current_authorization_for_historical_reads: bool = True
+    contract_version: str = "1"
+
+    def __post_init__(self) -> None:
+        if self.contract_version != "1":
+            raise InformationGovernanceDeclarationError(
+                "Unsupported module information-governance contract version."
+            )
+        if not self.current_authorization_for_historical_reads:
+            raise InformationGovernanceDeclarationError(
+                "Historical reads must always use current authorization."
+            )
+        for name, dimension in self.dimensions.items():
+            if not isinstance(dimension, InformationGovernanceDimension):
+                raise InformationGovernanceDeclarationError(
+                    f"Information-governance dimension {name!r} has an invalid value."
+                )
+
+    @property
+    def dimensions(self) -> Mapping[str, InformationGovernanceDimension]:
+        return {
+            "temporal_browsing": self.temporal_browsing,
+            "purpose_aware_access": self.purpose_aware_access,
+            "retention": self.retention,
+            "institutional_context": self.institutional_context,
+        }
+
+    def to_dict(self) -> dict[str, object]:
+        return {
+            "contract_version": self.contract_version,
+            "current_authorization_for_historical_reads": (
+                self.current_authorization_for_historical_reads
+            ),
+            "dimensions": {
+                name: dimension.to_dict()
+                for name, dimension in self.dimensions.items()
+            },
+        }
+
+
+def information_governance_from_mapping(
+    value: Mapping[str, object],
+) -> ModuleInformationGovernance:
+    raw_dimensions = value.get("dimensions")
+    if not isinstance(raw_dimensions, Mapping):
+        raise InformationGovernanceDeclarationError(
+            "Information-governance dimensions must be an object."
+        )
+
+    def dimension(name: str) -> InformationGovernanceDimension:
+        raw_dimension = raw_dimensions.get(name)
+        if not isinstance(raw_dimension, Mapping):
+            raise InformationGovernanceDeclarationError(
+                f"Information-governance dimension {name!r} must be an object."
+            )
+
+        def text_tuple(field_name: str) -> tuple[str, ...]:
+            raw_values = raw_dimension.get(field_name, ())
+            if not isinstance(raw_values, (list, tuple)):
+                raise InformationGovernanceDeclarationError(
+                    f"Information-governance {name}.{field_name} must be a list."
+                )
+            if any(not isinstance(item, str) for item in raw_values):
+                raise InformationGovernanceDeclarationError(
+                    f"Information-governance {name}.{field_name} must contain strings."
+                )
+            return tuple(raw_values)
+
+        raw_limitation = raw_dimension.get("limitation")
+        raw_adoption = raw_dimension.get("adoption") or "contract_only"
+        if not isinstance(raw_adoption, str):
+            raise InformationGovernanceDeclarationError(
+                f"Information-governance {name}.adoption must be a string."
+            )
+        if raw_limitation is not None and not isinstance(raw_limitation, str):
+            raise InformationGovernanceDeclarationError(
+                f"Information-governance {name}.limitation must be a string."
+            )
+        return InformationGovernanceDimension(
+            adoption=cast(
+                InformationGovernanceAdoption,
+                raw_adoption,
+            ),
+            object_types=text_tuple("object_types"),
+            evidence=text_tuple("evidence"),
+            limitation=raw_limitation,
+        )
+
+    current_authorization = value.get(
+        "current_authorization_for_historical_reads",
+        True,
+    )
+    if not isinstance(current_authorization, bool):
+        raise InformationGovernanceDeclarationError(
+            "current_authorization_for_historical_reads must be boolean."
+        )
+    return ModuleInformationGovernance(
+        contract_version=str(value.get("contract_version") or "1"),
+        current_authorization_for_historical_reads=current_authorization,
+        temporal_browsing=dimension("temporal_browsing"),
+        purpose_aware_access=dimension("purpose_aware_access"),
+        retention=dimension("retention"),
+        institutional_context=dimension("institutional_context"),
+    )
+
+
+def information_governance_maturity_issues(
+    declaration: ModuleInformationGovernance,
+    *,
+    maturity: str | None,
+) -> tuple[str, ...]:
+    if maturity not in {"reference_ready", "supported", "lts"}:
+        return ()
+    incomplete = [
+        name
+        for name, dimension in declaration.dimensions.items()
+        if dimension.adoption not in {"not_applicable", "enforced"}
+    ]
+    if not incomplete:
+        return ()
+    return (
+        f"Maturity {maturity!r} requires enforced or explicitly non-applicable "
+        "information governance for: " + ", ".join(incomplete),
+    )
+
+
+__all__ = [
+    "INFORMATION_GOVERNANCE_ADOPTION_ORDER",
+    "InformationGovernanceAdoption",
+    "InformationGovernanceDeclarationError",
+    "InformationGovernanceDimension",
+    "ModuleInformationGovernance",
+    "information_governance_from_mapping",
+    "information_governance_maturity_issues",
+]
@@ -0,0 +1,363 @@
+from __future__ import annotations
+
+from collections.abc import Mapping
+from dataclasses import dataclass
+import json
+import os
+from pathlib import Path
+import re
+from typing import Any
+
+
+DEPLOYMENT_CAPABILITIES_ENV = "GOVOPLAN_DEPLOYMENT_CAPABILITIES_PATH"
+MAX_CAPABILITY_DOCUMENT_BYTES = 256 * 1024
+CAPABILITY_STATES = frozenset(
+    {
+        "configured",
+        "available_unconfigured",
+        "externally_supplied",
+        "unavailable",
+    }
+)
+_ENV_REFERENCE_RE = re.compile(r"^env:[A-Za-z_][A-Za-z0-9_]*$")
+
+
+class InfrastructureCapabilityReceiptError(ValueError):
+    pass
+
+
+@dataclass(frozen=True, slots=True)
+class InfrastructureCapability:
+    id: str
+    label: str
+    state: str
+    source: str
+    detail: str
+    endpoint: Mapping[str, object]
+    secret_refs: tuple[str, ...]
+    dependent_modules: tuple[str, ...]
+
+    def to_dict(self) -> dict[str, object]:
+        return {
+            "id": self.id,
+            "label": self.label,
+            "state": self.state,
+            "source": self.source,
+            "detail": self.detail,
+            "endpoint": dict(self.endpoint),
+            "secret_refs": list(self.secret_refs),
+            "dependent_modules": list(self.dependent_modules),
+        }
+
+
+@dataclass(frozen=True, slots=True)
+class InfrastructurePostInstallTask:
+    id: str
+    resume_key: str
+    capability_id: str
+    state: str
+    owner_module: str
+    summary: str
+    required_inputs: tuple[str, ...]
+    secret_boundary: str
+
+    def to_dict(self) -> dict[str, object]:
+        return {
+            "id": self.id,
+            "resume_key": self.resume_key,
+            "capability_id": self.capability_id,
+            "state": self.state,
+            "owner_module": self.owner_module,
+            "summary": self.summary,
+            "required_inputs": list(self.required_inputs),
+            "secret_boundary": self.secret_boundary,
+        }
+
+
+@dataclass(frozen=True, slots=True)
+class InfrastructureCapabilityReceipt:
+    installation_id: str
+    profile: str
+    capabilities: tuple[InfrastructureCapability, ...]
+    post_install_tasks: tuple[InfrastructurePostInstallTask, ...]
+    schema_version: int = 1
+
+    def capability(self, capability_id: str) -> InfrastructureCapability | None:
+        return next(
+            (item for item in self.capabilities if item.id == capability_id),
+            None,
+        )
+
+    def tasks_for(
+        self,
+        *,
+        capability_id: str | None = None,
+        owner_module: str | None = None,
+    ) -> tuple[InfrastructurePostInstallTask, ...]:
+        return tuple(
+            item
+            for item in self.post_install_tasks
+            if (capability_id is None or item.capability_id == capability_id)
+            and (owner_module is None or item.owner_module == owner_module)
+        )
+
+    def to_dict(self) -> dict[str, object]:
+        return {
+            "schema_version": self.schema_version,
+            "installation_id": self.installation_id,
+            "profile": self.profile,
+            "capabilities": [item.to_dict() for item in self.capabilities],
+            "post_install_tasks": [
+                item.to_dict() for item in self.post_install_tasks
+            ],
+        }
+
+
+def load_infrastructure_capability_receipt(
+    path: Path | str | None = None,
+) -> InfrastructureCapabilityReceipt | None:
+    configured_path = path
+    if configured_path is None:
+        raw_path = os.getenv(DEPLOYMENT_CAPABILITIES_ENV, "").strip()
+        if not raw_path:
+            return None
+        configured_path = raw_path
+    return read_infrastructure_capability_receipt(Path(configured_path))
+
+
+def read_infrastructure_capability_receipt(
+    path: Path,
+) -> InfrastructureCapabilityReceipt:
+    if path.is_symlink() or not path.is_file():
+        raise InfrastructureCapabilityReceiptError(
+            "Deployment capability receipt is not a regular file."
+        )
+    try:
+        expected_size = path.stat().st_size
+        if expected_size > MAX_CAPABILITY_DOCUMENT_BYTES:
+            raise InfrastructureCapabilityReceiptError(
+                "Deployment capability receipt exceeds 256 KiB."
+            )
+        raw = path.read_bytes()
+    except OSError as exc:
+        raise InfrastructureCapabilityReceiptError(
+            "Deployment capability receipt could not be read."
+        ) from exc
+    if len(raw) != expected_size:
+        raise InfrastructureCapabilityReceiptError(
+            "Deployment capability receipt changed while being read."
+        )
+    try:
+        payload = json.loads(raw.decode("utf-8"))
+    except (UnicodeDecodeError, json.JSONDecodeError) as exc:
+        raise InfrastructureCapabilityReceiptError(
+            "Deployment capability receipt is not valid UTF-8 JSON."
+        ) from exc
+    return infrastructure_capability_receipt_from_mapping(payload)
+
+
+def infrastructure_capability_receipt_from_mapping(
+    payload: object,
+) -> InfrastructureCapabilityReceipt:
+    if (
+        not isinstance(payload, Mapping)
+        or type(payload.get("schema_version")) is not int
+        or payload.get("schema_version") != 1
+    ):
+        raise InfrastructureCapabilityReceiptError(
+            "Deployment capability receipt has an unsupported schema."
+        )
+    raw_capabilities = payload.get("capabilities")
+    if not isinstance(raw_capabilities, list) or len(raw_capabilities) > 100:
+        raise InfrastructureCapabilityReceiptError(
+            "Deployment capability receipt has invalid capabilities."
+        )
+    capabilities = tuple(_capability(item) for item in raw_capabilities)
+    capability_ids = [item.id for item in capabilities]
+    if len(capability_ids) != len(set(capability_ids)):
+        raise InfrastructureCapabilityReceiptError(
+            "Deployment capability receipt repeats a capability id."
+        )
+    raw_tasks = payload.get("post_install_tasks", [])
+    if not isinstance(raw_tasks, list) or len(raw_tasks) > 100:
+        raise InfrastructureCapabilityReceiptError(
+            "Deployment capability receipt has invalid post-install tasks."
+        )
+    tasks = tuple(_task(item) for item in raw_tasks)
+    known_capability_ids = set(capability_ids)
+    if any(item.capability_id not in known_capability_ids for item in tasks):
+        raise InfrastructureCapabilityReceiptError(
+            "Deployment post-install task references an unknown capability."
+        )
+    return InfrastructureCapabilityReceipt(
+        installation_id=_required_text(payload, "installation_id", maximum=100),
+        profile=_required_text(payload, "profile", maximum=100),
+        capabilities=capabilities,
+        post_install_tasks=tasks,
+    )
+
+
+def deployment_capability_status(
+    path: Path | str | None = None,
+) -> dict[str, object]:
+    try:
+        receipt = load_infrastructure_capability_receipt(path)
+    except InfrastructureCapabilityReceiptError as exc:
+        return _unavailable_status(configured=True, error=str(exc))
+    if receipt is None:
+        return _unavailable_status(configured=False, error=None)
+    return {
+        "configured": True,
+        "available": True,
+        **receipt.to_dict(),
+        "error": None,
+    }
+
+
+def _capability(value: object) -> InfrastructureCapability:
+    if not isinstance(value, Mapping):
+        raise InfrastructureCapabilityReceiptError(
+            "Deployment capability entries must be objects."
+        )
+    state = _required_text(value, "state", maximum=40)
+    if state not in CAPABILITY_STATES:
+        raise InfrastructureCapabilityReceiptError(
+            f"Deployment capability state is unsupported: {state!r}."
+        )
+    normalized_endpoint = _normalized_endpoint(value.get("endpoint", {}))
+    secret_refs = _string_list(value.get("secret_refs"), maximum_items=30)
+    if any(not _ENV_REFERENCE_RE.fullmatch(item) for item in secret_refs):
+        raise InfrastructureCapabilityReceiptError(
+            "Deployment capability secrets must use environment references."
+        )
+    return InfrastructureCapability(
+        id=_required_text(value, "id", maximum=120),
+        label=_required_text(value, "label", maximum=200),
+        state=state,
+        source=_required_text(value, "source", maximum=120),
+        detail=_required_text(value, "detail", maximum=1000),
+        endpoint=normalized_endpoint,
+        secret_refs=secret_refs,
+        dependent_modules=_string_list(
+            value.get("dependent_modules"),
+            maximum_items=100,
+        ),
+    )
+
+
+def _normalized_endpoint(value: object) -> dict[str, object]:
+    if not isinstance(value, Mapping) or len(value) > 10:
+        raise InfrastructureCapabilityReceiptError(
+            "Deployment capability endpoint metadata is invalid."
+        )
+    endpoint: dict[str, object] = {}
+    for key, raw in value.items():
+        if not isinstance(key, str) or not key or len(key) > 50:
+            raise InfrastructureCapabilityReceiptError(
+                "Deployment capability endpoint key is invalid."
+            )
+        if any(
+            marker in key.casefold()
+            for marker in ("password", "secret", "token", "credential")
+        ):
+            raise InfrastructureCapabilityReceiptError(
+                "Deployment capability endpoint metadata contains a secret field."
+            )
+        if key.casefold() == "port" and (
+            type(raw) is not int or not 1 <= raw <= 65535
+        ):
+            raise InfrastructureCapabilityReceiptError(
+                "Deployment capability endpoint port is invalid."
+            )
+        if isinstance(raw, bool) or raw is None:
+            endpoint[key] = raw
+        elif isinstance(raw, int):
+            endpoint[key] = raw
+        elif isinstance(raw, str) and len(raw) <= 500:
+            endpoint[key] = raw
+        else:
+            raise InfrastructureCapabilityReceiptError(
+                "Deployment capability endpoint value is invalid."
+            )
+    return endpoint
+
+
+def _task(value: object) -> InfrastructurePostInstallTask:
+    if not isinstance(value, Mapping):
+        raise InfrastructureCapabilityReceiptError(
+            "Deployment post-install task entries must be objects."
+        )
+    return InfrastructurePostInstallTask(
+        id=_required_text(value, "id", maximum=120),
+        resume_key=_required_text(value, "resume_key", maximum=240),
+        capability_id=_required_text(value, "capability_id", maximum=120),
+        state=_required_text(value, "state", maximum=40),
+        owner_module=_required_text(value, "owner_module", maximum=120),
+        summary=_required_text(value, "summary", maximum=1000),
+        required_inputs=_string_list(
+            value.get("required_inputs"),
+            maximum_items=30,
+        ),
+        secret_boundary=_required_text(
+            value,
+            "secret_boundary",
+            maximum=120,
+        ),
+    )
+
+
+def _required_text(
+    value: Mapping[str, Any],
+    key: str,
+    *,
+    maximum: int,
+) -> str:
+    raw = value.get(key)
+    text = str(raw).strip() if raw is not None else ""
+    if not text or len(text) > maximum:
+        raise InfrastructureCapabilityReceiptError(
+            f"Deployment capability field {key!r} is invalid."
+        )
+    return text
+
+
+def _string_list(value: object, *, maximum_items: int) -> tuple[str, ...]:
+    if not isinstance(value, list) or len(value) > maximum_items:
+        raise InfrastructureCapabilityReceiptError(
+            "Deployment capability list field is invalid."
+        )
+    result: list[str] = []
+    for item in value:
+        if not isinstance(item, str) or not item.strip() or len(item) > 500:
+            raise InfrastructureCapabilityReceiptError(
+                "Deployment capability list item is invalid."
+            )
+        result.append(item.strip())
+    return tuple(result)
+
+
+def _unavailable_status(*, configured: bool, error: str | None) -> dict[str, object]:
+    return {
+        "configured": configured,
+        "available": False,
+        "schema_version": None,
+        "installation_id": None,
+        "profile": None,
+        "capabilities": [],
+        "post_install_tasks": [],
+        "error": error,
+    }
+
+
+__all__ = [
+    "CAPABILITY_STATES",
+    "DEPLOYMENT_CAPABILITIES_ENV",
+    "InfrastructureCapability",
+    "InfrastructureCapabilityReceipt",
+    "InfrastructureCapabilityReceiptError",
+    "InfrastructurePostInstallTask",
+    "deployment_capability_status",
+    "infrastructure_capability_receipt_from_mapping",
+    "load_infrastructure_capability_receipt",
+    "read_infrastructure_capability_receipt",
+]
@@ -698,12 +698,15 @@ def _validate_module_catalog_trust(
            "A module catalog source is configured without a trusted keyring file.",
            "Pin the published GovOPlaN catalog keyring locally and set GOVOPLAN_MODULE_PACKAGE_CATALOG_TRUSTED_KEYS_FILE.",
        )
-    if not _clean(env.get("GOVOPLAN_MODULE_PACKAGE_CATALOG_APPROVED_CHANNEL")):
+    if not (
+        _clean(env.get("GOVOPLAN_MODULE_PACKAGE_CATALOG_APPROVED_CHANNELS"))
+        or _clean(env.get("GOVOPLAN_MODULE_PACKAGE_CATALOG_APPROVED_CHANNEL"))
+    ):
        collector.add(
            "error",
-            "GOVOPLAN_MODULE_PACKAGE_CATALOG_APPROVED_CHANNEL",
+            "GOVOPLAN_MODULE_PACKAGE_CATALOG_APPROVED_CHANNELS",
            "A module catalog source is configured without an approved release channel.",
-            "Set GOVOPLAN_MODULE_PACKAGE_CATALOG_APPROVED_CHANNEL=stable or another approved deployment channel.",
+            "Set GOVOPLAN_MODULE_PACKAGE_CATALOG_APPROVED_CHANNELS=stable or another approved deployment channel.",
        )


@@ -734,6 +737,8 @@ CALENDAR_OUTBOX_TERMINAL_RETENTION_DAYS=90
 PLATFORM_EVENT_OUTBOX_MAX_ATTEMPTS=8
 PLATFORM_EVENT_OUTBOX_TERMINAL_RETENTION_DAYS=90
 SCHEDULING_CANCELLATION_NOTICE_DAYS=30
+SCHEDULING_PUBLIC_SELF_ENROLLMENT_ENABLED=true
+SCHEDULING_PUBLIC_SELF_ENROLLMENT_MAX_CAPACITY=10000

 # Deployment-wide connector egress policy. Enable private networks only when
 # this installation intentionally integrates with internal services.
@@ -777,7 +782,7 @@ DEV_MAILBOX_API_ENABLED=false

 GOVOPLAN_MODULE_PACKAGE_CATALOG_URL=https://govoplan.add-ideas.de/catalogs/v1/channels/stable.json
 GOVOPLAN_MODULE_PACKAGE_CATALOG_TRUSTED_KEYS_FILE=/etc/govoplan/catalog-keyring.json
-GOVOPLAN_MODULE_PACKAGE_CATALOG_APPROVED_CHANNEL=stable
+GOVOPLAN_MODULE_PACKAGE_CATALOG_APPROVED_CHANNELS=stable
 """


@@ -815,6 +820,8 @@ CALENDAR_OUTBOX_TERMINAL_RETENTION_DAYS=90
 PLATFORM_EVENT_OUTBOX_MAX_ATTEMPTS=8
 PLATFORM_EVENT_OUTBOX_TERMINAL_RETENTION_DAYS=90
 SCHEDULING_CANCELLATION_NOTICE_DAYS=30
+SCHEDULING_PUBLIC_SELF_ENROLLMENT_ENABLED=true
+SCHEDULING_PUBLIC_SELF_ENROLLMENT_MAX_CAPACITY=10000

 GOVOPLAN_CONNECTOR_ALLOW_PRIVATE_NETWORKS=true
 GOVOPLAN_CONNECTOR_MAX_STRUCTURED_RESPONSE_BYTES=16777216
@@ -9,6 +9,7 @@ from typing import Protocol, runtime_checkable
 CAPABILITY_MAIL_DELIVERY_OUTBOX = "mail.delivery_outbox"
 CAPABILITY_MAIL_NOTIFICATION_DELIVERY = "mail.notificationDelivery"
 CAPABILITY_MAIL_BOUNCE_PROCESSING = "mail.bounce_processing"
+CAPABILITY_MAIL_POSTBOX_BRIDGE = "mail.postbox_bridge"


@dataclass(frozen=True, slots=True)
@@ -81,6 +82,28 @@ class MailBounceObservationRef:
    evidence: Mapping[str, object] = field(default_factory=dict)


+@dataclass(frozen=True, slots=True)
+class MailPostboxBridgeRequest:
+    tenant_id: str
+    target: object
+    profile_id: str
+    folder: str
+    uid: str
+    uidvalidity: str
+    raw_message: bytes
+    classification: str = "internal"
+    metadata: Mapping[str, object] = field(default_factory=dict)
+
+
+@dataclass(frozen=True, slots=True)
+class MailPostboxBridgeResult:
+    postbox_id: str
+    message_id: str
+    delivery_id: str
+    duplicate: bool
+    source_digest: str
+
+
@runtime_checkable
 class MailBounceProcessingProvider(Protocol):
    """Mail-owned DSN ingestion and durable correlation boundary."""
@@ -116,6 +139,17 @@ class MailBounceProcessingProvider(Protocol):
        ...


+@runtime_checkable
+class MailPostboxBridgeProvider(Protocol):
+    """Translate one immutable Mail observation into Postbox delivery."""
+
+    def bridge_message(
+        self,
+        session: object,
+        request: MailPostboxBridgeRequest,
+    ) -> MailPostboxBridgeResult: ...
+
+
 def notification_mail_delivery_provider(
    registry: object | None,
 ) -> NotificationMailDeliveryProvider | None:
@@ -150,3 +184,21 @@ def mail_bounce_processing_provider(
            "MailBounceProcessingProvider"
        )
    return provider
+
+
+def mail_postbox_bridge_provider(
+    registry: object | None,
+) -> MailPostboxBridgeProvider | None:
+    if (
+        registry is None
+        or not hasattr(registry, "has_capability")
+        or not registry.has_capability(CAPABILITY_MAIL_POSTBOX_BRIDGE)
+    ):
+        return None
+    provider = registry.require_capability(CAPABILITY_MAIL_POSTBOX_BRIDGE)
+    if not isinstance(provider, MailPostboxBridgeProvider):
+        raise TypeError(
+            "mail.postbox_bridge provider does not implement "
+            "MailPostboxBridgeProvider"
+        )
+    return provider
@@ -3,7 +3,7 @@ from __future__ import annotations
 from collections import defaultdict
 from collections.abc import Iterable, Mapping
 from contextlib import AbstractContextManager, closing
-from dataclasses import dataclass, field
+from dataclasses import dataclass, field, replace
 from datetime import UTC, datetime
 from importlib import metadata
 import hashlib
@@ -18,6 +18,7 @@ import sqlite3
 import stat
 import subprocess  # nosec B404 - installer commands are structured and policy-validated before execution.
 import sys
+import tempfile
 import tomllib
 from typing import Any, Literal
 import time
@@ -62,6 +63,7 @@ MIGRATION_TASK_PHASES = (
 MIGRATION_TASK_MUTATING_PHASES = {"pre_migration_prepare", "post_migration_backfill"}
 MIGRATION_TASK_REVIEW_SAFETY = {"requires_review", "forward_only", "destructive"}
 MIGRATION_TASK_BLOCKING_SAFETY = {"forward_only", "destructive"}
+MAX_PACKAGE_ARTIFACT_BYTES = 512 * 1024 * 1024


@dataclass(frozen=True, slots=True)
@@ -464,14 +466,20 @@ def _package_target_action_preflight_issues(
            "Python installs must include the distribution package name so rollback can uninstall newly added packages.",
            item.module_id,
        ))
-    if item.python_ref and not _looks_pinned_dependency_ref(item.python_ref):
+    if item.python_ref and not (
+        _looks_pinned_dependency_ref(item.python_ref)
+        or _artifact_ref_is_digest_pinned(item, "python", item.python_ref)
+    ):
        issues.append(ModuleInstallerIssue(
            "blocker",
            "unpinned_python_ref",
            "Python install refs must be pinned to an exact version or tagged git ref.",
            item.module_id,
        ))
-    if item.webui_ref and not _looks_pinned_dependency_ref(item.webui_ref):
+    if item.webui_ref and not (
+        _looks_pinned_dependency_ref(item.webui_ref)
+        or _artifact_ref_is_digest_pinned(item, "webui", item.webui_ref)
+    ):
        issues.append(ModuleInstallerIssue(
            "blocker",
            "unpinned_webui_ref",
@@ -481,6 +489,23 @@ def _package_target_action_preflight_issues(
    return tuple(issues)


+def _artifact_ref_is_digest_pinned(
+    item: ModuleInstallPlanItem,
+    kind: str,
+    package_ref: str,
+) -> bool:
+    metadata = _artifact_metadata(item.artifact_integrity, kind)
+    if metadata is None:
+        return False
+    expected_ref = _artifact_text(metadata, "ref") or _artifact_text(metadata, "expected_ref")
+    sha256 = _artifact_text(metadata, "sha256")
+    return bool(
+        expected_ref == package_ref
+        and sha256
+        and re.fullmatch(r"[0-9a-f]{64}", sha256.lower())
+    )
+
+
 def _frontend_rebuild_preflight_issues(
    *,
    frontend_rebuild_required: bool,
@@ -519,6 +544,7 @@ def run_module_install_plan(
 ) -> ModuleInstallerRunResult:
    maintenance_mode = saved_maintenance_mode(session)
    effective_runtime_dir = runtime_dir or default_installer_runtime_dir(database_url)
+    effective_plan = plan
    preflight = module_install_preflight(
        plan=plan,
        available=available,
@@ -532,9 +558,30 @@ def run_module_install_plan(
    if not preflight.allowed:
        raise ModuleInstallerError("Install preflight is blocked: " + "; ".join(issue.message for issue in preflight.issues if issue.severity == "blocker"))

+    if not dry_run:
+        effective_plan = acquire_catalog_package_artifacts(
+            plan,
+            runtime_dir=effective_runtime_dir,
+        )
+        preflight = module_install_preflight(
+            plan=effective_plan,
+            available=available,
+            current_enabled=current_enabled,
+            desired_enabled=desired_enabled,
+            maintenance_mode=maintenance_mode.enabled,
+            session=session,
+            webui_root=webui_root,
+            runtime_dir=effective_runtime_dir,
+        )
+        if not preflight.allowed:
+            raise ModuleInstallerError(
+                "Install preflight is blocked after artifact acquisition: "
+                + "; ".join(issue.message for issue in preflight.issues if issue.severity == "blocker")
+            )
+
    state = _prepare_module_install_run(
        session=session,
-        plan=plan,
+        plan=effective_plan,
        preflight=preflight,
        database_url=database_url,
        effective_runtime_dir=effective_runtime_dir,
@@ -556,7 +603,7 @@ def run_module_install_plan(

    executed, failed_error = _execute_module_install_run(
        session=session,
-        plan=plan,
+        plan=effective_plan,
        available=available,
        effective_runtime_dir=effective_runtime_dir,
        state=state,
@@ -566,7 +613,7 @@ def run_module_install_plan(
        return _failed_module_install_run_result(
            session=session,
            state=state,
-            plan=plan,
+            plan=effective_plan,
            executed=executed,
            failed_error=failed_error,
            effective_runtime_dir=effective_runtime_dir,
@@ -578,7 +625,7 @@ def run_module_install_plan(

    return _applied_module_install_run_result(
        session=session,
-        plan=plan,
+        plan=effective_plan,
        desired_enabled=desired_enabled,
        activate_installed_modules=activate_installed_modules,
        remove_uninstalled_modules_from_desired=remove_uninstalled_modules_from_desired,
@@ -1568,9 +1615,11 @@ def _structured_item_commands(
    webui_changed = False
    if item.action in PACKAGE_TARGET_ACTIONS:
        if item.python_ref:
-            commands.append(_structured_command([sys.executable, "-m", "pip", "install", item.python_ref], source="module-plan.python"))
+            python_source = _verified_artifact_install_ref(item, "python") or item.python_ref
+            commands.append(_structured_command([sys.executable, "-m", "pip", "install", python_source], source="module-plan.python"))
        if item.webui_package and item.webui_ref and webui_root is not None:
-            commands.append(_structured_command([npm_bin, "pkg", "set", f"dependencies.{item.webui_package}={item.webui_ref}"], cwd=webui_root, source="module-plan.webui"))
+            webui_source = _verified_artifact_install_ref(item, "webui") or item.webui_ref
+            commands.append(_structured_command([npm_bin, "pkg", "set", f"dependencies.{item.webui_package}={webui_source}"], cwd=webui_root, source="module-plan.webui"))
            webui_changed = True
    elif item.action == "uninstall":
        if item.python_package:
@@ -1581,6 +1630,14 @@ def _structured_item_commands(
    return tuple(commands), webui_changed


+def _verified_artifact_install_ref(item: ModuleInstallPlanItem, kind: str) -> str | None:
+    metadata = _artifact_metadata(item.artifact_integrity, kind)
+    path = _artifact_path(metadata) if metadata is not None else None
+    if path is None:
+        return None
+    return path.as_uri() if kind == "webui" else str(path)
+
+
 def _structured_webui_followup_commands(
    *,
    webui_changed: bool,
@@ -1932,9 +1989,7 @@ def _package_catalog_preflight_issues(
        return ()
    catalog_items = tuple(item for item in package_items if item.source == "catalog")
    try:
-        from govoplan_core.core.module_package_catalog import validate_module_package_catalog
-
-        result = validate_module_package_catalog()
+        result = _validate_catalog_for_plan(catalog_items)
    except Exception as exc:
        return _catalog_validation_exception_issues(exc, catalog_items=bool(catalog_items))
    issues = list(_catalog_validation_result_issues(result, catalog_items=bool(catalog_items)))
@@ -1942,10 +1997,33 @@ def _package_catalog_preflight_issues(
        return tuple(issues)
    issues.extend(_catalog_warning_issues(result))
    if catalog_items:
+        issues.extend(_catalog_plan_binding_issues(catalog_items, result))
        issues.extend(_selected_catalog_interface_issues(catalog_items, result, available))
    return tuple(issues)


+def _validate_catalog_for_plan(
+    catalog_items: tuple[ModuleInstallPlanItem, ...],
+) -> dict[str, object]:
+    from govoplan_core.core.module_package_catalog import (
+        OFFICIAL_MODULE_PACKAGE_CATALOG_URL,
+        validate_module_package_catalog,
+        validate_official_module_package_catalog,
+    )
+
+    configured = validate_module_package_catalog()
+    if configured.get("configured") or not catalog_items:
+        return configured
+    sources = {
+        str(item.catalog.get("source") or "")
+        for item in catalog_items
+        if isinstance(item.catalog, Mapping)
+    }
+    if sources == {OFFICIAL_MODULE_PACKAGE_CATALOG_URL}:
+        return validate_official_module_package_catalog()
+    return configured
+
+
 def _catalog_validation_exception_issues(exc: Exception, *, catalog_items: bool) -> tuple[ModuleInstallerIssue, ...]:
    severity: IssueSeverity = "blocker" if catalog_items else "warning"
    return (ModuleInstallerIssue(
@@ -1985,6 +2063,97 @@ def _catalog_warning_issues(result: Mapping[str, object]) -> tuple[ModuleInstall
    return tuple(ModuleInstallerIssue("warning", "catalog_warning", str(warning)) for warning in warnings)


+def _catalog_plan_binding_issues(
+    items: tuple[ModuleInstallPlanItem, ...],
+    validation: Mapping[str, object],
+) -> tuple[ModuleInstallerIssue, ...]:
+    """Require every trusted plan row to match its signed catalog entry exactly."""
+
+    modules = _catalog_modules_by_id(validation)
+    issues: list[ModuleInstallerIssue] = []
+    for item in items:
+        entry = modules.get(item.module_id)
+        if entry is None or entry.get("action") not in PACKAGE_TARGET_ACTIONS:
+            issues.append(ModuleInstallerIssue(
+                "blocker",
+                "catalog_plan_entry_missing",
+                f"The validated catalog no longer contains an install or update entry for {item.module_id!r}.",
+                item.module_id,
+            ))
+            continue
+        mismatches = _catalog_plan_entry_mismatches(item, entry, validation)
+        if mismatches:
+            issues.append(ModuleInstallerIssue(
+                "blocker",
+                "catalog_plan_binding_mismatch",
+                (
+                    "The saved package plan differs from its validated signed catalog entry "
+                    f"for: {', '.join(mismatches)}. Remove and add the catalog item again."
+                ),
+                item.module_id,
+            ))
+    return tuple(issues)
+
+
+def _catalog_plan_entry_mismatches(
+    item: ModuleInstallPlanItem,
+    entry: Mapping[str, object],
+    validation: Mapping[str, object],
+) -> tuple[str, ...]:
+    mismatches: list[str] = []
+    for attribute in ("python_package", "python_ref", "webui_package", "webui_ref"):
+        if getattr(item, attribute) != _catalog_optional_string(entry, attribute):
+            mismatches.append(attribute)
+
+    if _catalog_integrity_identity(item.artifact_integrity) != _catalog_integrity_identity(
+        entry.get("artifact_integrity")
+    ):
+        mismatches.append("artifact_integrity")
+
+    catalog = item.catalog if isinstance(item.catalog, Mapping) else {}
+    expected_snapshot = {
+        "source": validation.get("source") or validation.get("path"),
+        "channel": validation.get("channel"),
+        "sequence": validation.get("sequence"),
+        "signed": bool(validation.get("signed")),
+        "trusted": bool(validation.get("trusted")),
+        "key_id": validation.get("key_id"),
+    }
+    for attribute, expected in expected_snapshot.items():
+        actual = catalog.get(attribute)
+        if actual != expected:
+            mismatches.append(f"catalog.{attribute}")
+    return tuple(mismatches)
+
+
+def _catalog_integrity_identity(value: object) -> dict[str, dict[str, object]]:
+    if not isinstance(value, Mapping):
+        return {}
+    identity: dict[str, dict[str, object]] = {}
+    for kind in ("python", "webui"):
+        raw = value.get(kind)
+        if not isinstance(raw, Mapping):
+            continue
+        identity[kind] = {
+            field: raw.get(field)
+            for field in (
+                "ref",
+                "url",
+                "filename",
+                "sha256",
+                "size",
+                "integrity",
+                "sbom_url",
+                "provenance_url",
+                "registry_identity",
+                "git_ref",
+                "source_commit",
+            )
+            if raw.get(field) is not None
+        }
+    return identity
+
+
 def _module_install_target_plan(
    plan: ModuleInstallPlan,
    available: Mapping[str, ModuleManifest],
@@ -2817,12 +2986,15 @@ def _topological_cycle_ids(incoming: Mapping[str, set[str]]) -> tuple[str, ...]:
 def _catalog_modules_for_target_plan(
    planned_items: tuple[ModuleInstallPlanItem, ...],
 ) -> dict[str, Mapping[str, object]]:
-    if not any(item.source == "catalog" and item.action in PACKAGE_TARGET_ACTIONS for item in planned_items):
+    catalog_items = tuple(
+        item
+        for item in planned_items
+        if item.source == "catalog" and item.action in PACKAGE_TARGET_ACTIONS
+    )
+    if not catalog_items:
        return {}
    try:
-        from govoplan_core.core.module_package_catalog import validate_module_package_catalog
-
-        result = validate_module_package_catalog()
+        result = _validate_catalog_for_plan(catalog_items)
    except Exception:
        return {}
    if result.get("valid") is not True:
@@ -3772,6 +3944,156 @@ def _configured_require_artifact_integrity() -> bool:
    return os.getenv("GOVOPLAN_MODULE_INSTALLER_REQUIRE_ARTIFACT_INTEGRITY", "").strip().lower() in {"1", "true", "yes", "on"}


+def acquire_catalog_package_artifacts(
+    plan: ModuleInstallPlan,
+    *,
+    runtime_dir: Path,
+) -> ModuleInstallPlan:
+    """Materialize trusted catalog archives before package mutation."""
+
+    items: list[ModuleInstallPlanItem] = []
+    for item in plan.items:
+        if item.status != "planned" or item.action not in PACKAGE_TARGET_ACTIONS:
+            items.append(item)
+            continue
+        raw_integrity = item.artifact_integrity
+        if not isinstance(raw_integrity, Mapping):
+            items.append(item)
+            continue
+        integrity: dict[str, object] = dict(raw_integrity)
+        changed = False
+        for kind in ("python", "webui"):
+            metadata = _artifact_metadata(integrity, kind)
+            if metadata is None or _artifact_path(metadata) is not None:
+                continue
+            if not _catalog_artifact_acquisition_ready(item, metadata):
+                continue
+            updated = dict(metadata)
+            updated["artifact_path"] = str(
+                _acquire_package_artifact(
+                    metadata,
+                    runtime_dir=runtime_dir,
+                    module_id=item.module_id,
+                    kind=kind,
+                )
+            )
+            integrity[kind] = updated
+            changed = True
+        items.append(replace(item, artifact_integrity=integrity) if changed else item)
+    return replace(plan, items=tuple(items))
+
+
+def _catalog_artifact_acquisition_ready(
+    item: ModuleInstallPlanItem,
+    metadata: Mapping[str, object],
+) -> bool:
+    catalog = item.catalog
+    if (
+        item.source != "catalog"
+        or not isinstance(catalog, Mapping)
+        or catalog.get("signed") is not True
+        or catalog.get("trusted") is not True
+    ):
+        return False
+    url = _artifact_text(metadata, "url")
+    filename = _artifact_text(metadata, "filename")
+    sha256 = _artifact_text(metadata, "sha256")
+    size = metadata.get("size")
+    return bool(
+        url
+        and url.startswith("https://")
+        and filename
+        and Path(filename).name == filename
+        and sha256
+        and re.fullmatch(r"[0-9a-f]{64}", sha256.lower())
+        and isinstance(size, int)
+        and not isinstance(size, bool)
+        and 0 < size <= MAX_PACKAGE_ARTIFACT_BYTES
+    )
+
+
+def _acquire_package_artifact(
+    metadata: Mapping[str, object],
+    *,
+    runtime_dir: Path,
+    module_id: str,
+    kind: str,
+) -> Path:
+    url = validate_http_url(_artifact_text(metadata, "url") or "", label=f"{kind.capitalize()} package URL")
+    if not url.startswith("https://"):
+        raise ModuleInstallerError(f"{kind.capitalize()} package URL must use HTTPS.")
+    filename = _artifact_text(metadata, "filename") or ""
+    expected_sha256 = (_artifact_text(metadata, "sha256") or "").lower()
+    expected_size = metadata.get("size")
+    if (
+        not filename
+        or Path(filename).name != filename
+        or re.fullmatch(r"[A-Za-z0-9][A-Za-z0-9._+!-]{0,255}", filename) is None
+        or re.fullmatch(r"[0-9a-f]{64}", expected_sha256) is None
+        or not isinstance(expected_size, int)
+        or isinstance(expected_size, bool)
+        or not 0 < expected_size <= MAX_PACKAGE_ARTIFACT_BYTES
+    ):
+        raise ModuleInstallerError(f"Catalog artifact metadata is incomplete for {module_id}/{kind}.")
+
+    cache_root = runtime_dir / "artifacts"
+    _ensure_private_artifact_directory(cache_root)
+    digest_root = cache_root / expected_sha256
+    _ensure_private_artifact_directory(digest_root)
+    target = digest_root / filename
+    if target.exists() or target.is_symlink():
+        if target.is_symlink() or not target.is_file():
+            raise ModuleInstallerError(f"Cached package artifact is not a regular file: {target}")
+        if target.stat().st_size != expected_size or _sha256_file(target) != expected_sha256:
+            raise ModuleInstallerError(f"Cached package artifact does not match its catalog identity: {target}")
+        return target
+
+    try:
+        response = fetch_http(
+            url,
+            timeout=float(os.getenv("GOVOPLAN_MODULE_INSTALLER_DOWNLOAD_TIMEOUT_SECONDS", "120")),
+            label=f"{module_id} {kind} package URL",
+            max_bytes=min(expected_size + 1, MAX_PACKAGE_ARTIFACT_BYTES),
+        )
+    except (OSError, ValueError) as exc:
+        raise ModuleInstallerError(f"Could not download {module_id} {kind} package: {exc}") from exc
+    if response.status < 200 or response.status >= 300:
+        raise ModuleInstallerError(f"Could not download {module_id} {kind} package: HTTP {response.status}.")
+    if len(response.body) != expected_size or hashlib.sha256(response.body).hexdigest() != expected_sha256:
+        raise ModuleInstallerError(f"Downloaded {module_id} {kind} package does not match its signed catalog identity.")
+
+    temporary_path: Path | None = None
+    try:
+        with tempfile.NamedTemporaryFile(
+            mode="wb",
+            prefix=f".{filename}.",
+            suffix=".tmp",
+            dir=digest_root,
+            delete=False,
+        ) as handle:
+            temporary_path = Path(handle.name)
+            handle.write(response.body)
+            handle.flush()
+            os.fsync(handle.fileno())
+        temporary_path.chmod(0o600)
+        os.replace(temporary_path, target)
+        target.chmod(0o600)
+    except OSError as exc:
+        if temporary_path is not None:
+            temporary_path.unlink(missing_ok=True)
+        raise ModuleInstallerError(f"Could not cache {module_id} {kind} package.") from exc
+    return target
+
+
+def _ensure_private_artifact_directory(path: Path) -> None:
+    if path.is_symlink():
+        raise ModuleInstallerError(f"Installer artifact cache must not be a symlink: {path}")
+    path.mkdir(parents=True, mode=0o700, exist_ok=True)
+    path.chmod(0o700)
+    if not path.is_dir() or stat.S_IMODE(path.stat().st_mode) != 0o700:
+        raise ModuleInstallerError(f"Installer artifact cache is not private: {path}")
+
+
 def _verify_artifact_integrity(
    planned_items: tuple[ModuleInstallPlanItem, ...],
    *,
@@ -3839,7 +4161,17 @@ def _verify_artifact_metadata(
    }
    if package_name:
        record["package"] = package_name
-    for key in ("sha256", "sbom_url", "provenance_url", "registry_identity", "git_ref"):
+    for key in (
+        "sha256",
+        "url",
+        "filename",
+        "integrity",
+        "sbom_url",
+        "provenance_url",
+        "registry_identity",
+        "git_ref",
+        "source_commit",
+    ):
        value = _artifact_text(metadata, key)
        if value:
            record[key] = value
@@ -3860,6 +4192,15 @@ def _verify_artifact_metadata(
            item.module_id,
        ))
        return record, tuple(issues)
+    if artifact_path is None and _catalog_artifact_acquisition_ready(item, metadata):
+        record["acquisition_pending"] = True
+        issues.append(ModuleInstallerIssue(
+            "info",
+            "artifact_acquisition_pending",
+            f"{kind.capitalize()} artifact will be downloaded and verified by the installer daemon before package mutation.",
+            item.module_id,
+        ))
+        return record, tuple(issues)
    if artifact_path is None:
        issues.append(ModuleInstallerIssue(
            "blocker" if require_verified else "warning",
@@ -6,6 +6,7 @@ from collections import defaultdict
 from collections.abc import Mapping
 from dataclasses import dataclass
 from datetime import UTC, datetime
+from importlib.resources import files
 from pathlib import Path
 import json
 import os
@@ -17,6 +18,10 @@ from cryptography.hazmat.primitives import serialization
 from cryptography.hazmat.primitives.asymmetric.ed25519 import Ed25519PrivateKey, Ed25519PublicKey

 from govoplan_core.core.versioning import format_version_range, version_range_is_valid, version_satisfies_range
+from govoplan_core.core.information_governance import (
+    information_governance_from_mapping,
+    information_governance_maturity_issues,
+)
 from govoplan_core.core.provider_governance import (
    external_provider_from_mapping,
    module_architecture_from_mapping,
@@ -25,6 +30,11 @@ from govoplan_core.core.provider_governance import (
 from govoplan_core.security.http_fetch import fetch_http_text, is_http_url

 _INTERFACE_NAME_RE = re.compile(r"^[a-z][a-z0-9_]*(?:\.[a-z][a-z0-9_]*)+$")
+_SHA256_RE = re.compile(r"^[0-9a-f]{64}$")
+_ARTIFACT_FILENAME_RE = re.compile(r"^[A-Za-z0-9][A-Za-z0-9._+!-]{0,255}$")
+_SOURCE_REPOSITORY_RE = re.compile(r"^[A-Za-z0-9][A-Za-z0-9._/-]{0,254}$")
+_SOURCE_REF_RE = re.compile(r"^[A-Za-z0-9][A-Za-z0-9._/+!-]{0,127}$")
+_SOURCE_COMMIT_RE = re.compile(r"^(?:[0-9a-f]{40}|[0-9a-f]{64})$")
 CATALOG_MIGRATION_SAFETY = ("automatic", "requires_review", "forward_only", "destructive")
 CATALOG_MIGRATION_TASK_PHASES = (
    "pre_migration_check",
@@ -32,6 +42,8 @@ CATALOG_MIGRATION_TASK_PHASES = (
    "post_migration_backfill",
    "post_migration_verify",
 )
+OFFICIAL_MODULE_PACKAGE_CATALOG_URL = "https://govoplan.add-ideas.de/catalogs/v1/channels/stable.json"
+OFFICIAL_MODULE_PACKAGE_CATALOG_CHANNEL = "stable"


@dataclass(frozen=True, slots=True)
@@ -97,6 +109,18 @@ def validate_module_package_catalog(
    return _valid_catalog_result(catalog_source, state)


+def validate_official_module_package_catalog() -> dict[str, object]:
+    """Read the public GovOPlaN directory against Core's pinned trust anchor."""
+
+    keyring = files("govoplan_core").joinpath("resources/catalog-keyring.json").read_text(encoding="utf-8")
+    return validate_module_package_catalog(
+        OFFICIAL_MODULE_PACKAGE_CATALOG_URL,
+        require_trusted=True,
+        approved_channels=(OFFICIAL_MODULE_PACKAGE_CATALOG_CHANNEL,),
+        trusted_keys=_parse_trusted_keys(keyring),
+    )
+
+
 def _catalog_validation_state(
    source: Path | str | None,
    *,
@@ -319,7 +343,10 @@ def _configured_require_signature() -> bool:


 def _configured_approved_channels() -> tuple[str, ...]:
-    value = os.getenv("GOVOPLAN_MODULE_PACKAGE_CATALOG_APPROVED_CHANNELS", "").strip()
+    value = (
+        os.getenv("GOVOPLAN_MODULE_PACKAGE_CATALOG_APPROVED_CHANNELS", "").strip()
+        or os.getenv("GOVOPLAN_MODULE_PACKAGE_CATALOG_APPROVED_CHANNEL", "").strip()
+    )
    if not value:
        return ()
    return tuple(item.strip() for item in value.split(",") if item.strip())
@@ -628,8 +655,29 @@ def _normalize_catalog_item(value: Any) -> dict[str, object]:
        "requires_interfaces": _normalize_catalog_interface_requirements(value.get("requires_interfaces"), module_id=module_id),
        "notes": _optional_str(value, "notes"),
        "tags": _string_list(value.get("tags")),
+        "availability": _catalog_availability(value, module_id=module_id),
+        "availability_reason": _optional_str(value, "availability_reason"),
+        "configuration_requirements": _string_list(value.get("configuration_requirements")),
+        "permissions": _normalize_catalog_permissions(
+            value.get("permissions"),
+            module_id=module_id,
+        ),
    }
+    if item["availability"] == "withdrawn" and not item["availability_reason"]:
+        raise ValueError(
+            f"Withdrawn module package catalog entry {module_id!r} requires availability_reason."
+        )
+    release_notes_url = _optional_str(value, "release_notes_url")
+    if release_notes_url is not None:
+        item["release_notes_url"] = _catalog_https_url(
+            release_notes_url,
+            label=f"Module package catalog release_notes_url for {module_id!r}",
+        )
+    source = _normalize_catalog_source(value.get("source"), module_id=module_id)
+    if source:
+        item["source"] = source
    raw_architecture = value.get("architecture")
+    architecture_maturity: str | None = None
    if raw_architecture is not None:
        if not isinstance(raw_architecture, Mapping):
            raise ValueError(
@@ -647,6 +695,27 @@ def _normalize_catalog_item(value: Any) -> dict[str, object]:
                + "; ".join(issues)
            )
        item["architecture"] = architecture.to_dict()
+        architecture_maturity = architecture.maturity
+    raw_information_governance = value.get("information_governance")
+    if raw_information_governance is not None:
+        if not isinstance(raw_information_governance, Mapping):
+            raise ValueError(
+                "Module package catalog information_governance for "
+                f"{module_id!r} must be an object."
+            )
+        information_governance = information_governance_from_mapping(
+            raw_information_governance
+        )
+        governance_issues = information_governance_maturity_issues(
+            information_governance,
+            maturity=architecture_maturity,
+        )
+        if governance_issues:
+            raise ValueError(
+                "Module package catalog information_governance for "
+                f"{module_id!r} is invalid: " + "; ".join(governance_issues)
+            )
+        item["information_governance"] = information_governance.to_dict()
    raw_providers = value.get("external_providers")
    if raw_providers is not None:
        if not isinstance(raw_providers, list):
@@ -710,6 +779,170 @@ def _normalize_catalog_item(value: Any) -> dict[str, object]:
    return item


+def _catalog_availability(value: Mapping[str, object], *, module_id: str) -> str:
+    availability = str(value.get("availability") or "available").strip().lower()
+    if availability not in {"available", "withdrawn"}:
+        raise ValueError(
+            f"Unsupported catalog availability for {module_id!r}: {availability!r}."
+        )
+    return availability
+
+
+def _normalize_catalog_permissions(
+    value: object,
+    *,
+    module_id: str,
+) -> list[dict[str, object]]:
+    if value is None:
+        return []
+    if not isinstance(value, list):
+        raise ValueError(
+            f"Module package catalog permissions for {module_id!r} must be a list."
+        )
+    if len(value) > 1000:
+        raise ValueError(
+            f"Module package catalog permissions for {module_id!r} exceed 1000 entries."
+        )
+    normalized: list[dict[str, object]] = []
+    seen: set[str] = set()
+    for raw in value:
+        if not isinstance(raw, Mapping):
+            raise ValueError(
+                f"Module package catalog permission entries for {module_id!r} must be objects."
+            )
+        scope = _bounded_catalog_permission_text(
+            raw,
+            "scope",
+            module_id=module_id,
+            maximum=200,
+        )
+        if scope in seen:
+            raise ValueError(
+                f"Module package catalog entry {module_id!r} declares permission {scope!r} more than once."
+            )
+        seen.add(scope)
+        level = _bounded_catalog_permission_text(
+            raw,
+            "level",
+            module_id=module_id,
+            maximum=20,
+        )
+        if level not in {"system", "tenant"}:
+            raise ValueError(
+                f"Module package catalog permission {module_id!r}/{scope!r} has unsupported level {level!r}."
+            )
+        deprecated = raw.get("deprecated", False)
+        if not isinstance(deprecated, bool):
+            raise ValueError(
+                f"Module package catalog permission {module_id!r}/{scope!r} deprecated must be true or false."
+            )
+        normalized.append(
+            {
+                "scope": scope,
+                "label": _bounded_catalog_permission_text(
+                    raw,
+                    "label",
+                    module_id=module_id,
+                    maximum=200,
+                ),
+                "description": _bounded_catalog_permission_text(
+                    raw,
+                    "description",
+                    module_id=module_id,
+                    maximum=1000,
+                ),
+                "category": _bounded_catalog_permission_text(
+                    raw,
+                    "category",
+                    module_id=module_id,
+                    maximum=120,
+                ),
+                "level": level,
+                "resource": _bounded_catalog_permission_text(
+                    raw,
+                    "resource",
+                    module_id=module_id,
+                    maximum=120,
+                ),
+                "action": _bounded_catalog_permission_text(
+                    raw,
+                    "action",
+                    module_id=module_id,
+                    maximum=120,
+                ),
+                "deprecated": deprecated,
+            }
+        )
+    return normalized
+
+
+def _bounded_catalog_permission_text(
+    value: Mapping[str, object],
+    key: str,
+    *,
+    module_id: str,
+    maximum: int,
+) -> str:
+    text = _required_str(value, key)
+    if len(text) > maximum:
+        raise ValueError(
+            f"Module package catalog permission {key!r} for {module_id!r} exceeds {maximum} characters."
+        )
+    return text
+
+
+def _normalize_catalog_source(
+    value: object,
+    *,
+    module_id: str,
+) -> dict[str, object]:
+    if value is None:
+        return {}
+    if not isinstance(value, Mapping):
+        raise ValueError(
+            f"Module package catalog source for {module_id!r} must be an object."
+        )
+    repository = _required_str(value, "repository")
+    tag = _required_str(value, "tag")
+    commit = _required_str(value, "commit").lower()
+    if (
+        _SOURCE_REPOSITORY_RE.fullmatch(repository) is None
+        or repository.startswith("/")
+        or repository.endswith("/")
+        or ".." in repository.split("/")
+    ):
+        raise ValueError(
+            f"Module package catalog source repository for {module_id!r} is invalid."
+        )
+    if _SOURCE_REF_RE.fullmatch(tag) is None or ".." in tag.split("/"):
+        raise ValueError(
+            f"Module package catalog source tag for {module_id!r} is invalid."
+        )
+    if _SOURCE_COMMIT_RE.fullmatch(commit) is None:
+        raise ValueError(
+            f"Module package catalog source commit for {module_id!r} is invalid."
+        )
+    source: dict[str, object] = {
+        "repository": repository,
+        "tag": tag,
+        "commit": commit,
+    }
+    for field in ("repository_url", "revision_url"):
+        url = _optional_str(value, field)
+        if url is not None:
+            source[field] = _catalog_https_url(
+                url,
+                label=f"Module package catalog source {field} for {module_id!r}",
+            )
+    return source
+
+
+def _catalog_https_url(value: str, *, label: str) -> str:
+    if not is_http_url(value) or not value.startswith("https://"):
+        raise ValueError(f"{label} must use HTTPS.")
+    return value
+
+
 def _catalog_migration_safety(value: Any, *, module_id: str) -> str:
    if value is None:
        return "automatic"
@@ -780,14 +1013,14 @@ def _catalog_optional_positive_int(value: dict[str, Any], key: str, *, module_id
    return integer


-def _required_str(value: dict[str, Any], key: str) -> str:
+def _required_str(value: Mapping[str, Any], key: str) -> str:
    item = _optional_str(value, key)
    if not item:
        raise ValueError(f"Module package catalog entry is missing {key!r}.")
    return item


-def _optional_str(value: dict[str, Any], key: str) -> str | None:
+def _optional_str(value: Mapping[str, Any], key: str) -> str | None:
    item = value.get(key)
    if item is None:
        return None
@@ -943,20 +1176,40 @@ def _normalize_artifact_integrity(value: Any) -> dict[str, object]:
            continue
        if not isinstance(raw, dict):
            raise ValueError(f"Module package catalog artifact_integrity.{key} must be an object.")
-        clean = {
+        clean: dict[str, object] = {
            field: text
            for field in (
                "ref",
                "path",
                "artifact_path",
+                "url",
+                "filename",
                "sha256",
+                "integrity",
                "sbom_url",
                "provenance_url",
                "registry_identity",
                "git_ref",
+                "source_commit",
            )
            if (text := _optional_str(raw, field))
        }
+        url = clean.get("url")
+        if isinstance(url, str) and (not is_http_url(url) or not url.startswith("https://")):
+            raise ValueError(f"Module package catalog artifact_integrity.{key}.url must use HTTPS.")
+        filename = clean.get("filename")
+        if isinstance(filename, str) and _ARTIFACT_FILENAME_RE.fullmatch(filename) is None:
+            raise ValueError(f"Module package catalog artifact_integrity.{key}.filename is invalid.")
+        sha256 = clean.get("sha256")
+        if isinstance(sha256, str) and _SHA256_RE.fullmatch(sha256.lower()) is None:
+            raise ValueError(f"Module package catalog artifact_integrity.{key}.sha256 is invalid.")
+        if isinstance(sha256, str):
+            clean["sha256"] = sha256.lower()
+        size = raw.get("size")
+        if size is not None:
+            if not isinstance(size, int) or isinstance(size, bool) or size <= 0 or size > 512 * 1024 * 1024:
+                raise ValueError(f"Module package catalog artifact_integrity.{key}.size is invalid.")
+            clean["size"] = size
        if clean:
            normalized[key] = clean
    return normalized
@@ -4,6 +4,7 @@ from collections.abc import Callable, Iterable, Mapping, Sequence
 from dataclasses import dataclass, field
 from typing import Any, Literal, Protocol, TYPE_CHECKING

+from govoplan_core.core.information_governance import ModuleInformationGovernance
 from govoplan_core.core.ownership import OwnershipProviderRegistration
 from govoplan_core.core.provider_governance import (
    ExternalProviderDeclaration,
@@ -14,16 +15,21 @@ from govoplan_core.core.views import ViewSurface

 if TYPE_CHECKING:
    from fastapi import APIRouter
-    from govoplan_core.core.operations import OperationalCheckProviderRegistration
+    from govoplan_core.core.operations import (
+        OperationalCheckProviderRegistration,
+        RuntimeWorkStatusProviderRegistration,
+    )
    from govoplan_core.core.search import (
        SearchProviderRegistration,
        SearchSourceProviderRegistration,
    )
+    from govoplan_core.core.tasks import WorkItemProviderRegistration
    from govoplan_core.core.workflows import WorkflowDefinitionContribution


 SUPPORTED_MANIFEST_CONTRACT_VERSION = "1"
 SUPPORTED_FRONTEND_ASSET_MANIFEST_CONTRACT_VERSION = "1"
+SUPPORTED_PRESENTATION_CONTRACT_VERSION = "1"

 PermissionLevel = Literal["system", "tenant"]
 SubjectType = Literal["account", "membership", "group", "service_account", "tenant"]
@@ -33,7 +39,9 @@ MigrationTaskPhase = Literal[
    "post_migration_backfill",
    "post_migration_verify",
 ]
-MigrationTaskSafety = Literal["automatic", "requires_review", "forward_only", "destructive"]
+MigrationTaskSafety = Literal[
+    "automatic", "requires_review", "forward_only", "destructive"
+]
 MigrationTaskStatus = Literal["ok", "warning", "blocked", "skipped"]


@@ -74,8 +82,6 @@ class NavItem:
    surface_id: str | None = None


-
-
@dataclass(frozen=True, slots=True)
 class FrontendRoute:
    path: str
@@ -95,6 +101,43 @@ class PublicFrontendRoute:
    order: int = 100


+@dataclass(frozen=True, slots=True)
+class ProductAreaContribution:
+    """Assign module-owned surfaces to a user-facing product area."""
+
+    id: str
+    module_id: str
+    label: str
+    icon: str
+    surface_ids: tuple[str, ...]
+    description: str | None = None
+    order: int = 100
+
+
+@dataclass(frozen=True, slots=True)
+class QuickAccessTool:
+    """Declare a versioned, bounded module-owned Quick Access tool."""
+
+    id: str
+    module_id: str
+    category_id: str
+    label: str
+    surface_id: str
+    icon: str
+    description: str | None = None
+    full_page_path: str | None = None
+    required_all: tuple[str, ...] = ()
+    required_any: tuple[str, ...] = ()
+    order: int = 100
+    default_enabled: bool = True
+    modes: tuple[str, ...] = ("browse",)
+    contract_version: str = "1"
+    availability: Literal["global", "active_object"] = "global"
+    accepted_reference_kinds: tuple[str, ...] = ()
+    returned_reference_kinds: tuple[str, ...] = ()
+    help_context_id: str | None = None
+
+
@dataclass(frozen=True, slots=True)
 class FrontendModule:
    module_id: str
@@ -109,6 +152,8 @@ class FrontendModule:
    nav_items: tuple[NavItem, ...] = ()
    settings_routes: tuple[FrontendRoute, ...] = ()
    view_surfaces: tuple[ViewSurface, ...] = ()
+    product_areas: tuple[ProductAreaContribution, ...] = ()
+    quick_access_tools: tuple[QuickAccessTool, ...] = ()


@dataclass(frozen=True, slots=True)
@@ -146,7 +191,9 @@ class ModuleMigrationTaskResult:
    details: Mapping[str, Any] = field(default_factory=dict)


-ModuleMigrationTaskExecutor = Callable[[ModuleMigrationTaskContext], ModuleMigrationTaskResult | None]
+ModuleMigrationTaskExecutor = Callable[
+    [ModuleMigrationTaskContext], ModuleMigrationTaskResult | None
+]


@dataclass(frozen=True, slots=True)
@@ -203,7 +250,9 @@ class ModuleUninstallGuardResult:
    message: str


-UninstallGuardProvider = Callable[[object | None, str], Iterable[ModuleUninstallGuardResult]]
+UninstallGuardProvider = Callable[
+    [object | None, str], Iterable[ModuleUninstallGuardResult]
+]


@dataclass(frozen=True, slots=True)
@@ -223,7 +272,9 @@ class ModuleContext:
 DocumentationLayer = Literal["always", "configured", "available", "evidence"]
 DocumentationLinkKind = Literal["runtime", "api", "repository", "wiki", "public"]
 DocumentationType = Literal["admin", "user"]
-DocumentationConfigurationState = Literal["enabled", "disabled", "inherited", "unavailable"]
+DocumentationConfigurationState = Literal[
+    "enabled", "disabled", "inherited", "unavailable"
+]
 DocumentationSourceKind = Literal[
    "manifest",
    "route",
@@ -288,16 +339,23 @@ def user_workflow_scope_condition_issues(topic: DocumentationTopic) -> tuple[str
    """

    raw_kind = topic.metadata.get("kind")
-    kind = raw_kind.strip().lower().replace("_", "-") if isinstance(raw_kind, str) else ""
+    kind = (
+        raw_kind.strip().lower().replace("_", "-") if isinstance(raw_kind, str) else ""
+    )
    if kind != "workflow" or "user" not in topic.documentation_types:
        return ()
    if not topic.conditions:
-        return ("user workflow topics must declare at least one scope-conditioned alternative",)
+        return (
+            "user workflow topics must declare at least one scope-conditioned alternative",
+        )

    unscoped_alternatives = tuple(
        index
        for index, condition in enumerate(topic.conditions, start=1)
-        if not any(scope.strip() for scope in (*condition.required_scopes, *condition.any_scopes))
+        if not any(
+            scope.strip()
+            for scope in (*condition.required_scopes, *condition.any_scopes)
+        )
    )
    if not unscoped_alternatives:
        return ()
@@ -369,14 +427,11 @@ class CapabilityDocumentation:
 class ResourceAclProvider(Protocol):
    resource_type: str

-    def can_read(self, principal: object, resource_id: str) -> bool:
-        ...
+    def can_read(self, principal: object, resource_id: str) -> bool: ...

-    def can_write(self, principal: object, resource_id: str) -> bool:
-        ...
+    def can_write(self, principal: object, resource_id: str) -> bool: ...

-    def explain(self, principal: object, resource_id: str) -> AccessDecision:
-        ...
+    def explain(self, principal: object, resource_id: str) -> AccessDecision: ...


 TenantSummaryProvider = Callable[[object, str], Mapping[str, int]]
@@ -435,17 +490,29 @@ class ModuleManifest:
    ownership_providers: tuple[OwnershipProviderRegistration, ...] = ()
    tenant_summary_providers: tuple[TenantSummaryProvider, ...] = ()
    tenant_summary_batch_providers: tuple[TenantSummaryBatchProvider, ...] = ()
-    delete_veto_providers: Mapping[str, Sequence[DeleteVetoProvider]] = field(default_factory=dict)
+    delete_veto_providers: Mapping[str, Sequence[DeleteVetoProvider]] = field(
+        default_factory=dict
+    )
    uninstall_guard_providers: tuple[UninstallGuardProvider, ...] = ()
    capability_factories: Mapping[str, CapabilityFactory] = field(default_factory=dict)
-    capability_documentation: Mapping[str, CapabilityDocumentation] = field(default_factory=dict)
+    capability_documentation: Mapping[str, CapabilityDocumentation] = field(
+        default_factory=dict
+    )
    search_providers: tuple["SearchProviderRegistration", ...] = ()
    search_sources: tuple["SearchSourceProviderRegistration", ...] = ()
+    work_item_providers: tuple["WorkItemProviderRegistration", ...] = ()
    operational_check_providers: tuple[
        "OperationalCheckProviderRegistration",
        ...,
    ] = ()
+    runtime_work_status_providers: tuple[
+        "RuntimeWorkStatusProviderRegistration",
+        ...,
+    ] = ()
    architecture: ModuleArchitectureDeclaration | None = None
+    information_governance: ModuleInformationGovernance = field(
+        default_factory=ModuleInformationGovernance
+    )
    external_providers: tuple[ExternalProviderDeclaration, ...] = ()
    external_provider_state_providers: tuple[
        ExternalProviderStateProviderRegistration,
@@ -0,0 +1,175 @@
+from __future__ import annotations
+
+from dataclasses import dataclass
+from typing import Any, Iterable, Mapping
+
+NAVIGATION_PREFERENCES_KEY = "navigation_preferences"
+NAVIGATION_PREFERENCES_CONTRACT_VERSION = "1"
+_MAX_ITEMS = 256
+
+
+@dataclass(frozen=True, slots=True)
+class NavigationPreferences:
+    order: tuple[str, ...] = ()
+    hidden: tuple[str, ...] = ()
+    locked: tuple[str, ...] = ()
+
+    def as_dict(self) -> dict[str, object]:
+        return {
+            "contract_version": NAVIGATION_PREFERENCES_CONTRACT_VERSION,
+            "order": list(self.order),
+            "hidden": list(self.hidden),
+            "locked": list(self.locked),
+        }
+
+
+@dataclass(frozen=True, slots=True)
+class EffectiveNavigationItem:
+    id: str
+    order: int
+    visible: bool
+    locked: bool
+    order_source: str
+    visibility_source: str
+    lock_source: str | None = None
+
+    def as_dict(self) -> dict[str, object]:
+        return {
+            "navigation_id": self.id,
+            "order": self.order,
+            "navigation_visible": self.visible,
+            "navigation_locked": self.locked,
+            "navigation_order_source": self.order_source,
+            "navigation_visibility_source": self.visibility_source,
+            "navigation_lock_source": self.lock_source,
+        }
+
+
+def navigation_preferences_from_settings(
+    settings: object,
+) -> NavigationPreferences | None:
+    if not isinstance(settings, Mapping):
+        return None
+    raw = settings.get(NAVIGATION_PREFERENCES_KEY)
+    if not isinstance(raw, Mapping):
+        return None
+    return navigation_preferences_from_mapping(raw)
+
+
+def navigation_preferences_from_mapping(
+    raw: Mapping[str, Any],
+) -> NavigationPreferences:
+    return NavigationPreferences(
+        order=_ids(raw.get("order")),
+        hidden=_ids(raw.get("hidden")),
+        locked=_ids(raw.get("locked")),
+    )
+
+
+def update_navigation_preferences(
+    settings: object,
+    preferences: NavigationPreferences | Mapping[str, Any] | None,
+) -> dict[str, Any]:
+    updated = dict(settings) if isinstance(settings, Mapping) else {}
+    if preferences is None:
+        updated.pop(NAVIGATION_PREFERENCES_KEY, None)
+    else:
+        raw = preferences.as_dict() if isinstance(preferences, NavigationPreferences) else preferences
+        updated[NAVIGATION_PREFERENCES_KEY] = navigation_preferences_from_mapping(
+            raw
+        ).as_dict()
+    return updated
+
+
+def resolve_navigation_preferences(
+    item_ids: Iterable[str],
+    *,
+    system: NavigationPreferences | None = None,
+    tenant: NavigationPreferences | None = None,
+    user: NavigationPreferences | None = None,
+) -> dict[str, EffectiveNavigationItem]:
+    ordered = list(dict.fromkeys(_clean_id(item_id) for item_id in item_ids))
+    ordered = [item_id for item_id in ordered if item_id]
+    available = set(ordered)
+    order_source = {item_id: "module" for item_id in ordered}
+    visibility = {item_id: True for item_id in ordered}
+    visibility_source = {item_id: "module" for item_id in ordered}
+    locks: dict[str, str] = {}
+
+    for source, preferences, may_lock in (
+        ("system", system, True),
+        ("tenant", tenant, True),
+        ("user", user, False),
+    ):
+        if preferences is None:
+            continue
+        requested_order = [item_id for item_id in preferences.order if item_id in available]
+        if requested_order:
+            requested = set(requested_order)
+            ordered = [*requested_order, *(item_id for item_id in ordered if item_id not in requested)]
+            for item_id in requested_order:
+                order_source[item_id] = source
+
+        requested_hidden = set(preferences.hidden).intersection(available)
+        for item_id in available:
+            if item_id in locks:
+                visibility[item_id] = True
+                visibility_source[item_id] = locks[item_id]
+                continue
+            visibility[item_id] = item_id not in requested_hidden
+            visibility_source[item_id] = source
+
+        if may_lock:
+            for item_id in preferences.locked:
+                if item_id not in available:
+                    continue
+                locks[item_id] = source
+                visibility[item_id] = True
+                visibility_source[item_id] = source
+
+    return {
+        item_id: EffectiveNavigationItem(
+            id=item_id,
+            order=index,
+            visible=visibility[item_id],
+            locked=item_id in locks,
+            order_source=order_source[item_id],
+            visibility_source=visibility_source[item_id],
+            lock_source=locks.get(item_id),
+        )
+        for index, item_id in enumerate(ordered)
+    }
+
+
+def _ids(value: object) -> tuple[str, ...]:
+    if not isinstance(value, (list, tuple)):
+        return ()
+    cleaned = tuple(
+        dict.fromkeys(
+            item_id
+            for item in value[:_MAX_ITEMS]
+            if (item_id := _clean_id(item))
+        )
+    )
+    return cleaned
+
+
+def _clean_id(value: object) -> str:
+    if not isinstance(value, str):
+        return ""
+    clean = value.strip()
+    if not clean or len(clean) > 255 or any(ord(character) < 32 for character in clean):
+        return ""
+    return clean
+
+
+__all__ = [
+    "EffectiveNavigationItem",
+    "NAVIGATION_PREFERENCES_CONTRACT_VERSION",
+    "NAVIGATION_PREFERENCES_KEY",
+    "NavigationPreferences",
+    "navigation_preferences_from_mapping",
+    "navigation_preferences_from_settings",
+    "resolve_navigation_preferences",
+    "update_navigation_preferences",
+]
@@ -1,7 +1,8 @@
 from __future__ import annotations

-from collections.abc import Callable, Mapping
+from collections.abc import Callable, Mapping, Sequence
 from dataclasses import dataclass, field
+from datetime import datetime
 from typing import Literal


@@ -42,3 +43,84 @@ class OperationalCheckProviderRegistration:
    provider: OperationalCheckProvider
    cache_seconds: int = 60

+
+RuntimeWorkState = Literal[
+    "disabled",
+    "unconfigured",
+    "starting",
+    "healthy",
+    "idle",
+    "busy",
+    "degraded",
+    "stale",
+    "unreachable",
+]
+
+
+@dataclass(frozen=True, slots=True)
+class RuntimeWorkStatusContext:
+    """Sanitized process evidence supplied to a runtime-work provider."""
+
+    profile: str
+    observed_at: datetime
+    stale_after_seconds: int
+    runtime_nodes: Sequence[Mapping[str, object]] = ()
+
+
+@dataclass(frozen=True, slots=True)
+class RuntimeWorkStatus:
+    """Bounded worker/queue status with explicit unsupported metrics."""
+
+    provider_id: str
+    label: str
+    backend: str
+    enabled: bool
+    configured: bool
+    state: RuntimeWorkState
+    detail: str
+    observed_at: datetime
+    active_workers: int | None = None
+    last_heartbeat_at: datetime | None = None
+    queue_depths: Mapping[str, int | None] = field(default_factory=dict)
+    active_work: int | None = None
+    reserved_work: int | None = None
+    failures: int | None = None
+    stale_after_seconds: int | None = None
+    guidance: str = ""
+
+    def as_dict(self) -> dict[str, object]:
+        return {
+            "provider_id": self.provider_id,
+            "label": self.label,
+            "backend": self.backend,
+            "enabled": self.enabled,
+            "configured": self.configured,
+            "state": self.state,
+            "detail": self.detail,
+            "observed_at": self.observed_at.isoformat(),
+            "active_workers": self.active_workers,
+            "last_heartbeat_at": (
+                self.last_heartbeat_at.isoformat()
+                if self.last_heartbeat_at is not None
+                else None
+            ),
+            "queue_depths": dict(self.queue_depths),
+            "active_work": self.active_work,
+            "reserved_work": self.reserved_work,
+            "failures": self.failures,
+            "stale_after_seconds": self.stale_after_seconds,
+            "guidance": self.guidance,
+        }
+
+
+RuntimeWorkStatusProvider = Callable[[RuntimeWorkStatusContext], RuntimeWorkStatus]
+
+
+@dataclass(frozen=True, slots=True)
+class RuntimeWorkStatusProviderRegistration:
+    """Register one optional provider-neutral worker/queue observation."""
+
+    module_id: str
+    provider_id: str
+    provider: RuntimeWorkStatusProvider
+    cache_seconds: int = 15
@@ -0,0 +1,87 @@
+from __future__ import annotations
+
+from collections.abc import Mapping
+from dataclasses import dataclass, field
+from datetime import datetime
+from typing import Protocol, runtime_checkable
+
+from govoplan_core.core.institutional import EvidenceReference
+
+
+CAPABILITY_PAYMENT_REQUESTS = "payments.requests"
+
+
+@dataclass(frozen=True, slots=True)
+class PaymentRequestCommand:
+    tenant_id: str
+    source_module: str
+    source_resource_type: str
+    source_resource_id: str
+    amount_minor: int
+    currency: str
+    subject: str
+    idempotency_key: str
+    requested_at: datetime
+    requested_by_ref: str
+    due_at: datetime | None = None
+    context_refs: Mapping[str, str] = field(default_factory=dict)
+    metadata: Mapping[str, object] = field(default_factory=dict)
+
+
+@dataclass(frozen=True, slots=True)
+class ManualPaymentReconciliationCommand:
+    tenant_id: str
+    payment_id: str
+    amount_minor: int
+    currency: str
+    transaction_reference: str
+    evidence_ref: EvidenceReference
+    idempotency_key: str
+    received_at: datetime
+    recorded_at: datetime
+    recorded_by_ref: str
+    metadata: Mapping[str, object] = field(default_factory=dict)
+
+
+@runtime_checkable
+class PaymentRequestProvider(Protocol):
+    def request_payment(
+        self,
+        session: object,
+        command: PaymentRequestCommand,
+    ) -> Mapping[str, object]:
+        ...
+
+    def get_payment(
+        self,
+        session: object,
+        *,
+        tenant_id: str,
+        payment_id: str,
+    ) -> Mapping[str, object] | None:
+        ...
+
+    def reconcile_manual_payment(
+        self,
+        session: object,
+        command: ManualPaymentReconciliationCommand,
+    ) -> Mapping[str, object]:
+        ...
+
+
+def payment_request_provider(registry: object | None) -> PaymentRequestProvider | None:
+    if registry is None or not hasattr(registry, "has_capability"):
+        return None
+    if not registry.has_capability(CAPABILITY_PAYMENT_REQUESTS):
+        return None
+    capability = registry.capability(CAPABILITY_PAYMENT_REQUESTS)
+    return capability if isinstance(capability, PaymentRequestProvider) else None
+
+
+__all__ = [
+    "CAPABILITY_PAYMENT_REQUESTS",
+    "ManualPaymentReconciliationCommand",
+    "PaymentRequestCommand",
+    "PaymentRequestProvider",
+    "payment_request_provider",
+]
@@ -21,11 +21,13 @@ PlatformInterfaceKind = Literal[
    "frontend_route",
    "navigation",
    "permission",
+    "product_area",
    "provided_interface",
    "public_route",
    "search_provider",
    "search_source",
    "settings_route",
+    "quick_access_tool",
    "view_surface",
 ]

@@ -217,6 +219,45 @@ def manifest_interface_declarations(
                    },
                )
            )
+        for area in frontend.product_areas:
+            declarations.append(
+                PlatformInterfaceDeclaration(
+                    id=f"{manifest.id}.{area.id}",
+                    module_id=manifest.id,
+                    kind="product_area",
+                    label=area.label,
+                    required_all=(),
+                    required_any=(),
+                    metadata={
+                        "area_id": area.id,
+                        "icon": area.icon,
+                        "description": area.description,
+                        "order": area.order,
+                        "surface_ids": list(area.surface_ids),
+                    },
+                )
+            )
+        for tool in frontend.quick_access_tools:
+            declarations.append(
+                PlatformInterfaceDeclaration(
+                    id=tool.id,
+                    module_id=manifest.id,
+                    kind="quick_access_tool",
+                    label=tool.label,
+                    path=tool.full_page_path,
+                    required_all=tool.required_all,
+                    required_any=tool.required_any,
+                    metadata={
+                        "category_id": tool.category_id,
+                        "surface_id": tool.surface_id,
+                        "icon": tool.icon,
+                        "description": tool.description,
+                        "order": tool.order,
+                        "default_enabled": tool.default_enabled,
+                        "modes": list(tool.modes),
+                    },
+                )
+            )

    frontend_navigation = {
        declaration.id: declaration
@@ -7,6 +7,20 @@ from urllib.parse import quote, unquote
 from govoplan_core.core.access import PrincipalRef

 PolicyScopeType = Literal["system", "tenant", "user", "group", "campaign"]
+PolicyImpactPopulationState = Literal[
+    "complete",
+    "sampled",
+    "truncated",
+    "unavailable",
+]
+CampaignArchiveEncryptionMethod = Literal["aes", "zip_standard"]
+CampaignArchivePasswordDeliveryChannel = Literal[
+    "separate_mail",
+    "sms",
+    "letter",
+    "phone",
+    "in_person",
+]
 SchedulingParticipantVisibility = Literal["aggregates_only", "names_and_statuses"]
 DefinitionScopeType = Literal["system", "tenant", "group", "user"]
 DefinitionKind = Literal["flow", "template"]
@@ -45,6 +59,8 @@ CAPABILITY_POLICY_SCHEDULING_PARTICIPANT_PRIVACY = "policy.schedulingParticipant
 CAPABILITY_POLICY_DEFINITION_GOVERNANCE = "policy.definitionGovernance"
 CAPABILITY_POLICY_VIEW_GOVERNANCE = "policy.viewGovernance"
 CAPABILITY_POLICY_FUNCTION_ASSIGNMENT_GOVERNANCE = "policy.functionAssignmentGovernance"
+CAPABILITY_POLICY_CAMPAIGN_ARCHIVE_ENCRYPTION = "policy.campaignArchiveEncryption"
+CAPABILITY_POLICY_IMPACT_SUBJECT_PREFIX = "policy.impactSubjects."

 POLICY_SCOPE_TYPES: tuple[PolicyScopeType, ...] = (
    "system",
@@ -182,6 +198,213 @@ class PolicyDecision:
        }


+@dataclass(frozen=True, slots=True)
+class PolicyImpactPopulationRequest:
+    """One explicit, bounded request to an optional impact-subject provider."""
+
+    tenant_id: str
+    policy_family: str
+    selector: Mapping[str, Any] = field(default_factory=dict)
+    limit: int = 200
+    actor_scopes: tuple[str, ...] = ()
+    allow_sensitive_details: bool = False
+
+    def __post_init__(self) -> None:
+        if not self.tenant_id.strip():
+            raise ValueError("Policy impact population requires a tenant ID")
+        if not self.policy_family.strip() or len(self.policy_family) > 120:
+            raise ValueError(
+                "Policy impact population family must contain 1 to 120 characters"
+            )
+        if self.limit < 1 or self.limit > 500:
+            raise ValueError("Policy impact population limit must be between 1 and 500")
+
+
+@dataclass(frozen=True, slots=True)
+class PolicyImpactSubject:
+    """Provider-owned reference safe for Policy to compare without domain imports."""
+
+    module_id: str
+    resource_type: str
+    resource_id: str
+    action: str
+    label: str | None = None
+    scope_type: PolicyScopeType | None = None
+    scope_id: str | None = None
+    attributes: Mapping[str, Any] = field(default_factory=dict)
+
+    def __post_init__(self) -> None:
+        for label, value, maximum in (
+            ("module ID", self.module_id, 80),
+            ("resource type", self.resource_type, 80),
+            ("resource ID", self.resource_id, 240),
+            ("action", self.action, 120),
+        ):
+            if not value.strip() or len(value) > maximum:
+                raise ValueError(
+                    f"Policy impact subject {label} must contain 1 to {maximum} characters"
+                )
+
+    @property
+    def key(self) -> tuple[str, str, str, str]:
+        return (
+            self.module_id,
+            self.resource_type,
+            self.resource_id,
+            self.action,
+        )
+
+    def to_dict(self) -> dict[str, Any]:
+        return {
+            "module_id": self.module_id,
+            "resource_type": self.resource_type,
+            "resource_id": self.resource_id,
+            "action": self.action,
+            "label": self.label,
+            "scope_type": self.scope_type,
+            "scope_id": self.scope_id,
+            "attributes": dict(self.attributes),
+        }
+
+
+@dataclass(frozen=True, slots=True)
+class PolicyImpactSubjectBatch:
+    provider_id: str
+    subjects: tuple[PolicyImpactSubject, ...] = ()
+    state: PolicyImpactPopulationState = "complete"
+    total_available: int | None = None
+    explanation: str | None = None
+
+    def __post_init__(self) -> None:
+        if not self.provider_id.strip() or len(self.provider_id) > 120:
+            raise ValueError(
+                "Policy impact provider ID must contain 1 to 120 characters"
+            )
+        if len(self.subjects) > 500:
+            raise ValueError("Policy impact providers may return at most 500 subjects")
+        if len({subject.key for subject in self.subjects}) != len(self.subjects):
+            raise ValueError("Policy impact provider returned duplicate subjects")
+        if self.total_available is not None and self.total_available < len(self.subjects):
+            raise ValueError(
+                "Policy impact population total cannot be smaller than its subjects"
+            )
+        if self.state == "unavailable" and not self.explanation:
+            raise ValueError("Unavailable policy impact populations need an explanation")
+
+    def to_dict(self, *, include_subjects: bool = True) -> dict[str, Any]:
+        return {
+            "provider_id": self.provider_id,
+            "state": self.state,
+            "returned": len(self.subjects),
+            "total_available": self.total_available,
+            "explanation": self.explanation,
+            "subjects": (
+                [subject.to_dict() for subject in self.subjects]
+                if include_subjects
+                else []
+            ),
+        }
+
+
+@runtime_checkable
+class PolicyImpactSubjectProvider(Protocol):
+    provider_id: str
+    supported_policy_families: tuple[str, ...]
+
+    def collect_policy_impact_subjects(
+        self,
+        session: object | None = None,
+        *,
+        request: PolicyImpactPopulationRequest,
+    ) -> PolicyImpactSubjectBatch: ...
+
+
+def policy_impact_subject_provider(
+    registry: object | None,
+    provider_id: str,
+) -> PolicyImpactSubjectProvider | None:
+    clean_provider_id = provider_id.strip()
+    if not clean_provider_id or registry is None:
+        return None
+    capability_name = f"{CAPABILITY_POLICY_IMPACT_SUBJECT_PREFIX}{clean_provider_id}"
+    if (
+        not hasattr(registry, "has_capability")
+        or not registry.has_capability(capability_name)
+    ):
+        return None
+    capability = registry.capability(capability_name)
+    if not isinstance(capability, PolicyImpactSubjectProvider):
+        return None
+    return capability
+
+
+@dataclass(frozen=True, slots=True)
+class CampaignArchiveEncryptionRequest:
+    """Context required to resolve one Campaign archive-encryption ceiling.
+
+    The owning module supplies the stable Campaign and owner references. Policy
+    owns hierarchy evaluation; Campaign owns archive configuration and evidence.
+    """
+
+    tenant_id: str
+    campaign_id: str
+    owner_type: Literal["user", "group"] | None = None
+    owner_id: str | None = None
+
+
+@dataclass(frozen=True, slots=True)
+class CampaignArchiveEncryptionDecision:
+    allowed_password_encryption_methods: frozenset[CampaignArchiveEncryptionMethod]
+    allowed_password_delivery_channels: frozenset[
+        CampaignArchivePasswordDeliveryChannel
+    ]
+    policy_hash: str
+    source_path: tuple[PolicySourceStep, ...] = ()
+    reason: str | None = None
+    diagnostics: tuple[Mapping[str, Any], ...] = ()
+
+    def to_dict(self) -> dict[str, Any]:
+        return {
+            "allowed_password_encryption_methods": sorted(
+                self.allowed_password_encryption_methods
+            ),
+            "allowed_password_delivery_channels": sorted(
+                self.allowed_password_delivery_channels
+            ),
+            "policy_hash": self.policy_hash,
+            "source_path": [step.to_dict() for step in self.source_path],
+            "reason": self.reason,
+            "diagnostics": [dict(item) for item in self.diagnostics],
+        }
+
+
+@runtime_checkable
+class CampaignArchiveEncryptionPolicy(Protocol):
+    def resolve_campaign_archive_encryption(
+        self,
+        session: object | None = None,
+        *,
+        request: CampaignArchiveEncryptionRequest,
+    ) -> CampaignArchiveEncryptionDecision: ...
+
+
+def campaign_archive_encryption_policy(
+    registry: object | None,
+) -> CampaignArchiveEncryptionPolicy | None:
+    if (
+        registry is None
+        or not hasattr(registry, "has_capability")
+        or not registry.has_capability(CAPABILITY_POLICY_CAMPAIGN_ARCHIVE_ENCRYPTION)
+    ):
+        return None
+    capability = registry.capability(CAPABILITY_POLICY_CAMPAIGN_ARCHIVE_ENCRYPTION)
+    return (
+        capability
+        if isinstance(capability, CampaignArchiveEncryptionPolicy)
+        else None
+    )
+
+
@dataclass(frozen=True, slots=True)
 class FunctionAssignmentGovernanceRequest:
    tenant_id: str
@@ -15,6 +15,7 @@ CAPABILITY_POSTBOX_MESSAGES = "postbox.messages"
 CAPABILITY_POSTBOX_DELIVERY = "postbox.delivery"
 CAPABILITY_POSTBOX_EVIDENCE = "postbox.evidence"
 CAPABILITY_POSTBOX_ROUTING = "postbox.routing"
+CAPABILITY_POSTBOX_PORTAL = "postbox.portal_projection"

 PostboxAction = Literal[
    "discover",
@@ -171,6 +172,11 @@ class PostboxDirectoryEntryRef:
    template_revision_id: str | None = None
    holder_count: int = 0
    vacant: bool = True
+    encryption_profile: str = "plaintext_v1"
+    key_epoch: int = 1
+    encryption_vault_id: str | None = None
+    protection_policy: Mapping[str, object] = field(default_factory=dict)
+    grouping_policy: Mapping[str, object] = field(default_factory=dict)
    access: PostboxAccessDecisionRef | None = None
    resource_revision: int = 1
    etag: str | None = None
@@ -259,6 +265,9 @@ class PostboxMessageAuthoringRequest:
    idempotency_key: str
    subject: str
    body_text: str | None = None
+    ciphertext_ref: str | None = None
+    signed_manifest_ref: str | None = None
+    wrapped_keys: tuple[PostboxWrappedKeyRef, ...] = ()
    classification: str = "internal"
    participants: tuple[PostboxParticipantRef, ...] = ()
    attachments: tuple[PostboxAttachmentRef, ...] = ()
@@ -300,6 +309,7 @@ class PostboxDeliveryRequest:
    body_text: str | None = None
    sender_label: str | None = None
    classification: str = "internal"
+    action_required: bool = False
    participants: tuple[PostboxParticipantRef, ...] = ()
    attachments: tuple[PostboxAttachmentRef, ...] = ()
    expires_at: datetime | None = None
@@ -323,6 +333,14 @@ class PostboxDeliveryResult:
    evidence: Mapping[str, object] = field(default_factory=dict)


+@dataclass(frozen=True, slots=True)
+class PostboxPortalEntryRef:
+    postbox: PostboxDirectoryEntryRef
+    unread_count: int = 0
+    latest_message_at: datetime | None = None
+    route_path: str = "/postbox"
+
+
 class PostboxDeliveryRejected(RuntimeError):
    """A delivery was rejected before the provider accepted any effect."""

@@ -494,6 +512,31 @@ class PostboxRoutingProvider(Protocol):
    ) -> Mapping[str, object]:
        ...

+    def reconcile_notification_lifecycle(
+        self,
+        session: object,
+        *,
+        tenant_id: str | None = None,
+        limit: int = 50,
+    ) -> Mapping[str, object]:
+        """Reconcile assignment-derived Postbox notification facts."""
+
+        ...
+
+
+@runtime_checkable
+class PostboxPortalProjectionProvider(Protocol):
+    """Project portal-enabled Postboxes without transferring access ownership."""
+
+    def list_portal_entries(
+        self,
+        session: object,
+        principal: object,
+        *,
+        tenant_id: str,
+        limit: int = 100,
+    ) -> Sequence[PostboxPortalEntryRef]: ...
+

 def _postbox_provider(
    registry: object | None,
@@ -573,3 +616,18 @@ def postbox_routing_provider(
        provider_type=PostboxRoutingProvider,
    )
    return provider if isinstance(provider, PostboxRoutingProvider) else None
+
+
+def postbox_portal_projection_provider(
+    registry: object | None,
+) -> PostboxPortalProjectionProvider | None:
+    provider = _postbox_provider(
+        registry,
+        capability_name=CAPABILITY_POSTBOX_PORTAL,
+        provider_type=PostboxPortalProjectionProvider,
+    )
+    return (
+        provider
+        if isinstance(provider, PostboxPortalProjectionProvider)
+        else None
+    )
@@ -0,0 +1,369 @@
+from __future__ import annotations
+
+from collections.abc import Mapping, Sequence
+from dataclasses import dataclass, field
+from datetime import datetime
+from typing import Literal, Protocol, runtime_checkable
+
+
+CAPABILITY_RECORDS_FILING = "records.filing"
+CAPABILITY_RECORD_SOURCE_PREFIX = "records.source."
+CAPABILITY_RECORD_ARCHIVE_PREFIX = "records.archive."
+
+RecordSourceAuthority = Literal[
+    "native_authoritative",
+    "external_authoritative",
+    "external_mirror",
+    "governed_sync",
+    "governance_overlay",
+    "linked_reference",
+]
+RecordArchiveOutcome = Literal["accepted", "rejected", "outcome_unknown"]
+
+_RECORD_SOURCE_AUTHORITIES = {
+    "native_authoritative",
+    "external_authoritative",
+    "external_mirror",
+    "governed_sync",
+    "governance_overlay",
+    "linked_reference",
+}
+_RECORD_ARCHIVE_OUTCOMES = {"accepted", "rejected", "outcome_unknown"}
+
+
+class RecordContractError(ValueError):
+    """Stable error for provider-neutral record filing operations."""
+
+
+@dataclass(frozen=True, slots=True)
+class RecordSourceLocator:
+    """Exact source revision requested for filing into a record."""
+
+    tenant_id: str
+    source_module: str
+    resource_type: str
+    resource_id: str
+    source_revision: str
+    metadata: Mapping[str, object] = field(default_factory=dict)
+
+    def __post_init__(self) -> None:
+        _require_text_fields(
+            self,
+            "tenant_id",
+            "source_module",
+            "resource_type",
+            "resource_id",
+            "source_revision",
+        )
+        if len(self.resource_id) > 500 or len(self.source_revision) > 255:
+            raise RecordContractError("Record source identity is too long.")
+
+
+@dataclass(frozen=True, slots=True)
+class RecordSourceReference:
+    """Provider-resolved immutable source metadata safe to preserve in Records."""
+
+    locator: RecordSourceLocator
+    label: str
+    authority_mode: RecordSourceAuthority = "linked_reference"
+    content_sha256: str | None = None
+    content_type: str | None = None
+    size_bytes: int | None = None
+    valid_from: datetime | None = None
+    valid_to: datetime | None = None
+    recorded_at: datetime | None = None
+    launch_url: str | None = None
+    metadata: Mapping[str, object] = field(default_factory=dict)
+
+    def __post_init__(self) -> None:
+        if not self.label.strip():
+            raise RecordContractError("Record source references require a label.")
+        if len(self.label) > 500:
+            raise RecordContractError(
+                "Record source labels are limited to 500 characters."
+            )
+        if self.size_bytes is not None and self.size_bytes < 0:
+            raise RecordContractError("Record source sizes cannot be negative.")
+        if self.content_sha256 is not None:
+            digest = self.content_sha256.removeprefix("sha256:")
+            if len(digest) != 64 or any(
+                character not in "0123456789abcdefABCDEF" for character in digest
+            ):
+                raise RecordContractError(
+                    "Record source SHA-256 digests must be hexadecimal."
+                )
+        if self.valid_from and self.valid_to and self.valid_to <= self.valid_from:
+            raise RecordContractError(
+                "Record source valid_to must be after valid_from."
+            )
+
+
+@dataclass(frozen=True, slots=True)
+class RecordFilingRequest:
+    tenant_id: str
+    record_id: str
+    source: RecordSourceLocator
+    purpose: str
+    filing_reason: str
+    idempotency_key: str
+    volume_id: str | None = None
+    relationship: str = "contains"
+    institutional_context: Mapping[str, object] = field(default_factory=dict)
+    metadata: Mapping[str, object] = field(default_factory=dict)
+
+    def __post_init__(self) -> None:
+        _require_text_fields(
+            self,
+            "tenant_id",
+            "record_id",
+            "purpose",
+            "filing_reason",
+            "idempotency_key",
+            "relationship",
+        )
+        if self.source.tenant_id != self.tenant_id:
+            raise RecordContractError("Record filing cannot cross tenants.")
+        if len(self.purpose) > 255 or len(self.filing_reason) > 2_000:
+            raise RecordContractError("Record filing purpose or reason is too long.")
+        if len(self.idempotency_key) > 255:
+            raise RecordContractError(
+                "Record filing idempotency keys are limited to 255 characters."
+            )
+
+
+@dataclass(frozen=True, slots=True)
+class RecordFilingResult:
+    record_id: str
+    item_id: str
+    sequence: int
+    source: RecordSourceReference
+    filed_at: datetime
+    replayed: bool = False
+
+
+@dataclass(frozen=True, slots=True)
+class RecordTransferPackage:
+    """Exact, digest-bound package prepared by Records for one provider profile."""
+
+    tenant_id: str
+    package_id: str
+    record_id: str
+    record_revision: int
+    profile: str
+    manifest_sha256: str
+    manifest: Mapping[str, object]
+
+    def __post_init__(self) -> None:
+        _require_text_fields(
+            self,
+            "tenant_id",
+            "package_id",
+            "record_id",
+            "profile",
+            "manifest_sha256",
+        )
+        if self.record_revision < 1:
+            raise RecordContractError("Record transfer revisions must be positive.")
+        _require_sha256(self.manifest_sha256, "Record transfer manifest")
+
+
+@dataclass(frozen=True, slots=True)
+class RecordArchiveProviderState:
+    provider_id: str
+    label: str
+    profiles: tuple[str, ...]
+    authority_modes: tuple[RecordSourceAuthority, ...]
+    healthy: bool
+    checked_at: datetime
+    last_success_at: datetime | None = None
+    freshness_seconds: int | None = None
+    limitations: tuple[str, ...] = ()
+    simulated: bool = False
+
+    def __post_init__(self) -> None:
+        _require_text_fields(self, "provider_id", "label")
+        if not self.profiles or any(not item.strip() for item in self.profiles):
+            raise RecordContractError(
+                "Record archive providers require at least one profile."
+            )
+        if not self.authority_modes:
+            raise RecordContractError(
+                "Record archive providers require an authority mode."
+            )
+        if any(mode not in _RECORD_SOURCE_AUTHORITIES for mode in self.authority_modes):
+            raise RecordContractError(
+                "Record archive providers declared an invalid authority mode."
+            )
+        if self.freshness_seconds is not None and self.freshness_seconds < 0:
+            raise RecordContractError(
+                "Record archive provider freshness cannot be negative."
+            )
+
+
+@dataclass(frozen=True, slots=True)
+class RecordArchiveTransferRequest:
+    package: RecordTransferPackage
+    purpose: str
+    idempotency_key: str
+    institutional_context: Mapping[str, object] = field(default_factory=dict)
+
+    def __post_init__(self) -> None:
+        _require_text_fields(self, "purpose", "idempotency_key")
+        if len(self.purpose) > 255 or len(self.idempotency_key) > 255:
+            raise RecordContractError(
+                "Record archive purpose or idempotency key is too long."
+            )
+
+
+@dataclass(frozen=True, slots=True)
+class RecordArchiveReceipt:
+    provider_id: str
+    package_id: str
+    outcome: RecordArchiveOutcome
+    observed_at: datetime
+    receipt_sha256: str
+    external_reference: str | None = None
+    retry_safe: bool = False
+    simulated: bool = False
+    metadata: Mapping[str, object] = field(default_factory=dict)
+
+    def __post_init__(self) -> None:
+        _require_text_fields(
+            self,
+            "provider_id",
+            "package_id",
+            "outcome",
+            "receipt_sha256",
+        )
+        _require_sha256(self.receipt_sha256, "Record archive receipt")
+        if self.outcome not in _RECORD_ARCHIVE_OUTCOMES:
+            raise RecordContractError("Record archive receipt outcome is invalid.")
+        if self.outcome == "outcome_unknown" and self.retry_safe:
+            raise RecordContractError(
+                "Unknown archive outcomes cannot be declared retry-safe."
+            )
+
+
+@runtime_checkable
+class RecordSourceProvider(Protocol):
+    provider_id: str
+
+    def resource_types(self) -> Sequence[str]: ...
+
+    def resolve(
+        self,
+        session: object,
+        principal: object,
+        *,
+        locator: RecordSourceLocator,
+        purpose: str,
+    ) -> RecordSourceReference:
+        """Resolve one currently authorized, exact source revision."""
+
+
+@runtime_checkable
+class RecordFilingService(Protocol):
+    def file(
+        self,
+        session: object,
+        principal: object,
+        *,
+        request: RecordFilingRequest,
+    ) -> RecordFilingResult: ...
+
+
+@runtime_checkable
+class RecordArchiveProvider(Protocol):
+    provider_id: str
+
+    def state(self) -> RecordArchiveProviderState: ...
+
+    def dispatch(
+        self,
+        session: object,
+        principal: object,
+        *,
+        request: RecordArchiveTransferRequest,
+    ) -> RecordArchiveReceipt:
+        """Dispatch one prepared package without retrying an unknown outcome."""
+
+
+def record_source_capability(source_module: str) -> str:
+    normalized = _capability_suffix(source_module, "source module")
+    return f"{CAPABILITY_RECORD_SOURCE_PREFIX}{normalized}"
+
+
+def record_archive_capability(provider_id: str) -> str:
+    normalized = _capability_suffix(provider_id, "archive provider")
+    return f"{CAPABILITY_RECORD_ARCHIVE_PREFIX}{normalized}"
+
+
+def record_source_capabilities(registry: object | None) -> tuple[str, ...]:
+    if registry is None or not hasattr(registry, "capability_names"):
+        return ()
+    return tuple(
+        name
+        for name in registry.capability_names()
+        if str(name).startswith(CAPABILITY_RECORD_SOURCE_PREFIX)
+    )
+
+
+def record_archive_capabilities(registry: object | None) -> tuple[str, ...]:
+    if registry is None or not hasattr(registry, "capability_names"):
+        return ()
+    return tuple(
+        name
+        for name in registry.capability_names()
+        if str(name).startswith(CAPABILITY_RECORD_ARCHIVE_PREFIX)
+    )
+
+
+def _require_text_fields(value: object, *field_names: str) -> None:
+    for field_name in field_names:
+        if not str(getattr(value, field_name, "") or "").strip():
+            raise RecordContractError(
+                f"Record contract field {field_name} is required."
+            )
+
+
+def _capability_suffix(value: str, label: str) -> str:
+    normalized = value.strip().lower()
+    if not normalized or any(
+        character not in "abcdefghijklmnopqrstuvwxyz0123456789_-"
+        for character in normalized
+    ):
+        raise RecordContractError(f"Record {label} identifiers are invalid.")
+    return normalized
+
+
+def _require_sha256(value: str, label: str) -> None:
+    digest = value.removeprefix("sha256:")
+    if len(digest) != 64 or any(
+        character not in "0123456789abcdefABCDEF" for character in digest
+    ):
+        raise RecordContractError(f"{label} SHA-256 must be hexadecimal.")
+
+
+__all__ = [
+    "CAPABILITY_RECORD_ARCHIVE_PREFIX",
+    "CAPABILITY_RECORDS_FILING",
+    "CAPABILITY_RECORD_SOURCE_PREFIX",
+    "RecordArchiveOutcome",
+    "RecordArchiveProvider",
+    "RecordArchiveProviderState",
+    "RecordArchiveReceipt",
+    "RecordArchiveTransferRequest",
+    "RecordContractError",
+    "RecordFilingRequest",
+    "RecordFilingResult",
+    "RecordFilingService",
+    "RecordSourceAuthority",
+    "RecordSourceLocator",
+    "RecordSourceProvider",
+    "RecordSourceReference",
+    "RecordTransferPackage",
+    "record_archive_capabilities",
+    "record_archive_capability",
+    "record_source_capabilities",
+    "record_source_capability",
+]
@@ -0,0 +1,258 @@
+from __future__ import annotations
+
+from collections.abc import Callable, Mapping
+from datetime import datetime
+from typing import Any
+
+from govoplan_core.core.operations import (
+    RuntimeWorkState,
+    RuntimeWorkStatus,
+    RuntimeWorkStatusContext,
+)
+from govoplan_core.settings import settings
+
+
+QueueDepthReader = Callable[[list[str]], Mapping[str, int | None]]
+
+
+def celery_runtime_work_status(context: RuntimeWorkStatusContext) -> RuntimeWorkStatus:
+    """Observe the built-in Celery backend without exposing it to Ops."""
+
+    queues = _configured_queues()
+    backend_configured = bool(str(settings.redis_url or "").strip())
+    if not settings.celery_enabled:
+        return _status(
+            context,
+            enabled=False,
+            configured=backend_configured,
+            state="disabled",
+            detail="Background workers are intentionally disabled.",
+            active_workers=0,
+            queue_depths={queue: None for queue in queues},
+            active_work=0,
+            reserved_work=0,
+            guidance=(
+                "Synchronous development paths may be used in development. "
+                "Enable and monitor workers before production queue-backed work."
+                if context.profile in {"development", "local-dev"}
+                else "Enable a worker backend before accepting queue-backed work."
+            ),
+        )
+    if not backend_configured or not queues:
+        return _status(
+            context,
+            enabled=True,
+            configured=False,
+            state="unconfigured",
+            detail="Background workers are enabled but their backend or queue list is not configured.",
+            queue_depths={queue: None for queue in queues},
+            guidance="Configure the broker and an explicit queue list, then start the required worker pools.",
+        )
+
+    try:
+        from govoplan_core.celery_app import celery
+
+        inspector = celery.control.inspect(timeout=0.75)
+        return collect_celery_runtime_work_status(
+            context,
+            inspector=inspector,
+            queues=queues,
+            queue_depth_reader=_redis_queue_depths,
+        )
+    except Exception:  # noqa: BLE001 - status must isolate and sanitize provider failures.
+        return _status(
+            context,
+            enabled=True,
+            configured=True,
+            state="unreachable",
+            detail="The configured worker backend did not return bounded status evidence.",
+            queue_depths={queue: None for queue in queues},
+            guidance="Verify broker reachability and worker processes; do not infer health from missing metrics.",
+        )
+
+
+def collect_celery_runtime_work_status(
+    context: RuntimeWorkStatusContext,
+    *,
+    inspector: Any,
+    queues: list[str],
+    queue_depth_reader: QueueDepthReader,
+) -> RuntimeWorkStatus:
+    replies = inspector.ping() or {}
+    if not isinstance(replies, Mapping) or not replies:
+        state = "starting" if _fresh_worker_nodes(context) else "unreachable"
+        return _status(
+            context,
+            enabled=True,
+            configured=True,
+            state=state,
+            detail=(
+                "Worker processes are starting but have not answered the bounded status probe."
+                if state == "starting"
+                else "No configured worker answered the bounded status probe."
+            ),
+            active_workers=0,
+            queue_depths={queue: None for queue in queues},
+            guidance="Wait for startup or verify worker and broker connectivity.",
+        )
+
+    active_queues_by_worker = inspector.active_queues() or {}
+    active_by_worker = inspector.active() or {}
+    reserved_by_worker = inspector.reserved() or {}
+    active_queues = sorted(
+        {
+            str(queue.get("name"))
+            for worker_queues in active_queues_by_worker.values()
+            if isinstance(worker_queues, list)
+            for queue in worker_queues
+            if isinstance(queue, Mapping) and queue.get("name")
+        }
+    )
+    missing_queues = sorted(set(queues) - set(active_queues))
+    active_work = _task_count(active_by_worker)
+    reserved_work = _task_count(reserved_by_worker)
+    try:
+        measured_depths = dict(queue_depth_reader(queues))
+    except Exception:  # noqa: BLE001 - queue depth remains explicitly unsupported.
+        measured_depths = {}
+    queue_depths = {
+        queue: _bounded_count(measured_depths.get(queue)) for queue in queues
+    }
+    known_depth = sum(value for value in queue_depths.values() if value is not None)
+    worker_nodes = _worker_nodes(context)
+    stale_nodes = [node for node in worker_nodes if node.get("stale") is True]
+    latest_heartbeat = _latest_heartbeat(worker_nodes)
+
+    if stale_nodes and len(stale_nodes) >= len(worker_nodes) > 0:
+        state = "stale"
+        detail = "All registered worker heartbeats are stale."
+        guidance = "Restore worker heartbeats or replace the stale worker incarnations."
+    elif missing_queues or stale_nodes:
+        state = "degraded"
+        detail = "Worker status is partial: a queue lacks a consumer or a registered worker is stale."
+        guidance = "Restore the missing queue consumers and investigate stale worker heartbeats."
+    elif active_work + reserved_work + known_depth > 0:
+        state = "busy"
+        detail = "Workers are processing or waiting to process queued work."
+        guidance = "Monitor queue age and failures; scale only within configured provider limits."
+    elif all(value is not None for value in queue_depths.values()):
+        state = "idle"
+        detail = "Workers are available and all measured queues are empty."
+        guidance = "No action is required."
+    else:
+        state = "healthy"
+        detail = "Workers answered and cover all configured queues; queue depth is unavailable."
+        guidance = "Treat queue depth as unavailable, not empty."
+
+    return _status(
+        context,
+        enabled=True,
+        configured=True,
+        state=state,
+        detail=detail,
+        active_workers=len(replies),
+        last_heartbeat_at=latest_heartbeat,
+        queue_depths=queue_depths,
+        active_work=active_work,
+        reserved_work=reserved_work,
+        guidance=guidance,
+    )
+
+
+def _status(
+    context: RuntimeWorkStatusContext,
+    *,
+    enabled: bool,
+    configured: bool,
+    state: RuntimeWorkState,
+    detail: str,
+    active_workers: int | None = None,
+    last_heartbeat_at: datetime | None = None,
+    queue_depths: Mapping[str, int | None] | None = None,
+    active_work: int | None = None,
+    reserved_work: int | None = None,
+    guidance: str,
+) -> RuntimeWorkStatus:
+    return RuntimeWorkStatus(
+        provider_id="core.celery",
+        label="Background workers",
+        backend="Celery",
+        enabled=enabled,
+        configured=configured,
+        state=state,
+        detail=detail,
+        observed_at=context.observed_at,
+        active_workers=active_workers,
+        last_heartbeat_at=last_heartbeat_at,
+        queue_depths=queue_depths or {},
+        active_work=active_work,
+        reserved_work=reserved_work,
+        failures=None,
+        stale_after_seconds=context.stale_after_seconds,
+        guidance=guidance,
+    )
+
+
+def _configured_queues() -> list[str]:
+    return sorted(
+        {
+            item.strip()
+            for item in str(settings.celery_queues or "").split(",")
+            if item.strip()
+        }
+    )
+
+
+def _redis_queue_depths(queues: list[str]) -> Mapping[str, int | None]:
+    from redis import Redis
+
+    client = Redis.from_url(
+        settings.redis_url,
+        socket_connect_timeout=0.75,
+        socket_timeout=0.75,
+    )
+    pipeline = client.pipeline(transaction=False)
+    for queue in queues:
+        pipeline.llen(queue)
+    values = pipeline.execute()
+    return {
+        queue: _bounded_count(value)
+        for queue, value in zip(queues, values, strict=True)
+    }
+
+
+def _task_count(tasks_by_worker: object) -> int:
+    if not isinstance(tasks_by_worker, Mapping):
+        return 0
+    return sum(
+        len(tasks) for tasks in tasks_by_worker.values() if isinstance(tasks, list)
+    )
+
+
+def _bounded_count(value: object) -> int | None:
+    if isinstance(value, bool) or not isinstance(value, int | float):
+        return None
+    return max(0, int(value))
+
+
+def _worker_nodes(context: RuntimeWorkStatusContext) -> list[Mapping[str, object]]:
+    return [node for node in context.runtime_nodes if node.get("role") == "worker"]
+
+
+def _fresh_worker_nodes(context: RuntimeWorkStatusContext) -> list[Mapping[str, object]]:
+    return [node for node in _worker_nodes(context) if node.get("stale") is not True]
+
+
+def _latest_heartbeat(nodes: list[Mapping[str, object]]) -> datetime | None:
+    values: list[datetime] = []
+    for node in nodes:
+        raw = node.get("last_heartbeat_at")
+        if isinstance(raw, datetime):
+            values.append(raw)
+            continue
+        if isinstance(raw, str):
+            try:
+                values.append(datetime.fromisoformat(raw.replace("Z", "+00:00")))
+            except ValueError:
+                continue
+    return max(values) if values else None
@@ -0,0 +1,621 @@
+from __future__ import annotations
+
+import hashlib
+import json
+import re
+from collections.abc import Mapping, Sequence
+from dataclasses import dataclass, field
+from typing import Literal, Protocol, runtime_checkable
+
+
+SEMANTIC_DOCUMENTATION_SUBJECT_CAPABILITY_PREFIX = (
+    "documentation.semantic_subjects."
+)
+SEMANTIC_DOCUMENTATION_SUBJECT_CONTRACT_VERSION = "1"
+
+SemanticDocumentationSubjectAvailability = Literal[
+    "available",
+    "changed",
+    "superseded",
+    "missing",
+    "temporarily_unavailable",
+]
+
+_MODULE_ID_RE = re.compile(r"^[a-z][a-z0-9_]{0,79}$")
+_KIND_RE = re.compile(r"^[a-z][a-z0-9_.-]{0,119}$")
+_IDENTIFIER_RE = re.compile(r"^[A-Za-z0-9][A-Za-z0-9_.:@-]{0,254}$")
+_LOCALE_RE = re.compile(r"^[A-Za-z]{2,3}(?:-[A-Za-z0-9]{2,8})*$")
+_REASON_CODE_RE = re.compile(r"^[a-z][a-z0-9_]{0,79}$")
+_SHA256_RE = re.compile(r"^(?:sha256:)?[0-9a-fA-F]{64}$")
+
+
+class SemanticDocumentationContractError(ValueError):
+    """Raised when a semantic-documentation subject violates the Core contract."""
+
+
+@dataclass(frozen=True, slots=True)
+class SemanticDocumentationSubjectAnchor:
+    kind: str
+    id: str
+
+    def __post_init__(self) -> None:
+        _require_match(self.kind, _KIND_RE, "Semantic subject anchor kind")
+        _require_match(self.id, _IDENTIFIER_RE, "Semantic subject anchor id")
+
+    def to_dict(self) -> dict[str, str]:
+        return {"kind": self.kind, "id": self.id}
+
+    @classmethod
+    def from_mapping(
+        cls, value: Mapping[str, object]
+    ) -> SemanticDocumentationSubjectAnchor:
+        _require_keys(value, {"kind", "id"}, "Semantic subject anchor")
+        return cls(kind=_required_text(value, "kind"), id=_required_text(value, "id"))
+
+
+@dataclass(frozen=True, slots=True)
+class SemanticDocumentationSubjectReference:
+    module_id: str
+    tenant_id: str
+    subject_kind: str
+    subject_id: str
+    anchor: SemanticDocumentationSubjectAnchor | None = None
+    observed_revision: str | None = None
+    observed_fingerprint: str | None = None
+
+    def __post_init__(self) -> None:
+        _require_match(self.module_id, _MODULE_ID_RE, "Semantic subject module id")
+        _require_match(self.tenant_id, _IDENTIFIER_RE, "Semantic subject tenant id")
+        _require_match(self.subject_kind, _KIND_RE, "Semantic subject kind")
+        _require_match(self.subject_id, _IDENTIFIER_RE, "Semantic subject id")
+        _optional_text(self.observed_revision, "Semantic subject observed revision", 255)
+        if self.observed_fingerprint is not None and not _SHA256_RE.fullmatch(
+            self.observed_fingerprint
+        ):
+            raise SemanticDocumentationContractError(
+                "Semantic subject observed fingerprint must be a SHA-256 digest."
+            )
+
+    @property
+    def stable_key(self) -> str:
+        identity = {
+            "anchor": self.anchor.to_dict() if self.anchor else None,
+            "module_id": self.module_id,
+            "subject_id": self.subject_id,
+            "subject_kind": self.subject_kind,
+            "tenant_id": self.tenant_id,
+        }
+        encoded = json.dumps(
+            identity, ensure_ascii=False, sort_keys=True, separators=(",", ":")
+        ).encode("utf-8")
+        return f"sha256:{hashlib.sha256(encoded).hexdigest()}"
+
+    def to_dict(self) -> dict[str, object]:
+        return {
+            "module_id": self.module_id,
+            "tenant_id": self.tenant_id,
+            "subject_kind": self.subject_kind,
+            "subject_id": self.subject_id,
+            "anchor": self.anchor.to_dict() if self.anchor else None,
+            "observed_revision": self.observed_revision,
+            "observed_fingerprint": self.observed_fingerprint,
+        }
+
+    @classmethod
+    def from_mapping(
+        cls, value: Mapping[str, object]
+    ) -> SemanticDocumentationSubjectReference:
+        _require_keys(
+            value,
+            {
+                "module_id",
+                "tenant_id",
+                "subject_kind",
+                "subject_id",
+                "anchor",
+                "observed_revision",
+                "observed_fingerprint",
+            },
+            "Semantic subject reference",
+        )
+        raw_anchor = value.get("anchor")
+        if raw_anchor is not None and not isinstance(raw_anchor, Mapping):
+            raise SemanticDocumentationContractError(
+                "Semantic subject anchor must be an object."
+            )
+        return cls(
+            module_id=_required_text(value, "module_id"),
+            tenant_id=_required_text(value, "tenant_id"),
+            subject_kind=_required_text(value, "subject_kind"),
+            subject_id=_required_text(value, "subject_id"),
+            anchor=(
+                SemanticDocumentationSubjectAnchor.from_mapping(raw_anchor)
+                if isinstance(raw_anchor, Mapping)
+                else None
+            ),
+            observed_revision=_mapping_optional_text(value, "observed_revision"),
+            observed_fingerprint=_mapping_optional_text(
+                value, "observed_fingerprint"
+            ),
+        )
+
+
+@dataclass(frozen=True, slots=True)
+class SemanticDocumentationBreadcrumb:
+    label: str
+    subject_kind: str
+    subject_id: str
+    anchor: SemanticDocumentationSubjectAnchor | None = None
+
+    def __post_init__(self) -> None:
+        _required_bounded_text(self.label, "Semantic subject breadcrumb label", 300)
+        _require_match(self.subject_kind, _KIND_RE, "Semantic breadcrumb kind")
+        _require_match(self.subject_id, _IDENTIFIER_RE, "Semantic breadcrumb id")
+
+    def to_dict(self) -> dict[str, object]:
+        return {
+            "label": self.label,
+            "subject_kind": self.subject_kind,
+            "subject_id": self.subject_id,
+            "anchor": self.anchor.to_dict() if self.anchor else None,
+        }
+
+
+@dataclass(frozen=True, slots=True)
+class SemanticDocumentationSubjectDescriptor:
+    reference: SemanticDocumentationSubjectReference
+    labels: Mapping[str, str]
+    descriptions: Mapping[str, str] = field(default_factory=dict)
+    breadcrumbs: tuple[SemanticDocumentationBreadcrumb, ...] = ()
+    route: str | None = None
+    route_anchor: str | None = None
+    audience: tuple[str, ...] = ()
+    classification: str = "internal"
+    required_scopes: tuple[str, ...] = ()
+
+    def __post_init__(self) -> None:
+        if not self.reference.observed_revision:
+            raise SemanticDocumentationContractError(
+                "Semantic subject descriptors require a current revision."
+            )
+        if not self.reference.observed_fingerprint:
+            raise SemanticDocumentationContractError(
+                "Semantic subject descriptors require a current fingerprint."
+            )
+        _localized_text(self.labels, "Semantic subject labels", required=True, limit=300)
+        _localized_text(
+            self.descriptions,
+            "Semantic subject descriptions",
+            required=False,
+            limit=2_000,
+        )
+        if len(self.breadcrumbs) > 32:
+            raise SemanticDocumentationContractError(
+                "Semantic subject breadcrumbs are limited to 32 items."
+            )
+        if self.route is not None:
+            _optional_text(self.route, "Semantic subject route", 2_000)
+            if not self.route.startswith("/") or self.route.startswith("//"):
+                raise SemanticDocumentationContractError(
+                    "Semantic subject routes must be local absolute paths."
+                )
+        if self.route_anchor is not None:
+            _require_match(
+                self.route_anchor,
+                _IDENTIFIER_RE,
+                "Semantic subject route anchor",
+            )
+        _text_tuple(self.audience, "Semantic subject audience", maximum=32)
+        _required_bounded_text(
+            self.classification, "Semantic subject classification", 120
+        )
+        _text_tuple(
+            self.required_scopes, "Semantic subject required scopes", maximum=64
+        )
+
+    def to_dict(self) -> dict[str, object]:
+        return {
+            "reference": self.reference.to_dict(),
+            "labels": dict(self.labels),
+            "descriptions": dict(self.descriptions),
+            "breadcrumbs": [item.to_dict() for item in self.breadcrumbs],
+            "route": self.route,
+            "route_anchor": self.route_anchor,
+            "audience": list(self.audience),
+            "classification": self.classification,
+            "required_scopes": list(self.required_scopes),
+        }
+
+
+@dataclass(frozen=True, slots=True)
+class SemanticDocumentationSubjectResolution:
+    requested_reference: SemanticDocumentationSubjectReference
+    availability: SemanticDocumentationSubjectAvailability
+    subject: SemanticDocumentationSubjectDescriptor | None = None
+    superseded_by: SemanticDocumentationSubjectReference | None = None
+    reason_code: str | None = None
+
+    def __post_init__(self) -> None:
+        if self.reason_code is not None:
+            _require_match(
+                self.reason_code, _REASON_CODE_RE, "Semantic resolution reason code"
+            )
+        if self.availability in {"available", "changed"}:
+            if self.subject is None:
+                raise SemanticDocumentationContractError(
+                    f"Semantic subject {self.availability} resolutions require a descriptor."
+                )
+            if (
+                self.subject.reference.stable_key
+                != self.requested_reference.stable_key
+            ):
+                raise SemanticDocumentationContractError(
+                    "Semantic subject resolution changed the requested identity."
+                )
+            changed = _reference_changed(
+                self.requested_reference, self.subject.reference
+            )
+            if self.availability == "available" and changed:
+                raise SemanticDocumentationContractError(
+                    "Changed semantic subjects must use the changed availability."
+                )
+            if self.availability == "changed" and not changed:
+                raise SemanticDocumentationContractError(
+                    "Changed semantic subject resolutions require a revision or fingerprint change."
+                )
+        elif self.subject is not None:
+            raise SemanticDocumentationContractError(
+                f"Semantic subject {self.availability} resolutions cannot include a descriptor."
+            )
+        if self.availability == "superseded":
+            if self.superseded_by is None:
+                raise SemanticDocumentationContractError(
+                    "Superseded semantic subjects require a replacement reference."
+                )
+        elif self.superseded_by is not None:
+            raise SemanticDocumentationContractError(
+                "Only superseded semantic subjects may declare a replacement."
+            )
+        if self.availability in {"missing", "temporarily_unavailable"} and not self.reason_code:
+            raise SemanticDocumentationContractError(
+                f"Semantic subject {self.availability} resolutions require a reason code."
+            )
+
+    def to_dict(self) -> dict[str, object]:
+        return {
+            "requested_reference": self.requested_reference.to_dict(),
+            "availability": self.availability,
+            "subject": self.subject.to_dict() if self.subject else None,
+            "superseded_by": (
+                self.superseded_by.to_dict() if self.superseded_by else None
+            ),
+            "reason_code": self.reason_code,
+        }
+
+
+@dataclass(frozen=True, slots=True)
+class SemanticDocumentationSubjectQuery:
+    tenant_id: str
+    query: str = ""
+    subject_kinds: tuple[str, ...] = ()
+    limit: int = 50
+    cursor: str | None = None
+
+    def __post_init__(self) -> None:
+        _require_match(self.tenant_id, _IDENTIFIER_RE, "Semantic query tenant id")
+        if not isinstance(self.query, str) or len(self.query) > 300:
+            raise SemanticDocumentationContractError(
+                "Semantic subject query must be text of at most 300 characters."
+            )
+        if self.query:
+            _required_bounded_text(self.query, "Semantic subject query", 300)
+        if not 1 <= self.limit <= 200:
+            raise SemanticDocumentationContractError(
+                "Semantic subject query limit must be between 1 and 200."
+            )
+        _text_tuple(self.subject_kinds, "Semantic query subject kinds", maximum=100)
+        for kind in self.subject_kinds:
+            _require_match(kind, _KIND_RE, "Semantic query subject kind")
+        _optional_text(self.cursor, "Semantic query cursor", 1_000)
+
+
+@dataclass(frozen=True, slots=True)
+class SemanticDocumentationSubjectPage:
+    subjects: tuple[SemanticDocumentationSubjectDescriptor, ...] = ()
+    next_cursor: str | None = None
+    has_more: bool = False
+
+    def __post_init__(self) -> None:
+        keys = tuple(item.reference.stable_key for item in self.subjects)
+        if len(keys) != len(set(keys)):
+            raise SemanticDocumentationContractError(
+                "Semantic subject pages cannot contain duplicate identities."
+            )
+        _optional_text(self.next_cursor, "Semantic subject page cursor", 1_000)
+        if self.has_more and not self.next_cursor:
+            raise SemanticDocumentationContractError(
+                "Semantic subject pages with more results require a cursor."
+            )
+
+
+@runtime_checkable
+class SemanticDocumentationSubjectProvider(Protocol):
+    provider_id: str
+    module_id: str
+    contract_version: str
+
+    def list_subjects(
+        self,
+        session: object,
+        principal: object,
+        *,
+        request: SemanticDocumentationSubjectQuery,
+    ) -> SemanticDocumentationSubjectPage: ...
+
+    def resolve_subject(
+        self,
+        session: object,
+        principal: object,
+        *,
+        reference: SemanticDocumentationSubjectReference,
+    ) -> SemanticDocumentationSubjectResolution | None:
+        """Return None when the principal may not know whether a subject exists."""
+
+
+def semantic_documentation_subject_capability(module_id: str) -> str:
+    _require_match(module_id, _MODULE_ID_RE, "Semantic subject module id")
+    return f"{SEMANTIC_DOCUMENTATION_SUBJECT_CAPABILITY_PREFIX}{module_id}"
+
+
+def semantic_documentation_subject_provider_names(
+    registry: object | None,
+) -> tuple[str, ...]:
+    if registry is None or not hasattr(registry, "capability_names"):
+        return ()
+    return tuple(
+        str(name)
+        for name in registry.capability_names()
+        if str(name).startswith(SEMANTIC_DOCUMENTATION_SUBJECT_CAPABILITY_PREFIX)
+    )
+
+
+def semantic_documentation_subject_providers(
+    registry: object | None,
+) -> tuple[tuple[str, SemanticDocumentationSubjectProvider], ...]:
+    if registry is None or not hasattr(registry, "capability"):
+        return ()
+    providers: list[tuple[str, SemanticDocumentationSubjectProvider]] = []
+    for capability_name in semantic_documentation_subject_provider_names(registry):
+        module_id = capability_name.removeprefix(
+            SEMANTIC_DOCUMENTATION_SUBJECT_CAPABILITY_PREFIX
+        )
+        provider = registry.capability(capability_name)
+        if not isinstance(provider, SemanticDocumentationSubjectProvider):
+            raise TypeError(
+                f"Invalid semantic-documentation provider capability: {capability_name}"
+            )
+        if provider.module_id != module_id:
+            raise SemanticDocumentationContractError(
+                f"Semantic provider module {provider.module_id!r} does not match "
+                f"capability {capability_name!r}."
+            )
+        if (
+            provider.contract_version
+            != SEMANTIC_DOCUMENTATION_SUBJECT_CONTRACT_VERSION
+        ):
+            raise SemanticDocumentationContractError(
+                f"Unsupported semantic-documentation provider contract: "
+                f"{provider.contract_version!r}."
+            )
+        providers.append((module_id, provider))
+    return tuple(providers)
+
+
+def list_semantic_documentation_subjects(
+    registry: object | None,
+    session: object,
+    principal: object,
+    *,
+    request: SemanticDocumentationSubjectQuery,
+) -> tuple[tuple[str, SemanticDocumentationSubjectPage], ...]:
+    if _principal_tenant_id(principal) != request.tenant_id:
+        return ()
+    pages: list[tuple[str, SemanticDocumentationSubjectPage]] = []
+    for module_id, provider in semantic_documentation_subject_providers(registry):
+        page = provider.list_subjects(
+            session,
+            principal,
+            request=request,
+        )
+        if any(
+            subject.reference.module_id != module_id
+            or subject.reference.tenant_id != request.tenant_id
+            for subject in page.subjects
+        ):
+            raise SemanticDocumentationContractError(
+                f"Semantic provider {module_id!r} returned a foreign subject."
+            )
+        pages.append((module_id, page))
+    return tuple(pages)
+
+
+def resolve_semantic_documentation_subject(
+    registry: object | None,
+    session: object,
+    principal: object,
+    *,
+    reference: SemanticDocumentationSubjectReference,
+) -> SemanticDocumentationSubjectResolution | None:
+    if _principal_tenant_id(principal) != reference.tenant_id:
+        return None
+    capability_name = semantic_documentation_subject_capability(reference.module_id)
+    if (
+        registry is None
+        or not hasattr(registry, "has_capability")
+        or not registry.has_capability(capability_name)
+    ):
+        return SemanticDocumentationSubjectResolution(
+            requested_reference=reference,
+            availability="temporarily_unavailable",
+            reason_code="provider_unavailable",
+        )
+    provider = registry.capability(capability_name)
+    if not isinstance(provider, SemanticDocumentationSubjectProvider):
+        raise TypeError(
+            f"Invalid semantic-documentation provider capability: {capability_name}"
+        )
+    if (
+        provider.module_id != reference.module_id
+        or provider.contract_version
+        != SEMANTIC_DOCUMENTATION_SUBJECT_CONTRACT_VERSION
+    ):
+        raise SemanticDocumentationContractError(
+            f"Semantic provider {capability_name!r} does not match the Core contract."
+        )
+    result = provider.resolve_subject(
+        session,
+        principal,
+        reference=reference,
+    )
+    if result is None:
+        return None
+    if result.requested_reference != reference:
+        raise SemanticDocumentationContractError(
+            "Semantic provider returned a resolution for another reference."
+        )
+    return result
+
+
+def semantic_documentation_fingerprint(value: object) -> str:
+    try:
+        encoded = json.dumps(
+            value,
+            ensure_ascii=False,
+            sort_keys=True,
+            separators=(",", ":"),
+            allow_nan=False,
+        ).encode("utf-8")
+    except (TypeError, ValueError) as exc:
+        raise SemanticDocumentationContractError(
+            "Semantic fingerprint input must be canonical JSON data."
+        ) from exc
+    return f"sha256:{hashlib.sha256(encoded).hexdigest()}"
+
+
+def _reference_changed(
+    requested: SemanticDocumentationSubjectReference,
+    current: SemanticDocumentationSubjectReference,
+) -> bool:
+    comparisons = (
+        (requested.observed_revision, current.observed_revision),
+        (requested.observed_fingerprint, current.observed_fingerprint),
+    )
+    return any(expected is not None and expected != actual for expected, actual in comparisons)
+
+
+def _principal_tenant_id(principal: object) -> str:
+    return str(getattr(principal, "tenant_id", "") or "")
+
+
+def _localized_text(
+    values: Mapping[str, str],
+    label: str,
+    *,
+    required: bool,
+    limit: int,
+) -> None:
+    if required and not values:
+        raise SemanticDocumentationContractError(f"{label} are required.")
+    if len(values) > 20:
+        raise SemanticDocumentationContractError(f"{label} are limited to 20 locales.")
+    for locale, value in values.items():
+        if not _LOCALE_RE.fullmatch(str(locale)):
+            raise SemanticDocumentationContractError(
+                f"{label} contain an invalid locale: {locale!r}."
+            )
+        _required_bounded_text(value, f"{label} value", limit)
+
+
+def _text_tuple(values: Sequence[str], label: str, *, maximum: int) -> None:
+    if len(values) > maximum:
+        raise SemanticDocumentationContractError(
+            f"{label} are limited to {maximum} items."
+        )
+    normalized = tuple(str(value).strip() for value in values)
+    if any(not value or len(value) > 255 for value in normalized):
+        raise SemanticDocumentationContractError(
+            f"{label} must contain non-empty bounded text."
+        )
+    if len(normalized) != len(set(normalized)):
+        raise SemanticDocumentationContractError(f"{label} must be unique.")
+
+
+def _require_match(value: str, pattern: re.Pattern[str], label: str) -> None:
+    if not isinstance(value, str) or not pattern.fullmatch(value):
+        raise SemanticDocumentationContractError(f"{label} is invalid.")
+
+
+def _required_bounded_text(value: str, label: str, limit: int) -> None:
+    if not isinstance(value, str) or not value.strip() or len(value) > limit:
+        raise SemanticDocumentationContractError(
+            f"{label} must be non-empty and at most {limit} characters."
+        )
+    if any(ord(character) < 32 and character not in "\n\t" for character in value):
+        raise SemanticDocumentationContractError(f"{label} contains control characters.")
+
+
+def _optional_text(value: str | None, label: str, limit: int) -> None:
+    if value is not None:
+        _required_bounded_text(value, label, limit)
+
+
+def _require_keys(
+    value: Mapping[str, object], allowed: set[str], label: str
+) -> None:
+    unexpected = sorted(str(key) for key in value if str(key) not in allowed)
+    if unexpected:
+        raise SemanticDocumentationContractError(
+            f"{label} contains unsupported fields: {', '.join(unexpected)}."
+        )
+
+
+def _required_text(value: Mapping[str, object], key: str) -> str:
+    result = value.get(key)
+    if not isinstance(result, str) or not result.strip():
+        raise SemanticDocumentationContractError(
+            f"Semantic subject field {key} is required."
+        )
+    return result
+
+
+def _mapping_optional_text(value: Mapping[str, object], key: str) -> str | None:
+    result = value.get(key)
+    if result is None:
+        return None
+    if not isinstance(result, str):
+        raise SemanticDocumentationContractError(
+            f"Semantic subject field {key} must be text."
+        )
+    return result
+
+
+__all__ = [
+    "SEMANTIC_DOCUMENTATION_SUBJECT_CAPABILITY_PREFIX",
+    "SEMANTIC_DOCUMENTATION_SUBJECT_CONTRACT_VERSION",
+    "SemanticDocumentationBreadcrumb",
+    "SemanticDocumentationContractError",
+    "SemanticDocumentationSubjectAnchor",
+    "SemanticDocumentationSubjectAvailability",
+    "SemanticDocumentationSubjectDescriptor",
+    "SemanticDocumentationSubjectPage",
+    "SemanticDocumentationSubjectProvider",
+    "SemanticDocumentationSubjectQuery",
+    "SemanticDocumentationSubjectReference",
+    "SemanticDocumentationSubjectResolution",
+    "list_semantic_documentation_subjects",
+    "resolve_semantic_documentation_subject",
+    "semantic_documentation_fingerprint",
+    "semantic_documentation_subject_capability",
+    "semantic_documentation_subject_provider_names",
+    "semantic_documentation_subject_providers",
+]
@@ -0,0 +1,332 @@
+from __future__ import annotations
+
+from collections.abc import Callable, Mapping
+from dataclasses import dataclass, field
+from datetime import datetime
+from typing import Literal, Protocol, runtime_checkable
+
+from govoplan_core.core.modules import ModuleContext
+
+
+WorkItemStatus = Literal[
+    "open",
+    "in_progress",
+    "deferred",
+    "blocked",
+    "completed",
+    "cancelled",
+]
+WorkItemPriority = Literal["low", "normal", "high", "urgent"]
+WorkAssignmentKind = Literal[
+    "account",
+    "group",
+    "role",
+    "function",
+    "function_assignment",
+    "anyone",
+]
+WORK_ITEM_CONTRACT_VERSION = "1"
+CAPABILITY_TASK_COMMANDS = "tasks.commands"
+
+
+@dataclass(frozen=True, slots=True)
+class WorkAssignmentRef:
+    kind: WorkAssignmentKind
+    id: str
+    label: str | None = None
+
+    def __post_init__(self) -> None:
+        if self.kind not in {
+            "account",
+            "group",
+            "role",
+            "function",
+            "function_assignment",
+            "anyone",
+        }:
+            raise ValueError(f"Unsupported work-assignment kind: {self.kind!r}.")
+        if not self.id.strip():
+            raise ValueError("Work assignments require an id.")
+        if len(self.id) > 255:
+            raise ValueError("Work assignment ids are limited to 255 characters.")
+        if self.label is not None and len(self.label) > 500:
+            raise ValueError("Work assignment labels are limited to 500 characters.")
+        if self.kind == "anyone" and self.id != "*":
+            raise ValueError("Broad work assignments use the canonical '*' id.")
+
+
+@dataclass(frozen=True, slots=True)
+class WorkSourceRef:
+    module_id: str
+    resource_type: str
+    resource_id: str
+    revision: str | None = None
+    url: str | None = None
+    label: str | None = None
+
+    def __post_init__(self) -> None:
+        required = (self.module_id, self.resource_type, self.resource_id)
+        if any(not value.strip() for value in required):
+            raise ValueError("Work source references require module, type, and id.")
+        limits = {
+            "module_id": 100,
+            "resource_type": 100,
+            "resource_id": 255,
+            "revision": 255,
+            "url": 1_500,
+            "label": 500,
+        }
+        for field_name, limit in limits.items():
+            value = getattr(self, field_name)
+            if value is not None and len(value) > limit:
+                raise ValueError(
+                    f"Work source {field_name} is limited to {limit} characters."
+                )
+
+
+@dataclass(frozen=True, slots=True)
+class WorkItem:
+    id: str
+    provider_id: str
+    owner_module: str
+    tenant_id: str
+    title: str
+    status: WorkItemStatus = "open"
+    priority: WorkItemPriority = "normal"
+    summary: str | None = None
+    required_action: str | None = None
+    action_url: str | None = None
+    due_at: datetime | None = None
+    deferred_until: datetime | None = None
+    assignments: tuple[WorkAssignmentRef, ...] = ()
+    sources: tuple[WorkSourceRef, ...] = ()
+    provenance: Mapping[str, object] = field(default_factory=dict)
+    metadata: Mapping[str, object] = field(default_factory=dict)
+    revision: str = "1"
+    created_at: datetime | None = None
+    updated_at: datetime | None = None
+
+    def __post_init__(self) -> None:
+        required = {
+            "id": self.id,
+            "provider_id": self.provider_id,
+            "owner_module": self.owner_module,
+            "tenant_id": self.tenant_id,
+            "title": self.title,
+            "revision": self.revision,
+        }
+        if any(not value.strip() for value in required.values()):
+            raise ValueError(
+                "Work items require stable identity, owner, tenant, and title."
+            )
+        limits = {
+            "id": 255,
+            "provider_id": 200,
+            "owner_module": 100,
+            "tenant_id": 255,
+            "title": 500,
+            "summary": 4_000,
+            "required_action": 500,
+            "action_url": 1_500,
+            "revision": 255,
+        }
+        for field_name, limit in limits.items():
+            value = getattr(self, field_name)
+            if value is not None and len(value) > limit:
+                raise ValueError(
+                    f"Work item {field_name} is limited to {limit} characters."
+                )
+        if len(self.assignments) > 100 or len(self.sources) > 100:
+            raise ValueError("Work items support at most 100 assignments and sources.")
+        _validate_action_url(self.action_url)
+        if self.status not in {
+            "open",
+            "in_progress",
+            "deferred",
+            "blocked",
+            "completed",
+            "cancelled",
+        }:
+            raise ValueError(f"Unsupported work-item status: {self.status!r}.")
+        if self.priority not in {"low", "normal", "high", "urgent"}:
+            raise ValueError(f"Unsupported work-item priority: {self.priority!r}.")
+
+
+@dataclass(frozen=True, slots=True)
+class WorkItemQuery:
+    tenant_id: str
+    statuses: tuple[WorkItemStatus, ...] = (
+        "open",
+        "in_progress",
+        "deferred",
+        "blocked",
+    )
+    priorities: tuple[WorkItemPriority, ...] = ()
+    provider_ids: tuple[str, ...] = ()
+    owner_modules: tuple[str, ...] = ()
+    due_before: datetime | None = None
+    text: str = ""
+    limit: int = 100
+
+    def __post_init__(self) -> None:
+        if not self.tenant_id.strip():
+            raise ValueError("Work-item queries require a tenant.")
+        if not 1 <= self.limit <= 500:
+            raise ValueError("Work-item query limits must be between 1 and 500.")
+        normalized = self.text.strip()
+        if len(normalized) > 500:
+            raise ValueError("Work-item query text is limited to 500 characters.")
+        if len(self.provider_ids) > 50 or len(self.owner_modules) > 50:
+            raise ValueError("Work-item queries support at most 50 provider filters.")
+        object.__setattr__(self, "text", normalized)
+
+
+@dataclass(frozen=True, slots=True)
+class WorkItemPage:
+    items: tuple[WorkItem, ...]
+    total: int
+    truncated: bool = False
+
+    def __post_init__(self) -> None:
+        if self.total < len(self.items):
+            raise ValueError(
+                "Work-item totals cannot be smaller than the returned page."
+            )
+
+
+@runtime_checkable
+class WorkItemProvider(Protocol):
+    def list_items(
+        self,
+        session: object,
+        principal: object,
+        *,
+        query: WorkItemQuery,
+    ) -> WorkItemPage:
+        """Return only items the current principal may discover and act on."""
+
+
+@dataclass(frozen=True, slots=True)
+class TaskCreateCommand:
+    tenant_id: str
+    title: str
+    idempotency_key: str
+    summary: str | None = None
+    priority: WorkItemPriority = "normal"
+    due_at: datetime | None = None
+    required_action: str | None = None
+    action_url: str | None = None
+    assignments: tuple[WorkAssignmentRef, ...] = ()
+    sources: tuple[WorkSourceRef, ...] = ()
+    provenance: Mapping[str, object] = field(default_factory=dict)
+    metadata: Mapping[str, object] = field(default_factory=dict)
+
+    def __post_init__(self) -> None:
+        if not self.tenant_id.strip() or not self.title.strip():
+            raise ValueError("Task commands require a tenant and title.")
+        if not self.idempotency_key.strip() or len(self.idempotency_key) > 255:
+            raise ValueError("Task commands require a bounded idempotency key.")
+        if not self.assignments:
+            raise ValueError("Explicit tasks require at least one assignment.")
+        if self.priority not in {"low", "normal", "high", "urgent"}:
+            raise ValueError(f"Unsupported task priority: {self.priority!r}.")
+        limits = {
+            "title": 500,
+            "summary": 4_000,
+            "required_action": 500,
+            "action_url": 1_500,
+        }
+        for field_name, limit in limits.items():
+            value = getattr(self, field_name)
+            if value is not None and len(value) > limit:
+                raise ValueError(
+                    f"Task command {field_name} is limited to {limit} characters."
+                )
+        if len(self.assignments) > 100 or len(self.sources) > 100:
+            raise ValueError(
+                "Task commands support at most 100 assignments and sources."
+            )
+        _validate_action_url(self.action_url)
+
+
+def _validate_action_url(value: str | None) -> None:
+    if value is None:
+        return
+    candidate = value.strip()
+    if not candidate:
+        return
+    if (
+        not candidate.startswith("/")
+        or candidate.startswith("//")
+        or "\\" in candidate
+        or any(ord(character) < 32 or ord(character) == 127 for character in candidate)
+    ):
+        raise ValueError("Work-item action URLs must be application-relative paths.")
+
+
+@runtime_checkable
+class TaskCommandProvider(Protocol):
+    def create_task(
+        self,
+        session: object,
+        principal: object,
+        *,
+        command: TaskCreateCommand,
+    ) -> WorkItem: ...
+
+
+WorkItemProviderFactory = Callable[[ModuleContext], WorkItemProvider]
+
+
+@dataclass(frozen=True, slots=True)
+class WorkItemProviderRegistration:
+    id: str
+    factory: WorkItemProviderFactory
+    order: int = 100
+
+    def create(self, context: ModuleContext) -> WorkItemProvider:
+        provider = self.factory(context)
+        if not isinstance(provider, WorkItemProvider):
+            raise TypeError(
+                f"Work-item provider {self.id!r} does not implement WorkItemProvider."
+            )
+        return provider
+
+
+@dataclass(frozen=True, slots=True)
+class RegisteredWorkItemProvider:
+    module_id: str
+    registration: WorkItemProviderRegistration
+
+
+def task_command_provider(registry: object | None) -> TaskCommandProvider | None:
+    if (
+        registry is None
+        or not hasattr(registry, "has_capability")
+        or not hasattr(registry, "capability")
+        or not registry.has_capability(CAPABILITY_TASK_COMMANDS)
+    ):
+        return None
+    provider = registry.capability(CAPABILITY_TASK_COMMANDS)
+    return provider if isinstance(provider, TaskCommandProvider) else None
+
+
+__all__ = [
+    "CAPABILITY_TASK_COMMANDS",
+    "RegisteredWorkItemProvider",
+    "TaskCommandProvider",
+    "TaskCreateCommand",
+    "WORK_ITEM_CONTRACT_VERSION",
+    "WorkAssignmentKind",
+    "WorkAssignmentRef",
+    "WorkItem",
+    "WorkItemPage",
+    "WorkItemPriority",
+    "WorkItemProvider",
+    "WorkItemProviderFactory",
+    "WorkItemProviderRegistration",
+    "WorkItemQuery",
+    "WorkItemStatus",
+    "WorkSourceRef",
+    "task_command_provider",
+]
@@ -8,6 +8,7 @@ from typing import Literal, Protocol, runtime_checkable

 CAPABILITY_TEMPLATE_CATALOG = "templates.catalog"
 CAPABILITY_TEMPLATE_RENDERER = "templates.renderer"
+CAPABILITY_TEMPLATE_CONTENT_LIBRARY = "templates.content_library"

 TemplateType = Literal[
    "label",
@@ -17,6 +18,7 @@ TemplateType = Literal[
    "form_letter",
    "list_layout",
    "email",
+    "content_fragment",
    "generic",
 ]
 TemplateOutputFormat = Literal["html", "text"]
@@ -79,6 +81,10 @@ class TemplateRevisionRef:
    locale: str
    required_fields: tuple[TemplateFieldRequirement, ...]
    output_profiles: tuple[TemplateOutputProfile, ...]
+    content_text: str | None = None
+    content_html: str | None = None
+    layout: Mapping[str, object] = field(default_factory=dict)
+    metadata: Mapping[str, object] = field(default_factory=dict)
    published_at: datetime | None = None
    provenance: Mapping[str, object] = field(default_factory=dict)

@@ -166,6 +172,23 @@ class TemplateRenderResult:
    payload: bytes | None = None


+@dataclass(frozen=True, slots=True)
+class TemplateContentDraftRequest:
+    """Provider-neutral request for a reusable text/HTML content draft."""
+
+    name: str
+    template_type: TemplateType
+    usages: tuple[str, ...]
+    content_text: str | None = None
+    content_html: str | None = None
+    description: str | None = None
+    locale: str = "de"
+    scope_type: Literal["tenant", "group", "user"] = "tenant"
+    scope_id: str | None = None
+    metadata: Mapping[str, object] = field(default_factory=dict)
+    required_fields: tuple[TemplateFieldRequirement, ...] = ()
+
+
@runtime_checkable
 class TemplateCatalogProvider(Protocol):
    def list_templates(
@@ -213,13 +236,29 @@ class TemplateRendererProvider(Protocol):
    ) -> TemplateRenderResult: ...


+@runtime_checkable
+class TemplateContentLibraryProvider(Protocol):
+    """Create reusable content drafts while Templates retains ownership."""
+
+    def create_content_draft(
+        self,
+        session: object,
+        principal: object,
+        *,
+        request: TemplateContentDraftRequest,
+    ) -> TemplateRef: ...
+
+
 __all__ = [
    "CAPABILITY_TEMPLATE_CATALOG",
+    "CAPABILITY_TEMPLATE_CONTENT_LIBRARY",
    "CAPABILITY_TEMPLATE_RENDERER",
    "TemplateArtifactRef",
    "TemplateCatalogProvider",
    "TemplateCompatibility",
    "TemplateCompatibilityError",
+    "TemplateContentDraftRequest",
+    "TemplateContentLibraryProvider",
    "TemplateContractError",
    "TemplateFieldRequirement",
    "TemplateNotFoundError",
@@ -0,0 +1,182 @@
+from __future__ import annotations
+
+from contextvars import ContextVar, Token
+from dataclasses import dataclass, field
+from datetime import UTC, datetime
+from typing import Literal
+
+
+TemporalValidityMode = Literal["current", "at", "all"]
+VALIDITY_MODES = frozenset({"current", "at", "all"})
+
+VALIDITY_MODE_HEADER = "X-Govoplan-Validity-Mode"
+VALID_AT_HEADER = "X-Govoplan-Valid-At"
+RECORDED_AT_HEADER = "X-Govoplan-Recorded-At"
+TEMPORAL_EVALUATED_AT_HEADER = "X-Govoplan-Temporal-Evaluated-At"
+TEMPORAL_VARY_HEADERS = (
+    VALIDITY_MODE_HEADER,
+    VALID_AT_HEADER,
+    RECORDED_AT_HEADER,
+)
+
+
+class TemporalContextError(ValueError):
+    pass
+
+
+@dataclass(frozen=True, slots=True)
+class TemporalDataContext:
+    """Bitemporal read context.
+
+    Valid time answers when a fact applies. Recorded time answers which version
+    of that fact was known to the system. Authorization remains outside this
+    context and is always evaluated under the current security state.
+    """
+
+    validity_mode: TemporalValidityMode = "current"
+    valid_at: datetime | None = None
+    recorded_at: datetime | None = None
+    evaluated_at: datetime = field(default_factory=lambda: datetime.now(UTC))
+
+    def __post_init__(self) -> None:
+        if self.validity_mode not in VALIDITY_MODES:
+            raise TemporalContextError(
+                f"Unsupported temporal validity mode: {self.validity_mode!r}."
+            )
+        for name in ("valid_at", "recorded_at", "evaluated_at"):
+            value = getattr(self, name)
+            if value is not None and value.tzinfo is None:
+                raise TemporalContextError(f"Temporal {name} must include a timezone.")
+        if self.validity_mode == "at" and self.valid_at is None:
+            raise TemporalContextError("Validity mode 'at' requires valid_at.")
+        if self.validity_mode != "at" and self.valid_at is not None:
+            raise TemporalContextError(
+                "valid_at is only permitted when validity mode is 'at'."
+            )
+
+    @property
+    def validity_instant(self) -> datetime | None:
+        if self.validity_mode == "all":
+            return None
+        if self.validity_mode == "at":
+            return self.valid_at
+        return self.evaluated_at
+
+    @property
+    def is_default(self) -> bool:
+        return self.validity_mode == "current" and self.recorded_at is None
+
+    def to_dict(self) -> dict[str, str | None]:
+        return {
+            "validity_mode": self.validity_mode,
+            "valid_at": _datetime_text(self.valid_at),
+            "recorded_at": _datetime_text(self.recorded_at),
+            "evaluated_at": _datetime_text(self.evaluated_at),
+        }
+
+
+_temporal_context: ContextVar[TemporalDataContext | None] = ContextVar(
+    "govoplan_temporal_data_context",
+    default=None,
+)
+
+
+def parse_temporal_data_context(
+    *,
+    validity_mode: str | None = None,
+    valid_at: str | None = None,
+    recorded_at: str | None = None,
+    evaluated_at: datetime | None = None,
+) -> TemporalDataContext:
+    clean_mode = (validity_mode or "current").strip().lower()
+    if clean_mode not in VALIDITY_MODES:
+        raise TemporalContextError(
+            "Temporal validity mode must be one of: current, at, all."
+        )
+    return TemporalDataContext(
+        validity_mode=clean_mode,  # type: ignore[arg-type]
+        valid_at=_parse_datetime(valid_at, "valid_at"),
+        recorded_at=_parse_datetime(recorded_at, "recorded_at"),
+        evaluated_at=evaluated_at or datetime.now(UTC),
+    )
+
+
+def current_temporal_data_context() -> TemporalDataContext:
+    return _temporal_context.get() or TemporalDataContext()
+
+
+def bind_temporal_data_context(
+    context: TemporalDataContext,
+) -> Token[TemporalDataContext | None]:
+    return _temporal_context.set(context)
+
+
+def reset_temporal_data_context(token: Token[TemporalDataContext | None]) -> None:
+    _temporal_context.reset(token)
+
+
+def temporal_revision_matches(
+    context: TemporalDataContext,
+    *,
+    valid_from: datetime | None = None,
+    valid_to: datetime | None = None,
+    revision_recorded_at: datetime | None = None,
+    superseded_at: datetime | None = None,
+) -> bool:
+    cutoff = context.recorded_at
+    if cutoff is None:
+        if superseded_at is not None:
+            return False
+    else:
+        if revision_recorded_at is None or revision_recorded_at > cutoff:
+            return False
+        if superseded_at is not None and superseded_at <= cutoff:
+            return False
+
+    instant = context.validity_instant
+    if instant is None:
+        return True
+    return (valid_from is None or valid_from <= instant) and (
+        valid_to is None or valid_to > instant
+    )
+
+
+def _parse_datetime(value: str | None, name: str) -> datetime | None:
+    clean = str(value or "").strip()
+    if not clean:
+        return None
+    if len(clean) > 64:
+        raise TemporalContextError(f"Temporal {name} is too long.")
+    normalized = f"{clean[:-1]}+00:00" if clean.endswith(("Z", "z")) else clean
+    try:
+        parsed = datetime.fromisoformat(normalized)
+    except ValueError as exc:
+        raise TemporalContextError(
+            f"Temporal {name} must be an ISO 8601 timestamp."
+        ) from exc
+    if parsed.tzinfo is None:
+        raise TemporalContextError(f"Temporal {name} must include a timezone.")
+    return parsed.astimezone(UTC)
+
+
+def _datetime_text(value: datetime | None) -> str | None:
+    if value is None:
+        return None
+    return value.astimezone(UTC).isoformat().replace("+00:00", "Z")
+
+
+__all__ = [
+    "RECORDED_AT_HEADER",
+    "TEMPORAL_EVALUATED_AT_HEADER",
+    "TEMPORAL_VARY_HEADERS",
+    "VALIDITY_MODE_HEADER",
+    "VALID_AT_HEADER",
+    "TemporalContextError",
+    "TemporalDataContext",
+    "TemporalValidityMode",
+    "bind_temporal_data_context",
+    "current_temporal_data_context",
+    "parse_temporal_data_context",
+    "reset_temporal_data_context",
+    "temporal_revision_matches",
+]
@@ -2,8 +2,8 @@ from __future__ import annotations

 import re
 from collections.abc import Iterable
-from dataclasses import dataclass
-from typing import Literal, Protocol, runtime_checkable
+from dataclasses import dataclass, field
+from typing import Literal, Mapping, Protocol, runtime_checkable


 VIEWS_MODULE_ID = "views"
@@ -17,6 +17,8 @@ ViewSurfaceKind = Literal[
    "section",
    "action",
    "selector",
+    "product_area",
+    "quick_access",
 ]

 _SURFACE_ID_RE = re.compile(r"^[a-z][a-z0-9_.-]{2,159}$")
@@ -42,6 +44,7 @@ class EffectiveView:
    revision_id: str | None
    name: str | None
    visible_surface_ids: frozenset[str]
+    presentation: Mapping[str, object] = field(default_factory=dict)
    locked: bool = False
    projection_active: bool = False
    provenance: tuple[dict[str, object], ...] = ()
@@ -73,7 +73,7 @@ def bootstrap_dev_data(
 ) -> BootstrapResult:
    tenant = session.query(Tenant).filter(Tenant.slug == tenant_slug).one_or_none()
    if tenant is None:
-        tenant = Tenant(slug=tenant_slug, name="Default Tenant", default_locale="en", settings={})
+        tenant = Tenant(slug=tenant_slug, name="Default Tenant", default_locale="de", settings={})
        session.add(tenant)
        session.flush()

@@ -685,7 +685,10 @@ def configured_migration_heads(
        manifest_factories=manifest_factories,
        migration_track=migration_track,
    )
-    return tuple(sorted(ScriptDirectory.from_config(config).get_heads()))
+    scripts = ScriptDirectory.from_config(config)
+    return tuple(
+        sorted(revision.revision for revision in scripts.get_revisions("heads"))
+    )


 def database_is_at_configured_heads(
@@ -0,0 +1,74 @@
+from __future__ import annotations
+
+from typing import Any
+
+from sqlalchemy import or_
+
+from govoplan_core.core.temporal import (
+    TemporalContextError,
+    TemporalDataContext,
+    current_temporal_data_context,
+)
+
+
+def apply_temporal_revision_filter(
+    query: Any,
+    model: type[Any],
+    *,
+    context: TemporalDataContext | None = None,
+    valid_from: str | None = "valid_from",
+    valid_to: str | None = "valid_to",
+    recorded_at: str | None = "recorded_at",
+    superseded_at: str | None = "superseded_at",
+) -> Any:
+    """Apply latest/as-recorded and valid-time clauses to a revision query."""
+
+    resolved = context or current_temporal_data_context()
+    clauses: list[Any] = []
+
+    superseded_column = _optional_column(model, superseded_at)
+    recorded_column = _optional_column(model, recorded_at)
+    if resolved.recorded_at is None:
+        if superseded_column is not None:
+            clauses.append(superseded_column.is_(None))
+    else:
+        if recorded_column is None or superseded_column is None:
+            raise TemporalContextError(
+                f"{model.__name__} does not expose recorded/superseded revision time."
+            )
+        clauses.extend(
+            (
+                recorded_column <= resolved.recorded_at,
+                or_(
+                    superseded_column.is_(None),
+                    superseded_column > resolved.recorded_at,
+                ),
+            )
+        )
+
+    instant = resolved.validity_instant
+    if instant is not None:
+        valid_from_column = _optional_column(model, valid_from)
+        valid_to_column = _optional_column(model, valid_to)
+        if valid_from_column is not None:
+            clauses.append(
+                or_(valid_from_column.is_(None), valid_from_column <= instant)
+            )
+        if valid_to_column is not None:
+            clauses.append(or_(valid_to_column.is_(None), valid_to_column > instant))
+
+    return query.filter(*clauses) if clauses else query
+
+
+def _optional_column(model: type[Any], name: str | None) -> Any | None:
+    if name is None:
+        return None
+    column = getattr(model, name, None)
+    if column is None:
+        raise TemporalContextError(
+            f"{model.__name__} has no temporal column named {name!r}."
+        )
+    return column
+
+
+__all__ = ["apply_temporal_revision_filter"]
@@ -4,10 +4,12 @@ import re
 from typing import Any, Iterable

 I18N_SETTINGS_KEY = "i18n"
+REFERENCE_LANGUAGE_CODE = "de"
+SOURCE_LANGUAGE_CODE = "en"

 DEFAULT_LANGUAGE_PACKAGES: tuple[dict[str, str], ...] = (
-    {"code": "en", "label": "English", "native_label": "English"},
    {"code": "de", "label": "German", "native_label": "Deutsch"},
+    {"code": "en", "label": "English", "native_label": "English"},
 )


@@ -66,7 +68,7 @@ def normalize_enabled_language_codes(
    available_languages: Iterable[dict[str, Any]],
    *,
    default_locale: object = None,
-    fallback_codes: Iterable[str] = ("en", "de"),
+    fallback_codes: Iterable[str] = (REFERENCE_LANGUAGE_CODE, SOURCE_LANGUAGE_CODE),
 ) -> list[str]:
    available_codes = [normalize_language_code(item.get("code")) for item in available_languages if isinstance(item, dict)]
    available = {code for code in available_codes if code}
@@ -88,8 +90,10 @@ def normalize_enabled_language_codes(

    if enabled:
        return enabled
-    if "en" in available:
-        return ["en"]
+    if REFERENCE_LANGUAGE_CODE in available:
+        return [REFERENCE_LANGUAGE_CODE]
+    if SOURCE_LANGUAGE_CODE in available:
+        return [SOURCE_LANGUAGE_CODE]
    return available_codes[:1]


@@ -126,7 +130,7 @@ def preferred_language_code(user_settings: dict[str, Any] | None, allowed_codes:
    default = resolve_language_code(default_locale, enabled)
    if default:
        return default
-    return enabled[0] if enabled else "en"
+    return enabled[0] if enabled else REFERENCE_LANGUAGE_CODE


 def update_i18n_settings(settings: dict[str, Any] | None, **values: Any) -> dict[str, Any]:
@@ -141,10 +145,13 @@ def system_i18n_payload(settings_item: Any | None) -> dict[str, object]:
    settings = getattr(settings_item, "settings", None)
    packages = system_language_packages(settings)
    available_codes = [item["code"] for item in packages]
-    default_language = resolve_language_code(getattr(settings_item, "default_locale", None), available_codes) or "en"
+    default_language = (
+        resolve_language_code(getattr(settings_item, "default_locale", None), available_codes)
+        or REFERENCE_LANGUAGE_CODE
+    )
    enabled = system_enabled_language_codes(settings, default_locale=default_language)
    if default_language not in enabled:
-        default_language = enabled[0] if enabled else "en"
+        default_language = enabled[0] if enabled else REFERENCE_LANGUAGE_CODE
    return {
        "available_languages": packages,
        "enabled_languages": enabled,
@@ -1,3 +1,8 @@
-from govoplan_core.mail.config import ImapConfig, SmtpConfig, TransportSecurity
+from govoplan_core.mail.config import (
+    ImapConfig,
+    ImapFolderMappings,
+    SmtpConfig,
+    TransportSecurity,
+)

-__all__ = ["ImapConfig", "SmtpConfig", "TransportSecurity"]
+__all__ = ["ImapConfig", "ImapFolderMappings", "SmtpConfig", "TransportSecurity"]
@@ -3,7 +3,7 @@ from __future__ import annotations
 from enum import StrEnum
 from typing import Any

-from pydantic import BaseModel, ConfigDict, Field, model_validator
+from pydantic import BaseModel, ConfigDict, Field, field_validator, model_validator


 class StrictModel(BaseModel):
@@ -34,21 +34,61 @@ class SmtpServerConfig(StrictModel):
        return self


+class ImapFolderMappings(StrictModel):
+    """Profile-level names for the standard IMAP mailbox roles."""
+
+    inbox: str | None = None
+    sent: str | None = None
+    drafts: str | None = None
+    trash: str | None = None
+    archive: str | None = None
+    junk: str | None = None
+
+    @field_validator("*", mode="before")
+    @classmethod
+    def normalize_folder_name(cls, value: Any) -> Any:
+        if value is None:
+            return None
+        normalized = str(value).strip()
+        return normalized or None
+
+
 class ImapServerConfig(StrictModel):
    host: str | None = None
    port: int | None = Field(default=None, ge=1, le=65535)
    security: TransportSecurity = TransportSecurity.TLS
    sent_folder: str = "auto"
+    folder_mappings: ImapFolderMappings | None = None
    timeout_seconds: int = Field(default=30, ge=1)

    @model_validator(mode="before")
    @classmethod
    def discard_legacy_enabled(cls, value: Any) -> Any:
-        if isinstance(value, dict) and "enabled" in value:
-            data = dict(value)
-            data.pop("enabled", None)
-            return data
-        return value
+        if not isinstance(value, dict):
+            return value
+        data = dict(value)
+        data.pop("enabled", None)
+        mappings_value = data.get("folder_mappings")
+        mappings = (
+            mappings_value.model_dump(exclude_none=True)
+            if isinstance(mappings_value, ImapFolderMappings)
+            else dict(mappings_value)
+            if isinstance(mappings_value, dict)
+            else {}
+        )
+        mapped_sent = str(mappings.get("sent") or "").strip()
+        legacy_sent = str(data.get("sent_folder") or "").strip()
+        if mapped_sent:
+            # The typed mapping is canonical when both new and legacy callers
+            # provide a Sent value. Keep the legacy field synchronized for
+            # existing Campaign append consumers.
+            data["sent_folder"] = mapped_sent
+        elif legacy_sent and legacy_sent != "auto":
+            data["sent_folder"] = legacy_sent
+            mappings["sent"] = legacy_sent
+        if mappings:
+            data["folder_mappings"] = mappings
+        return data

    @model_validator(mode="after")
    def apply_default_port(self) -> "ImapServerConfig":
@@ -0,0 +1,753 @@
+from __future__ import annotations
+
+import hashlib
+import json
+import uuid
+from collections import defaultdict
+from collections.abc import Iterable, Mapping, Sequence
+from datetime import datetime, timezone
+from typing import Any
+
+from sqlalchemy import DateTime, Index, Integer, JSON, String, Text
+from sqlalchemy.orm import Mapped, Session, mapped_column
+
+from govoplan_core.core.concurrency import RevisionConflictError, strong_resource_etag
+from govoplan_core.core.dsar import (
+    DsarErasureActionRef,
+    DsarExecutionResultRef,
+    DsarProvider,
+    DsarRecordRef,
+    DsarRequestKind,
+    DsarSubjectRef,
+    dsar_provider_names,
+)
+from govoplan_core.db.base import Base, TimestampMixin
+
+
+MAX_RECORDS_PER_PROVIDER = 10_000
+MAX_PROVIDER_RESULT_BYTES = 10 * 1024 * 1024
+
+
+class DataSubjectRequest(Base, TimestampMixin):
+    __tablename__ = "core_data_subject_requests"
+    __table_args__ = (
+        Index(
+            "ix_core_data_subject_requests_tenant_status",
+            "tenant_id",
+            "status",
+        ),
+    )
+
+    id: Mapped[str] = mapped_column(
+        String(36), primary_key=True, default=lambda: str(uuid.uuid4())
+    )
+    tenant_id: Mapped[str] = mapped_column(String(36), nullable=False, index=True)
+    reference: Mapped[str] = mapped_column(String(120), nullable=False)
+    request_kind: Mapped[str] = mapped_column(String(30), nullable=False)
+    status: Mapped[str] = mapped_column(
+        String(30), default="draft", nullable=False, index=True
+    )
+    subject: Mapped[dict[str, Any]] = mapped_column(JSON, default=dict, nullable=False)
+    purpose: Mapped[str] = mapped_column(String(1000), nullable=False)
+    legal_basis: Mapped[str | None] = mapped_column(String(1000), nullable=True)
+    due_at: Mapped[datetime | None] = mapped_column(
+        DateTime(timezone=True), nullable=True, index=True
+    )
+    requested_by_account_id: Mapped[str] = mapped_column(String(36), nullable=False)
+    search_result: Mapped[dict[str, Any]] = mapped_column(
+        JSON, default=dict, nullable=False
+    )
+    erasure_plan: Mapped[dict[str, Any]] = mapped_column(
+        JSON, default=dict, nullable=False
+    )
+    execution_result: Mapped[dict[str, Any]] = mapped_column(
+        JSON, default=dict, nullable=False
+    )
+    coverage: Mapped[dict[str, Any]] = mapped_column(JSON, default=dict, nullable=False)
+    evidence_sha256: Mapped[str | None] = mapped_column(String(64), nullable=True)
+    resource_revision: Mapped[int] = mapped_column(Integer, default=1, nullable=False)
+    completed_at: Mapped[datetime | None] = mapped_column(
+        DateTime(timezone=True), nullable=True
+    )
+    notes: Mapped[str | None] = mapped_column(Text, nullable=True)
+
+    @property
+    def strong_etag(self) -> str:
+        return strong_resource_etag(
+            "data_subject_request",
+            self.id,
+            self.resource_revision,
+        )
+
+
+def create_data_subject_request(
+    session: Session,
+    *,
+    tenant_id: str,
+    reference: str,
+    request_kind: DsarRequestKind,
+    subject: DsarSubjectRef,
+    purpose: str,
+    legal_basis: str | None,
+    due_at: datetime | None,
+    requested_by_account_id: str,
+    notes: str | None = None,
+) -> DataSubjectRequest:
+    if not subject.has_selector():
+        raise ValueError("At least one data-subject selector is required.")
+    row = DataSubjectRequest(
+        tenant_id=tenant_id,
+        reference=reference.strip(),
+        request_kind=request_kind,
+        subject=subject.to_dict(),
+        purpose=purpose.strip(),
+        legal_basis=(legal_basis or "").strip() or None,
+        due_at=due_at,
+        requested_by_account_id=requested_by_account_id,
+        notes=(notes or "").strip() or None,
+    )
+    session.add(row)
+    session.flush()
+    row.evidence_sha256 = _evidence_digest(row)
+    return row
+
+
+def get_data_subject_request(
+    session: Session,
+    *,
+    tenant_id: str,
+    request_id: str,
+    for_update: bool = False,
+) -> DataSubjectRequest:
+    query = session.query(DataSubjectRequest).filter(
+        DataSubjectRequest.id == request_id,
+        DataSubjectRequest.tenant_id == tenant_id,
+    )
+    if for_update:
+        query = query.with_for_update()
+    row = query.one_or_none()
+    if row is None or row.tenant_id != tenant_id:
+        raise LookupError("Data-subject request not found.")
+    return row
+
+
+def list_data_subject_requests(
+    session: Session,
+    *,
+    tenant_id: str,
+    limit: int = 200,
+) -> tuple[DataSubjectRequest, ...]:
+    return tuple(
+        session.query(DataSubjectRequest)
+        .filter(DataSubjectRequest.tenant_id == tenant_id)
+        .order_by(
+            DataSubjectRequest.created_at.desc(),
+            DataSubjectRequest.id.desc(),
+        )
+        .limit(max(1, min(limit, 500)))
+        .all()
+    )
+
+
+def search_data_subject_request(
+    session: Session,
+    *,
+    registry: object,
+    row: DataSubjectRequest,
+    expected_revision: int,
+) -> DataSubjectRequest:
+    _assert_revision(row, expected_revision)
+    subject = _subject(row.subject)
+    records: list[dict[str, object]] = []
+    provider_runs: list[dict[str, object]] = []
+    providers, discovery = _providers(
+        registry,
+        session,
+        tenant_id=row.tenant_id,
+    )
+    for capability_name, provider in providers:
+        started_at = _now()
+        try:
+            with session.begin_nested():
+                provider_records = tuple(
+                    provider.search_subject(
+                        session,
+                        tenant_id=row.tenant_id,
+                        subject=subject,
+                    )
+                )
+                _validate_records(provider, provider_records)
+                if len(provider_records) > MAX_RECORDS_PER_PROVIDER:
+                    raise ValueError("DSAR provider result exceeds the record limit.")
+                encoded = _json_bytes([item.to_dict() for item in provider_records])
+                if len(encoded) > MAX_PROVIDER_RESULT_BYTES:
+                    raise ValueError("DSAR provider result exceeds the payload limit.")
+            records.extend(item.to_dict() for item in provider_records)
+            provider_runs.append(
+                {
+                    "capability": capability_name,
+                    "provider_id": provider.provider_id,
+                    "module_id": provider.module_id,
+                    "status": "complete",
+                    "record_count": len(provider_records),
+                    "started_at": started_at,
+                    "completed_at": _now(),
+                }
+            )
+        except Exception as exc:
+            provider_runs.append(
+                {
+                    "capability": capability_name,
+                    "provider_id": getattr(provider, "provider_id", capability_name),
+                    "module_id": getattr(provider, "module_id", "unknown"),
+                    "status": "failed",
+                    "record_count": 0,
+                    "error": _safe_error(exc),
+                    "started_at": started_at,
+                    "completed_at": _now(),
+                }
+            )
+    failures = sum(1 for item in provider_runs if item["status"] == "failed")
+    row.search_result = {
+        "schema": "govoplan.dsars.search.v1",
+        "searched_at": _now(),
+        "records": records,
+        "provider_runs": provider_runs,
+        "record_count": len(records),
+    }
+    row.coverage = discovery
+    row.erasure_plan = {}
+    row.execution_result = {}
+    row.status = "search_partial" if failures else "searched"
+    row.completed_at = None
+    _advance(row)
+    return row
+
+
+def plan_data_subject_erasure(
+    session: Session,
+    *,
+    registry: object,
+    row: DataSubjectRequest,
+    expected_revision: int,
+) -> DataSubjectRequest:
+    _assert_revision(row, expected_revision)
+    if not row.search_result.get("searched_at"):
+        raise ValueError("Run the data-subject search before planning erasure.")
+    if row.request_kind == "access":
+        raise ValueError("This request does not include erasure.")
+    subject = _subject(row.subject)
+    records = tuple(_record(item) for item in row.search_result.get("records", []))
+    by_provider: dict[str, list[DsarRecordRef]] = defaultdict(list)
+    for record in records:
+        by_provider[record.provider_id].append(record)
+    providers, discovery = _providers(
+        registry,
+        session,
+        tenant_id=row.tenant_id,
+    )
+    actions: list[DsarErasureActionRef] = []
+    provider_runs: list[dict[str, object]] = []
+    for capability_name, provider in providers:
+        started_at = _now()
+        try:
+            with session.begin_nested():
+                proposed = tuple(
+                    provider.plan_erasure(
+                        session,
+                        tenant_id=row.tenant_id,
+                        subject=subject,
+                        records=tuple(by_provider.get(provider.provider_id, ())),
+                    )
+                )
+                _validate_actions(provider, proposed)
+            actions.extend(proposed)
+            provider_runs.append(
+                {
+                    "capability": capability_name,
+                    "provider_id": provider.provider_id,
+                    "module_id": provider.module_id,
+                    "status": "complete",
+                    "action_count": len(proposed),
+                    "started_at": started_at,
+                    "completed_at": _now(),
+                }
+            )
+        except Exception as exc:
+            provider_runs.append(
+                {
+                    "capability": capability_name,
+                    "provider_id": getattr(provider, "provider_id", capability_name),
+                    "module_id": getattr(provider, "module_id", "unknown"),
+                    "status": "failed",
+                    "action_count": 0,
+                    "error": _safe_error(exc),
+                    "started_at": started_at,
+                    "completed_at": _now(),
+                }
+            )
+    existing_resources = {
+        (item.provider_id, item.resource_type, item.resource_id) for item in actions
+    }
+    for record in records:
+        key = (record.provider_id, record.resource_type, record.resource_id)
+        if not record.immutable_evidence or key in existing_resources:
+            continue
+        digest = hashlib.sha256("\0".join(key).encode("utf-8")).hexdigest()[:24]
+        actions.append(
+            DsarErasureActionRef(
+                action_id=f"retain:{digest}",
+                provider_id=record.provider_id,
+                module_id=record.module_id,
+                kind="retain",
+                resource_type=record.resource_type,
+                resource_id=record.resource_id,
+                title=f"Retain {record.title}",
+                rationale=(
+                    record.retention_reason
+                    or "Immutable institutional evidence must be retained."
+                ),
+                executable=False,
+            )
+        )
+    duplicate_ids = _duplicates(item.action_id for item in actions)
+    if duplicate_ids:
+        raise ValueError(
+            f"DSAR providers returned duplicate action ids: {', '.join(duplicate_ids)}"
+        )
+    failures = sum(1 for item in provider_runs if item["status"] == "failed")
+    row.erasure_plan = {
+        "schema": "govoplan.dsars.erasure-plan.v1",
+        "planned_at": _now(),
+        "actions": [item.to_dict() for item in actions],
+        "provider_runs": provider_runs,
+        "executable_count": sum(1 for item in actions if item.executable),
+        "retained_count": sum(1 for item in actions if item.kind == "retain"),
+    }
+    row.coverage = {**discovery, "plan_provider_runs": provider_runs}
+    row.execution_result = {}
+    row.status = "plan_partial" if failures else "plan_ready"
+    row.completed_at = None
+    _advance(row)
+    return row
+
+
+def execute_data_subject_erasure(
+    session: Session,
+    *,
+    registry: object,
+    row: DataSubjectRequest,
+    expected_revision: int,
+    action_ids: Sequence[str],
+) -> DataSubjectRequest:
+    _assert_revision(row, expected_revision)
+    raw_actions = row.erasure_plan.get("actions")
+    if not isinstance(raw_actions, list):
+        raise ValueError("Create an erasure plan before execution.")
+    actions_by_id = {
+        action.action_id: action for action in (_action(item) for item in raw_actions)
+    }
+    selected_ids = tuple(dict.fromkeys(str(item) for item in action_ids if str(item)))
+    if not selected_ids:
+        raise ValueError("Select at least one executable erasure action.")
+    missing = [item for item in selected_ids if item not in actions_by_id]
+    if missing:
+        raise ValueError("The erasure plan changed; refresh before executing it.")
+    selected = tuple(actions_by_id[item] for item in selected_ids)
+    blocked = [item.action_id for item in selected if not item.executable]
+    if blocked:
+        raise ValueError("Retained or review-only actions cannot be executed.")
+
+    providers, _discovery = _providers(
+        registry,
+        session,
+        tenant_id=row.tenant_id,
+    )
+    providers_by_id = {provider.provider_id: provider for _name, provider in providers}
+    grouped: dict[str, list[DsarErasureActionRef]] = defaultdict(list)
+    for action in selected:
+        grouped[action.provider_id].append(action)
+    previous = {
+        str(item.get("action_id")): item
+        for item in row.execution_result.get("results", [])
+        if isinstance(item, Mapping)
+        and item.get("status") in {"executed", "unchanged"}
+    }
+    results: list[dict[str, object]] = list(previous.values())
+    for provider_id, provider_actions in grouped.items():
+        provider = providers_by_id.get(provider_id)
+        if provider is None:
+            results.extend(
+                DsarExecutionResultRef(
+                    action_id=action.action_id,
+                    status="blocked",
+                    summary="The owning DSAR provider is not currently available.",
+                ).to_dict()
+                for action in provider_actions
+            )
+            continue
+        pending = tuple(
+            action for action in provider_actions if action.action_id not in previous
+        )
+        if not pending:
+            continue
+        try:
+            with session.begin_nested():
+                executed = tuple(
+                    provider.execute_erasure(
+                        session,
+                        tenant_id=row.tenant_id,
+                        subject=_subject(row.subject),
+                        actions=pending,
+                        request_id=row.id,
+                    )
+                )
+                _validate_execution_results(pending, executed)
+            results.extend(item.to_dict() for item in executed)
+        except Exception as exc:
+            results.extend(
+                DsarExecutionResultRef(
+                    action_id=action.action_id,
+                    status="failed",
+                    summary=_safe_error(exc),
+                ).to_dict()
+                for action in pending
+            )
+    result_by_id = {str(item["action_id"]): item for item in results}
+    all_executable = {
+        action.action_id for action in actions_by_id.values() if action.executable
+    }
+    successful = {
+        action_id
+        for action_id, item in result_by_id.items()
+        if item.get("status") in {"executed", "unchanged"}
+    }
+    failed = {
+        action_id
+        for action_id, item in result_by_id.items()
+        if item.get("status") in {"failed", "blocked"}
+    }
+    row.execution_result = {
+        "schema": "govoplan.dsars.execution.v1",
+        "executed_at": _now(),
+        "results": list(result_by_id.values()),
+        "successful_count": len(successful),
+        "failed_count": len(failed),
+    }
+    if all_executable.issubset(successful):
+        row.status = "completed"
+        row.completed_at = datetime.now(timezone.utc)
+    elif failed:
+        row.status = "execution_partial"
+        row.completed_at = None
+    else:
+        row.status = "execution_pending"
+        row.completed_at = None
+    _advance(row)
+    return row
+
+
+def data_subject_export(row: DataSubjectRequest) -> bytes:
+    payload: dict[str, object] = {
+        "schema": "govoplan.dsars.export.v1",
+        "generated_at": _now(),
+        "request": data_subject_request_dict(row, include_subject=True),
+        "search": row.search_result,
+        "erasure_plan": row.erasure_plan,
+        "execution": row.execution_result,
+        "coverage": row.coverage,
+        "limitations": [
+            "Only providers listed as complete contributed data.",
+            "Retained immutable evidence is exported with its stated retention reason.",
+            "An export does not itself erase or alter source data.",
+        ],
+    }
+    digest = hashlib.sha256(_json_bytes(payload)).hexdigest()
+    payload["manifest_sha256"] = digest
+    return _json_bytes(payload, pretty=True)
+
+
+def data_subject_request_dict(
+    row: DataSubjectRequest,
+    *,
+    include_subject: bool,
+) -> dict[str, object]:
+    return {
+        "id": row.id,
+        "tenant_id": row.tenant_id,
+        "reference": row.reference,
+        "request_kind": row.request_kind,
+        "status": row.status,
+        "subject": dict(row.subject) if include_subject else {},
+        "purpose": row.purpose,
+        "legal_basis": row.legal_basis,
+        "due_at": row.due_at.isoformat() if row.due_at else None,
+        "requested_by_account_id": row.requested_by_account_id,
+        "record_count": int(row.search_result.get("record_count", 0)),
+        "executable_action_count": int(
+            row.erasure_plan.get("executable_count", 0)
+        ),
+        "coverage": dict(row.coverage),
+        "evidence_sha256": row.evidence_sha256,
+        "resource_revision": row.resource_revision,
+        "etag": row.strong_etag,
+        "created_at": row.created_at.isoformat(),
+        "updated_at": row.updated_at.isoformat(),
+        "completed_at": row.completed_at.isoformat() if row.completed_at else None,
+        "notes": row.notes,
+    }
+
+
+def _providers(
+    registry: object,
+    session: Session,
+    *,
+    tenant_id: str,
+) -> tuple[tuple[tuple[str, DsarProvider], ...], dict[str, object]]:
+    values: list[tuple[str, DsarProvider]] = []
+    failures: list[dict[str, str]] = []
+    active_modules = _effective_module_ids(registry, session, tenant_id=tenant_id)
+    names = dsar_provider_names(registry)
+    active_names: list[str] = []
+    inactive_names: list[str] = []
+    for name in names:
+        owner = (
+            registry.capability_owner(name)
+            if hasattr(registry, "capability_owner")
+            else None
+        )
+        if owner and owner not in active_modules:
+            inactive_names.append(name)
+            continue
+        active_names.append(name)
+        try:
+            if hasattr(registry, "require_tenant_capability"):
+                candidate = registry.require_tenant_capability(
+                    name,
+                    session,
+                    tenant_id=tenant_id,
+                    work_state="interactive",
+                )
+            else:
+                candidate = registry.require_capability(name)
+            if not isinstance(candidate, DsarProvider):
+                raise TypeError("Capability does not implement DsarProvider.")
+            values.append((name, candidate))
+        except Exception as exc:
+            failures.append({"capability": name, "error": _safe_error(exc)})
+    covered_modules = sorted({provider.module_id for _name, provider in values})
+    return tuple(values), {
+        "provider_capabilities": active_names,
+        "inactive_provider_capabilities": inactive_names,
+        "covered_modules": covered_modules,
+        "modules_without_provider": sorted(set(active_modules) - set(covered_modules)),
+        "provider_discovery_failures": failures,
+    }
+
+
+def _effective_module_ids(
+    registry: object,
+    session: Session,
+    *,
+    tenant_id: str,
+) -> list[str]:
+    resolver_factory = getattr(registry, "tenant_entitlement_resolver", None)
+    if callable(resolver_factory):
+        state = resolver_factory().resolve(session, tenant_id)
+        return sorted(str(item) for item in state.effective_modules)
+    if hasattr(registry, "manifests"):
+        return sorted(str(manifest.id) for manifest in registry.manifests())
+    return []
+
+
+def _subject(value: Mapping[str, object]) -> DsarSubjectRef:
+    raw_refs = value.get("external_references")
+    return DsarSubjectRef(
+        account_id=_optional_text(value.get("account_id")),
+        identity_id=_optional_text(value.get("identity_id")),
+        membership_id=_optional_text(value.get("membership_id")),
+        email=_optional_text(value.get("email")),
+        external_references={
+            str(key): str(item)
+            for key, item in (raw_refs.items() if isinstance(raw_refs, Mapping) else ())
+        },
+    )
+
+
+def _record(value: object) -> DsarRecordRef:
+    if not isinstance(value, Mapping):
+        raise ValueError("Stored DSAR record is invalid.")
+    observed_at = _parse_datetime(value.get("observed_at"))
+    data = value.get("data")
+    return DsarRecordRef(
+        provider_id=str(value.get("provider_id") or ""),
+        module_id=str(value.get("module_id") or ""),
+        resource_type=str(value.get("resource_type") or ""),
+        resource_id=str(value.get("resource_id") or ""),
+        category=str(value.get("category") or ""),
+        title=str(value.get("title") or ""),
+        data=dict(data) if isinstance(data, Mapping) else {},
+        observed_at=observed_at,
+        immutable_evidence=bool(value.get("immutable_evidence")),
+        retention_reason=_optional_text(value.get("retention_reason")),
+        source_path=_optional_text(value.get("source_path")),
+    )
+
+
+def _action(value: object) -> DsarErasureActionRef:
+    if not isinstance(value, Mapping):
+        raise ValueError("Stored DSAR action is invalid.")
+    metadata = value.get("metadata")
+    kind = str(value.get("kind") or "manual_review")
+    if kind not in {
+        "delete",
+        "anonymize",
+        "revoke",
+        "detach",
+        "retain",
+        "manual_review",
+    }:
+        raise ValueError("Stored DSAR action kind is invalid.")
+    return DsarErasureActionRef(
+        action_id=str(value.get("action_id") or ""),
+        provider_id=str(value.get("provider_id") or ""),
+        module_id=str(value.get("module_id") or ""),
+        kind=kind,  # type: ignore[arg-type]
+        resource_type=str(value.get("resource_type") or ""),
+        resource_id=str(value.get("resource_id") or ""),
+        title=str(value.get("title") or ""),
+        rationale=str(value.get("rationale") or ""),
+        executable=bool(value.get("executable")),
+        irreversible=bool(value.get("irreversible")),
+        metadata=dict(metadata) if isinstance(metadata, Mapping) else {},
+    )
+
+
+def _validate_records(
+    provider: DsarProvider,
+    records: Sequence[DsarRecordRef],
+) -> None:
+    for record in records:
+        if record.provider_id != provider.provider_id or record.module_id != provider.module_id:
+            raise ValueError("DSAR record ownership does not match its provider.")
+        if not record.resource_type or not record.resource_id or not record.title:
+            raise ValueError("DSAR records require resource identity and title.")
+
+
+def _validate_actions(
+    provider: DsarProvider,
+    actions: Sequence[DsarErasureActionRef],
+) -> None:
+    for action in actions:
+        if action.provider_id != provider.provider_id or action.module_id != provider.module_id:
+            raise ValueError("DSAR action ownership does not match its provider.")
+        if not action.action_id or not action.resource_type or not action.resource_id:
+            raise ValueError("DSAR actions require stable identities.")
+        if action.kind in {"retain", "manual_review"} and action.executable:
+            raise ValueError("Retain and manual-review actions cannot be executable.")
+
+
+def _validate_execution_results(
+    actions: Sequence[DsarErasureActionRef],
+    results: Sequence[DsarExecutionResultRef],
+) -> None:
+    expected = {action.action_id for action in actions}
+    returned = {result.action_id for result in results}
+    if expected != returned or len(returned) != len(results):
+        raise ValueError("DSAR provider did not return one result per action.")
+
+
+def _assert_revision(row: DataSubjectRequest, expected_revision: int) -> None:
+    if row.resource_revision != expected_revision:
+        raise RevisionConflictError(
+            resource_type="data_subject_request",
+            resource_id=row.id,
+            current_revision=row.resource_revision,
+            submitted_base_revision=expected_revision,
+            current_etag=row.strong_etag,
+            refresh_path=f"/api/v1/admin/privacy/data-subject-requests/{row.id}",
+        )
+
+
+def _advance(row: DataSubjectRequest) -> None:
+    row.resource_revision += 1
+    row.evidence_sha256 = _evidence_digest(row)
+
+
+def _evidence_digest(row: DataSubjectRequest) -> str:
+    return hashlib.sha256(
+        _json_bytes(
+            {
+                "id": row.id,
+                "tenant_id": row.tenant_id,
+                "reference": row.reference,
+                "request_kind": row.request_kind,
+                "status": row.status,
+                "subject": row.subject,
+                "search_result": row.search_result,
+                "erasure_plan": row.erasure_plan,
+                "execution_result": row.execution_result,
+                "coverage": row.coverage,
+                "resource_revision": row.resource_revision,
+            }
+        )
+    ).hexdigest()
+
+
+def _duplicates(values: Iterable[str]) -> tuple[str, ...]:
+    seen: set[str] = set()
+    duplicate: set[str] = set()
+    for value in values:
+        if value in seen:
+            duplicate.add(value)
+        seen.add(value)
+    return tuple(sorted(duplicate))
+
+
+def _json_bytes(value: object, *, pretty: bool = False) -> bytes:
+    return json.dumps(
+        value,
+        ensure_ascii=False,
+        sort_keys=True,
+        indent=2 if pretty else None,
+        separators=None if pretty else (",", ":"),
+        default=str,
+    ).encode("utf-8")
+
+
+def _safe_error(exc: Exception) -> str:
+    text = " ".join(str(exc).split())
+    return (text or exc.__class__.__name__)[:1000]
+
+
+def _optional_text(value: object | None) -> str | None:
+    text = str(value or "").strip()
+    return text or None
+
+
+def _parse_datetime(value: object | None) -> datetime | None:
+    if isinstance(value, datetime):
+        return value
+    if isinstance(value, str) and value:
+        try:
+            return datetime.fromisoformat(value)
+        except ValueError:
+            return None
+    return None
+
+
+def _now() -> str:
+    return datetime.now(timezone.utc).isoformat()
+
+
+__all__ = [
+    "DataSubjectRequest",
+    "create_data_subject_request",
+    "data_subject_export",
+    "data_subject_request_dict",
+    "execute_data_subject_erasure",
+    "get_data_subject_request",
+    "list_data_subject_requests",
+    "plan_data_subject_erasure",
+    "search_data_subject_request",
+]
@@ -0,0 +1,13 @@
+{
+  "generated_at": "2026-07-11T15:18:35.649400Z",
+  "keyring_version": "1",
+  "keys": [
+    {
+      "key_id": "release-key-1",
+      "not_before": "2026-07-11T00:00:00Z",
+      "public_key": "jOXIlZXytoNJCH8tsmrYRklg6ShpjGXRY0uV3jApRiA=",
+      "status": "active"
+    }
+  ],
+  "purpose": "govoplan module package catalog signatures"
+}
@@ -37,6 +37,7 @@ LEGACY_TO_MODULE_SCOPES: dict[str, str] = {
    "system:access:read": "access:system_role:read",
    "system:access:assign": "access:system_role:assign",
    "system:audit:read": "access:audit:read",
+    "system:audit:evidence:export": "audit:system_evidence:export",
    "system:settings:read": "access:system_setting:read",
    "system:settings:write": "access:system_setting:write",
    "system:maintenance:access": "access:maintenance:access",
@@ -10,6 +10,7 @@ from govoplan_core.server.fastapi import create_govoplan_app
 from govoplan_core.server.platform import create_platform_router
 from govoplan_core.server.bootstrap import create_bootstrap_router
 from govoplan_core.server.credentials import router as credential_router
+from govoplan_core.server.dsar import router as dsar_router
 from govoplan_core.server.ownership import router as ownership_router
 from govoplan_core.server.registry import available_module_manifests, build_platform_registry
 from govoplan_core.server.route_validation import validate_no_route_collisions
@@ -72,6 +73,7 @@ def _server_api_router(server_config: GovoplanServerConfig, registry) -> APIRout
    api_router.include_router(create_platform_router(settings=server_config.settings))
    api_router.include_router(create_bootstrap_router(server_config.settings))
    api_router.include_router(credential_router)
+    api_router.include_router(dsar_router)
    api_router.include_router(ownership_router)
    for router in server_config.post_module_routers:
        api_router.include_router(router)
@@ -7,7 +7,15 @@ from fastapi import Request
 from starlette.responses import Response

 JSON_CACHE_CONTROL = "private, no-cache"
-JSON_ETAG_VARY_HEADERS = ("Authorization", "Cookie", "X-API-Key", "Accept-Language")
+JSON_ETAG_VARY_HEADERS = (
+    "Authorization",
+    "Cookie",
+    "X-API-Key",
+    "Accept-Language",
+    "X-Govoplan-Validity-Mode",
+    "X-Govoplan-Valid-At",
+    "X-Govoplan-Recorded-At",
+)


 async def conditional_json_get_middleware(
@@ -1,6 +1,7 @@
 from __future__ import annotations

 from contextlib import asynccontextmanager
+from importlib.metadata import PackageNotFoundError, version

 from fastapi import Depends, FastAPI
 from fastapi import HTTPException, status
@@ -20,6 +21,13 @@ from govoplan_core.core.runtime_coordination import (
 from govoplan_core.settings import Settings, settings


+def _core_distribution_version() -> str:
+    try:
+        return version("govoplan-core")
+    except PackageNotFoundError:
+        return "development"
+
+
 def _dev_bootstrap_needs_create_all(database_url: str) -> bool:
    try:
        return make_url(database_url).get_backend_name() == "sqlite"
@@ -61,7 +69,7 @@ async def lifespan(app: FastAPI):
    )
    runtime_agent = RuntimeNodeAgent(
        settings=settings,
-        software_version=app.version,
+        software_version=_core_distribution_version(),
        module_ids=module_ids,
        metadata={"process": "api"},
        identity=configured_identity
@@ -93,7 +101,7 @@ def register_health_details(
    ):
        app.state.govoplan_runtime_identity = runtime_identity(
            active_settings,
-            software_version=app.version,
+            software_version=_core_distribution_version(),
            module_ids=module_ids,
        )
    bind_process_runtime_identity(app.state.govoplan_runtime_identity)
@@ -0,0 +1,406 @@
+from __future__ import annotations
+
+import re
+from datetime import datetime
+from typing import Any, Literal
+
+from fastapi import APIRouter, Depends, Header, HTTPException, Query, Request, Response, status
+from pydantic import BaseModel, Field, field_validator
+from sqlalchemy.orm import Session
+
+from govoplan_core.audit.logging import audit_event
+from govoplan_core.auth import ApiPrincipal, get_api_principal, has_scope
+from govoplan_core.core.concurrency import (
+    ConcurrencyError,
+    MissingPreconditionError,
+    RevisionConflictError,
+    assert_revision_precondition,
+)
+from govoplan_core.core.dsar import DsarSubjectRef
+from govoplan_core.db.session import get_session
+from govoplan_core.privacy.dsar_workflow import (
+    DataSubjectRequest,
+    create_data_subject_request,
+    data_subject_export,
+    data_subject_request_dict,
+    execute_data_subject_erasure,
+    get_data_subject_request,
+    list_data_subject_requests,
+    plan_data_subject_erasure,
+    search_data_subject_request,
+)
+
+
+READ_SCOPE = "access:privacy:read"
+MANAGE_SCOPE = "access:privacy:manage"
+EXPORT_SCOPE = "access:privacy:export"
+ERASE_SCOPE = "access:privacy:erase"
+
+
+class DataSubjectSelectorRequest(BaseModel):
+    account_id: str | None = Field(default=None, max_length=36)
+    identity_id: str | None = Field(default=None, max_length=36)
+    membership_id: str | None = Field(default=None, max_length=36)
+    email: str | None = Field(default=None, max_length=320)
+    external_references: dict[str, str] = Field(default_factory=dict)
+
+    @field_validator("external_references")
+    @classmethod
+    def validate_external_references(
+        cls,
+        value: dict[str, str],
+    ) -> dict[str, str]:
+        if len(value) > 50:
+            raise ValueError("At most 50 external subject references are allowed.")
+        normalized: dict[str, str] = {}
+        for raw_key, raw_value in value.items():
+            key = str(raw_key).strip()
+            item = str(raw_value).strip()
+            if not key or not item:
+                continue
+            if len(key) > 120 or len(item) > 500:
+                raise ValueError(
+                    "External subject-reference namespaces are limited to 120 "
+                    "characters and values to 500 characters."
+                )
+            normalized[key] = item
+        return normalized
+
+
+class DataSubjectRequestCreate(BaseModel):
+    reference: str = Field(min_length=1, max_length=120)
+    request_kind: Literal["access", "erasure", "access_and_erasure"]
+    subject: DataSubjectSelectorRequest
+    purpose: str = Field(min_length=1, max_length=1000)
+    legal_basis: str | None = Field(default=None, max_length=1000)
+    due_at: datetime | None = None
+    notes: str | None = Field(default=None, max_length=10_000)
+
+
+class RevisionMutationRequest(BaseModel):
+    base_revision: int = Field(ge=1)
+
+
+class DataSubjectExecutionRequest(RevisionMutationRequest):
+    action_ids: list[str] = Field(min_length=1, max_length=10_000)
+    confirmation: str = Field(min_length=1, max_length=100)
+
+
+class DataSubjectRequestResponse(BaseModel):
+    request: dict[str, Any]
+    search: dict[str, Any] = Field(default_factory=dict)
+    erasure_plan: dict[str, Any] = Field(default_factory=dict)
+    execution: dict[str, Any] = Field(default_factory=dict)
+
+
+class DataSubjectRequestListResponse(BaseModel):
+    items: list[dict[str, Any]] = Field(default_factory=list)
+
+
+router = APIRouter(
+    prefix="/admin/privacy/data-subject-requests",
+    tags=["data-subject-requests"],
+)
+
+
+@router.get("", response_model=DataSubjectRequestListResponse)
+def list_requests(
+    limit: int = Query(default=200, ge=1, le=500),
+    principal: ApiPrincipal = Depends(get_api_principal),
+    session: Session = Depends(get_session),
+) -> DataSubjectRequestListResponse:
+    _require(principal, READ_SCOPE)
+    rows = list_data_subject_requests(
+        session,
+        tenant_id=principal.tenant_id,
+        limit=limit,
+    )
+    return DataSubjectRequestListResponse(
+        items=[
+            data_subject_request_dict(row, include_subject=True)
+            for row in rows
+        ]
+    )
+
+
+@router.post(
+    "",
+    response_model=DataSubjectRequestResponse,
+    status_code=status.HTTP_201_CREATED,
+)
+def create_request(
+    payload: DataSubjectRequestCreate,
+    principal: ApiPrincipal = Depends(get_api_principal),
+    session: Session = Depends(get_session),
+) -> DataSubjectRequestResponse:
+    _require(principal, MANAGE_SCOPE)
+    try:
+        row = create_data_subject_request(
+            session,
+            tenant_id=principal.tenant_id,
+            reference=payload.reference,
+            request_kind=payload.request_kind,
+            subject=_subject(payload.subject),
+            purpose=payload.purpose,
+            legal_basis=payload.legal_basis,
+            due_at=payload.due_at,
+            requested_by_account_id=principal.account_id,
+            notes=payload.notes,
+        )
+        _audit(session, principal, row, "privacy.dsar.created")
+        session.commit()
+        session.refresh(row)
+        return _detail(row)
+    except ValueError as exc:
+        session.rollback()
+        raise HTTPException(status_code=400, detail=str(exc)) from exc
+
+
+@router.get("/{request_id}", response_model=DataSubjectRequestResponse)
+def get_request(
+    request_id: str,
+    principal: ApiPrincipal = Depends(get_api_principal),
+    session: Session = Depends(get_session),
+) -> DataSubjectRequestResponse:
+    _require(principal, READ_SCOPE)
+    return _detail(_row(session, principal, request_id))
+
+
+@router.post("/{request_id}/search", response_model=DataSubjectRequestResponse)
+def search_request(
+    request_id: str,
+    payload: RevisionMutationRequest,
+    request: Request,
+    if_match: str | None = Header(default=None, alias="If-Match"),
+    principal: ApiPrincipal = Depends(get_api_principal),
+    session: Session = Depends(get_session),
+) -> DataSubjectRequestResponse:
+    _require(principal, MANAGE_SCOPE)
+    return _mutate(
+        session,
+        principal,
+        request_id,
+        payload.base_revision,
+        if_match,
+        lambda row: search_data_subject_request(
+            session,
+            registry=_registry(request),
+            row=row,
+            expected_revision=payload.base_revision,
+        ),
+        "privacy.dsar.searched",
+    )
+
+
+@router.post("/{request_id}/erasure-plan", response_model=DataSubjectRequestResponse)
+def plan_erasure(
+    request_id: str,
+    payload: RevisionMutationRequest,
+    request: Request,
+    if_match: str | None = Header(default=None, alias="If-Match"),
+    principal: ApiPrincipal = Depends(get_api_principal),
+    session: Session = Depends(get_session),
+) -> DataSubjectRequestResponse:
+    _require(principal, MANAGE_SCOPE)
+    return _mutate(
+        session,
+        principal,
+        request_id,
+        payload.base_revision,
+        if_match,
+        lambda row: plan_data_subject_erasure(
+            session,
+            registry=_registry(request),
+            row=row,
+            expected_revision=payload.base_revision,
+        ),
+        "privacy.dsar.erasure_planned",
+    )
+
+
+@router.post("/{request_id}/execute", response_model=DataSubjectRequestResponse)
+def execute_erasure(
+    request_id: str,
+    payload: DataSubjectExecutionRequest,
+    request: Request,
+    if_match: str | None = Header(default=None, alias="If-Match"),
+    principal: ApiPrincipal = Depends(get_api_principal),
+    session: Session = Depends(get_session),
+) -> DataSubjectRequestResponse:
+    _require(principal, ERASE_SCOPE)
+    if payload.confirmation != f"ERASE {request_id}":
+        raise HTTPException(
+            status_code=400,
+            detail=f'Type "ERASE {request_id}" to confirm the selected actions.',
+        )
+    return _mutate(
+        session,
+        principal,
+        request_id,
+        payload.base_revision,
+        if_match,
+        lambda row: execute_data_subject_erasure(
+            session,
+            registry=_registry(request),
+            row=row,
+            expected_revision=payload.base_revision,
+            action_ids=payload.action_ids,
+        ),
+        "privacy.dsar.erasure_executed",
+        details={"action_ids": payload.action_ids},
+    )
+
+
+@router.get("/{request_id}/export")
+def export_request(
+    request_id: str,
+    principal: ApiPrincipal = Depends(get_api_principal),
+    session: Session = Depends(get_session),
+) -> Response:
+    _require(principal, EXPORT_SCOPE)
+    row = _row(session, principal, request_id)
+    content = data_subject_export(row)
+    _audit(
+        session,
+        principal,
+        row,
+        "privacy.dsar.exported",
+        details={"export_bytes": len(content)},
+    )
+    session.commit()
+    safe_reference = re.sub(r"[^A-Za-z0-9._-]+", "-", row.reference).strip("-")
+    filename = f"dsar-{safe_reference or row.id}.json"
+    return Response(
+        content=content,
+        media_type="application/json",
+        headers={"Content-Disposition": f'attachment; filename="{filename}"'},
+    )
+
+
+def _mutate(
+    session: Session,
+    principal: ApiPrincipal,
+    request_id: str,
+    base_revision: int,
+    if_match: str | None,
+    operation: Any,
+    audit_action: str,
+    *,
+    details: dict[str, Any] | None = None,
+) -> DataSubjectRequestResponse:
+    try:
+        assert_revision_precondition(
+            if_match,
+            resource_type="data_subject_request",
+            resource_id=request_id,
+            submitted_base_revision=base_revision,
+        )
+        row = get_data_subject_request(
+            session,
+            tenant_id=principal.tenant_id,
+            request_id=request_id,
+            for_update=True,
+        )
+        operation(row)
+        _audit(session, principal, row, audit_action, details=details)
+        session.commit()
+        session.refresh(row)
+        return _detail(row)
+    except LookupError as exc:
+        session.rollback()
+        raise HTTPException(status_code=404, detail=str(exc)) from exc
+    except MissingPreconditionError as exc:
+        session.rollback()
+        raise HTTPException(status_code=428, detail=exc.as_dict()) from exc
+    except RevisionConflictError as exc:
+        session.rollback()
+        raise HTTPException(status_code=409, detail=exc.as_dict()) from exc
+    except ConcurrencyError as exc:
+        session.rollback()
+        raise HTTPException(status_code=412, detail=str(exc)) from exc
+    except ValueError as exc:
+        session.rollback()
+        raise HTTPException(status_code=400, detail=str(exc)) from exc
+
+
+def _row(
+    session: Session,
+    principal: ApiPrincipal,
+    request_id: str,
+) -> DataSubjectRequest:
+    try:
+        return get_data_subject_request(
+            session,
+            tenant_id=principal.tenant_id,
+            request_id=request_id,
+        )
+    except LookupError as exc:
+        raise HTTPException(status_code=404, detail=str(exc)) from exc
+
+
+def _detail(row: DataSubjectRequest) -> DataSubjectRequestResponse:
+    return DataSubjectRequestResponse(
+        request=data_subject_request_dict(row, include_subject=True),
+        search=dict(row.search_result),
+        erasure_plan=dict(row.erasure_plan),
+        execution=dict(row.execution_result),
+    )
+
+
+def _subject(payload: DataSubjectSelectorRequest) -> DsarSubjectRef:
+    return DsarSubjectRef(
+        account_id=_text(payload.account_id),
+        identity_id=_text(payload.identity_id),
+        membership_id=_text(payload.membership_id),
+        email=_text(payload.email),
+        external_references={
+            str(key).strip(): str(value).strip()
+            for key, value in payload.external_references.items()
+            if str(key).strip() and str(value).strip()
+        },
+    )
+
+
+def _registry(request: Request) -> object:
+    registry = getattr(request.app.state, "govoplan_registry", None)
+    if registry is None:
+        raise HTTPException(status_code=503, detail="Module registry is unavailable.")
+    return registry
+
+
+def _require(principal: ApiPrincipal, scope: str) -> None:
+    if not has_scope(principal, scope):
+        raise HTTPException(status_code=403, detail=f"Missing scope: {scope}")
+
+
+def _audit(
+    session: Session,
+    principal: ApiPrincipal,
+    row: DataSubjectRequest,
+    action: str,
+    *,
+    details: dict[str, Any] | None = None,
+) -> None:
+    audit_event(
+        session,
+        tenant_id=principal.tenant_id,
+        action=action,
+        user_id=principal.membership_id,
+        api_key_id=principal.api_key_id,
+        object_type="data_subject_request",
+        object_id=row.id,
+        details={
+            "reference": row.reference,
+            "status": row.status,
+            "resource_revision": row.resource_revision,
+            **(details or {}),
+        },
+    )
+
+
+def _text(value: str | None) -> str | None:
+    normalized = (value or "").strip()
+    return normalized or None
+
+
+__all__ = ["router"]
@@ -17,6 +17,7 @@ from govoplan_core.core.registry import PlatformRegistry
 from govoplan_core.db.query_metrics import collect_query_metrics
 from govoplan_core.server.conditional_requests import conditional_json_get_middleware
 from govoplan_core.server.request_limits import RequestBodyLimitMiddleware
+from govoplan_core.server.temporal import temporal_data_context_middleware

 LifespanFactory = Callable[[FastAPI], AbstractAsyncContextManager[None] | AsyncIterator[None]]
 logger = logging.getLogger("govoplan.request")
@@ -169,6 +170,7 @@ def create_govoplan_app(
            return response

    app.middleware("http")(conditional_json_get_middleware)
+    app.middleware("http")(temporal_data_context_middleware)

    origins = [item.strip() for item in cors_origins if item.strip()]
    if origins:
@@ -7,11 +7,26 @@ from govoplan_core.admin.models import SystemSettings
 from govoplan_core.admin.settings import SYSTEM_SETTINGS_ID
 from govoplan_core.auth import ApiPrincipal, get_api_principal, require_any_scope
 from govoplan_core.core.maintenance import saved_maintenance_mode
+from govoplan_core.core.navigation import (
+    EffectiveNavigationItem,
+    navigation_preferences_from_mapping,
+    navigation_preferences_from_settings,
+    resolve_navigation_preferences,
+)
 from govoplan_core.core.module_entitlements import (
    module_entitlement_payload,
    tenant_module_entitlement_state,
 )
-from govoplan_core.core.modules import FrontendModule, FrontendRoute, ModuleManifest, NavItem, PublicFrontendRoute
+from govoplan_core.core.modules import (
+    FrontendModule,
+    FrontendRoute,
+    ModuleManifest,
+    NavItem,
+    ProductAreaContribution,
+    PublicFrontendRoute,
+    QuickAccessTool,
+    SUPPORTED_PRESENTATION_CONTRACT_VERSION,
+)
 from govoplan_core.core.platform_interfaces import (
    manifest_interface_catalog,
    platform_interface_catalog,
@@ -78,21 +93,116 @@ def _effective_manifest_state(
    )


-def _nav_item_payload(item: NavItem, module_id: str | None = None) -> dict[str, object]:
+def _effective_navigation_state(
+    principal: ApiPrincipal,
+    manifests: tuple[ModuleManifest, ...],
+) -> dict[str, dict[str, EffectiveNavigationItem]]:
+    default_items: list[tuple[int, str, str]] = []
+    for manifest in manifests:
+        frontend_items = (
+            manifest.frontend.nav_items
+            if manifest.frontend is not None and manifest.frontend.nav_items
+            else manifest.nav_items
+        )
+        for item in frontend_items:
+            navigation_id = item.surface_id or navigation_view_surface_id(
+                manifest.id, item.path
+            )
+            default_items.append((item.order, item.label, navigation_id))
+    default_ids = [
+        item_id
+        for _order, _label, item_id in sorted(
+            default_items, key=lambda item: (item[0], item[1], item[2])
+        )
+    ]
+
+    principal_ref = getattr(principal, "principal", None)
+    tenant_id = getattr(principal_ref, "tenant_id", None)
+    system_preferences = None
+    tenant_preferences = None
+    if tenant_id is not None:
+        try:
+            with get_database().session() as session:
+                system_item = session.get(SystemSettings, SYSTEM_SETTINGS_ID)
+                tenant = session.get(Tenant, tenant_id)
+                system_preferences = navigation_preferences_from_settings(
+                    system_item.settings if system_item is not None else {}
+                )
+                tenant_preferences = navigation_preferences_from_settings(
+                    tenant.settings if tenant is not None else {}
+                )
+        except (RuntimeError, SQLAlchemyError) as exc:
+            raise HTTPException(
+                status_code=503,
+                detail="Navigation preferences could not be resolved.",
+            ) from exc
+
+    user_settings = getattr(getattr(principal, "user", None), "settings", {})
+    user_ui = user_settings.get("ui") if isinstance(user_settings, dict) else {}
+    user_navigation = user_ui.get("navigation") if isinstance(user_ui, dict) else None
+    user_preferences = (
+        navigation_preferences_from_mapping(user_navigation)
+        if isinstance(user_navigation, dict)
+        else None
+    )
    return {
+        "module": resolve_navigation_preferences(default_ids),
+        "system": resolve_navigation_preferences(
+            default_ids,
+            system=system_preferences,
+        ),
+        "tenant": resolve_navigation_preferences(
+            default_ids,
+            system=system_preferences,
+            tenant=tenant_preferences,
+        ),
+        "user": resolve_navigation_preferences(
+            default_ids,
+            system=system_preferences,
+            tenant=tenant_preferences,
+            user=user_preferences,
+        ),
+    }
+
+
+def _nav_item_payload(
+    item: NavItem,
+    module_id: str | None = None,
+    navigation: dict[str, dict[str, EffectiveNavigationItem]] | None = None,
+) -> dict[str, object]:
+    navigation_id = (
+        item.surface_id or navigation_view_surface_id(module_id, item.path)
+        if module_id
+        else item.surface_id
+    )
+    effective = (
+        navigation.get("user", {}).get(navigation_id)
+        if navigation_id and navigation
+        else None
+    )
+    payload = {
        "path": item.path,
        "label": item.label,
        "icon": item.icon,
        "section": item.section,
        "required_all": list(item.required_all),
        "required_any": list(item.required_any),
-        "order": item.order,
-        "surface_id": (
-            item.surface_id or navigation_view_surface_id(module_id, item.path)
-            if module_id
-            else item.surface_id
-        ),
+        "order": effective.order if effective is not None else item.order,
+        "surface_id": navigation_id,
    }
+    if effective is not None:
+        payload.update(effective.as_dict())
+        payload["navigation_layers"] = {
+            scope: {
+                "order": scoped.order,
+                "visible": scoped.visible,
+                "locked": scoped.locked,
+                "lock_source": scoped.lock_source,
+            }
+            for scope in ("module", "system", "tenant")
+            if (scoped := navigation.get(scope, {}).get(navigation_id)) is not None
+        }
+    return payload


 def _frontend_route_payload(route: FrontendRoute, module_id: str | None = None) -> dict[str, object]:
@@ -132,6 +242,41 @@ def _view_surface_payload(surface: ViewSurface) -> dict[str, object]:
    }


+def _product_area_payload(area: ProductAreaContribution) -> dict[str, object]:
+    return {
+        "id": area.id,
+        "module_id": area.module_id,
+        "label": area.label,
+        "description": area.description,
+        "icon": area.icon,
+        "surface_ids": list(area.surface_ids),
+        "order": area.order,
+    }
+
+
+def _quick_access_tool_payload(tool: QuickAccessTool) -> dict[str, object]:
+    return {
+        "id": tool.id,
+        "module_id": tool.module_id,
+        "category_id": tool.category_id,
+        "label": tool.label,
+        "description": tool.description,
+        "surface_id": tool.surface_id,
+        "icon": tool.icon,
+        "full_page_path": tool.full_page_path,
+        "required_all": list(tool.required_all),
+        "required_any": list(tool.required_any),
+        "order": tool.order,
+        "default_enabled": tool.default_enabled,
+        "modes": list(tool.modes),
+        "contract_version": tool.contract_version,
+        "availability": tool.availability,
+        "accepted_reference_kinds": list(tool.accepted_reference_kinds),
+        "returned_reference_kinds": list(tool.returned_reference_kinds),
+        "help_context_id": tool.help_context_id,
+    }
+
+
 def _frontend_view_surfaces(manifest: ModuleManifest) -> list[dict[str, object]]:
    return [
        _view_surface_payload(surface)
@@ -139,7 +284,68 @@ def _frontend_view_surfaces(manifest: ModuleManifest) -> list[dict[str, object]]
    ]


-def _frontend_payload(manifest: ModuleManifest) -> dict[str, object] | None:
+def _documentation_help_contexts(manifest: ModuleManifest) -> list[dict[str, object]]:
+    contexts: list[dict[str, object]] = []
+    seen: set[str] = set()
+
+    def append_context(context_id: str, topic) -> None:
+        if not context_id or context_id in seen:
+            return
+        seen.add(context_id)
+        contexts.append(
+            {
+                "id": context_id,
+                "topic_id": topic.id,
+                "title": topic.title,
+                "documentation_types": list(topic.documentation_types),
+            }
+        )
+
+    for topic in manifest.documentation:
+        raw_contexts = topic.metadata.get("help_contexts", ())
+        if isinstance(raw_contexts, str) or not isinstance(raw_contexts, (list, tuple, set)):
+            continue
+        for raw_context in raw_contexts:
+            context_id = str(raw_context).strip()
+            append_context(context_id, topic)
+
+    frontend = manifest.frontend
+    if frontend is None or not manifest.documentation:
+        return contexts
+
+    ordered_topics = sorted(manifest.documentation, key=lambda item: (item.order, item.id))
+
+    def baseline_topic(documentation_type: str):
+        return next(
+            (
+                topic
+                for topic in ordered_topics
+                if documentation_type in topic.documentation_types
+            ),
+            ordered_topics[0],
+        )
+
+    user_topic = baseline_topic("user")
+    admin_topic = baseline_topic("admin")
+    for route in frontend.routes:
+        if route.surface_id:
+            append_context(route.surface_id, user_topic)
+    for route in frontend.settings_routes:
+        if route.surface_id:
+            append_context(route.surface_id, admin_topic)
+    for item in frontend.nav_items:
+        if item.surface_id:
+            append_context(item.surface_id, user_topic)
+    for surface in frontend.view_surfaces:
+        topic = admin_topic if ".admin." in surface.id else user_topic
+        append_context(surface.id, topic)
+    return contexts
+
+
+def _frontend_payload(
+    manifest: ModuleManifest,
+    navigation: dict[str, dict[str, EffectiveNavigationItem]] | None = None,
+) -> dict[str, object] | None:
    frontend = manifest.frontend
    if frontend is None:
        return None
@@ -155,10 +361,20 @@ def _frontend_payload(manifest: ModuleManifest) -> dict[str, object] | None:
        "public_routes": [
            _public_frontend_route_payload(route) for route in frontend.public_routes
        ],
-        "nav": [_nav_item_payload(item, manifest.id) for item in frontend.nav_items],
+        "nav": [
+            _nav_item_payload(item, manifest.id, navigation)
+            for item in frontend.nav_items
+        ],
        "settings_routes": [_frontend_route_payload(route, manifest.id) for route in frontend.settings_routes],
        "view_surface_contract_version": VIEW_SURFACE_CONTRACT_VERSION,
        "view_surfaces": _frontend_view_surfaces(manifest),
+        "presentation_contract_version": SUPPORTED_PRESENTATION_CONTRACT_VERSION,
+        "product_areas": [
+            _product_area_payload(area) for area in frontend.product_areas
+        ],
+        "quick_access_tools": [
+            _quick_access_tool_payload(tool) for tool in frontend.quick_access_tools
+        ],
    }


@@ -214,6 +430,7 @@ def create_platform_router(settings: object | None = None) -> APIRouter:
            request,
            principal,
        )
+        navigation_state = _effective_navigation_state(principal, manifests)
        principal_ref = getattr(principal, "principal", None)
        tenant_id = getattr(principal_ref, "tenant_id", None)
        return {
@@ -230,6 +447,7 @@ def create_platform_router(settings: object | None = None) -> APIRouter:
                        if manifest.architecture is not None
                        else None
                    ),
+                    "information_governance": manifest.information_governance.to_dict(),
                    "external_providers": [
                        declaration.to_dict()
                        for declaration in manifest.external_providers
@@ -240,8 +458,12 @@ def create_platform_router(settings: object | None = None) -> APIRouter:
                        for key, value in manifest_interface_catalog(manifest).items()
                        if key != "declarations"
                    },
-                    "nav": [_nav_item_payload(item, manifest.id) for item in manifest.nav_items],
-                    "frontend": _frontend_payload(manifest),
+                    "help_contexts": _documentation_help_contexts(manifest),
+                    "nav": [
+                        _nav_item_payload(item, manifest.id, navigation_state)
+                        for item in manifest.nav_items
+                    ],
+                    "frontend": _frontend_payload(manifest, navigation_state),
                }
                for manifest in manifests
            ],
@@ -274,6 +496,7 @@ def create_platform_router(settings: object | None = None) -> APIRouter:
                    "id": manifest.id,
                    "name": manifest.name,
                    "version": manifest.version,
+                    "help_contexts": _documentation_help_contexts(manifest),
                    "frontend": _public_frontend_payload(manifest.frontend),
                }
                for manifest in registry.manifests()
@@ -0,0 +1,77 @@
+from __future__ import annotations
+
+from collections.abc import Awaitable, Callable
+from datetime import UTC, datetime
+
+from fastapi import Request, Response
+from fastapi.responses import JSONResponse
+
+from govoplan_core.core.temporal import (
+    RECORDED_AT_HEADER,
+    TEMPORAL_EVALUATED_AT_HEADER,
+    TEMPORAL_VARY_HEADERS,
+    VALIDITY_MODE_HEADER,
+    VALID_AT_HEADER,
+    TemporalContextError,
+    TemporalDataContext,
+    bind_temporal_data_context,
+    current_temporal_data_context,
+    parse_temporal_data_context,
+    reset_temporal_data_context,
+)
+
+
+async def temporal_data_context_middleware(
+    request: Request,
+    call_next: Callable[[Request], Awaitable[Response]],
+) -> Response:
+    try:
+        context = parse_temporal_data_context(
+            validity_mode=request.headers.get(VALIDITY_MODE_HEADER),
+            valid_at=request.headers.get(VALID_AT_HEADER),
+            recorded_at=request.headers.get(RECORDED_AT_HEADER),
+            evaluated_at=datetime.now(UTC),
+        )
+    except TemporalContextError as exc:
+        return JSONResponse(status_code=400, content={"detail": str(exc)})
+
+    request.state.govoplan_temporal_data_context = context
+    token = bind_temporal_data_context(context)
+    try:
+        response = await call_next(request)
+    finally:
+        reset_temporal_data_context(token)
+
+    response.headers[VALIDITY_MODE_HEADER] = context.validity_mode
+    response.headers[TEMPORAL_EVALUATED_AT_HEADER] = _timestamp(
+        context.evaluated_at
+    )
+    if context.valid_at is not None:
+        response.headers[VALID_AT_HEADER] = _timestamp(context.valid_at)
+    if context.recorded_at is not None:
+        response.headers[RECORDED_AT_HEADER] = _timestamp(context.recorded_at)
+    _merge_vary(response, TEMPORAL_VARY_HEADERS)
+    return response
+
+
+def get_temporal_data_context(request: Request) -> TemporalDataContext:
+    context = getattr(request.state, "govoplan_temporal_data_context", None)
+    return context if isinstance(context, TemporalDataContext) else current_temporal_data_context()
+
+
+def _merge_vary(response: Response, names: tuple[str, ...]) -> None:
+    current = {
+        item.strip().lower(): item.strip()
+        for item in response.headers.get("Vary", "").split(",")
+        if item.strip()
+    }
+    for name in names:
+        current.setdefault(name.lower(), name)
+    response.headers["Vary"] = ", ".join(current.values())
+
+
+def _timestamp(value: datetime) -> str:
+    return value.astimezone(UTC).isoformat().replace("+00:00", "Z")
+
+
+__all__ = ["get_temporal_data_context", "temporal_data_context_middleware"]
@@ -107,7 +107,7 @@ class Settings(BaseSettings):
        default=(
            "tenancy,organizations,identity,idm,access,admin,dashboard,policy,"
            "audit,campaigns,files,mail,calendar,poll,scheduling,connectors,"
-            "datasources,dataflow,dist_lists,templates,workflow_engine,workflow,views,search,risk_compliance,"
+            "datasources,dataflow,dist_lists,templates,workflow_engine,workflow,tasks,views,search,risk_compliance,"
            "postbox,notifications,docs,ops"
        ),
        alias="ENABLED_MODULES",
@@ -262,6 +262,16 @@ class Settings(BaseSettings):
        le=90,
        alias="SCHEDULING_CANCELLATION_NOTICE_DAYS",
    )
+    scheduling_public_self_enrollment_enabled: bool = Field(
+        default=True,
+        alias="SCHEDULING_PUBLIC_SELF_ENROLLMENT_ENABLED",
+    )
+    scheduling_public_self_enrollment_max_capacity: int = Field(
+        default=10_000,
+        ge=1,
+        le=10_000,
+        alias="SCHEDULING_PUBLIC_SELF_ENROLLMENT_MAX_CAPACITY",
+    )
    mock_mailbox_dir: str = Field(default="runtime/mock-mailbox", alias="MOCK_MAILBOX_DIR")

    # Development bootstrap only. Do not use this in production.
@@ -33,7 +33,7 @@ class Tenant:
    slug: Mapped[str] = mapped_column(String(100), unique=True, nullable=False, index=True)
    name: Mapped[str] = mapped_column(String(255), nullable=False)
    description: Mapped[str | None] = mapped_column(Text)
-    default_locale: Mapped[str] = mapped_column(String(20), default="en", nullable=False)
+    default_locale: Mapped[str] = mapped_column(String(20), default="de", nullable=False)
    settings: Mapped[dict[str, Any]] = mapped_column(JSON, default=dict, nullable=False)
    allow_custom_groups: Mapped[bool | None] = mapped_column(Boolean, nullable=True)
    allow_custom_roles: Mapped[bool | None] = mapped_column(Boolean, nullable=True)
@@ -32,6 +32,8 @@ from govoplan_core.core.access import (
    AccessDirectory,
    AccessDecisionProvenance,
    AccessExplanationService,
+    AccessExplanationSubjectDecision,
+    AccessExplanationSubjectPolicy,
    AccessGovernanceMaterializer,
    ResourceAccessExplanationProvider,
    AccessSemanticDirectory,
@@ -283,6 +285,22 @@ class _FakeAccessExplanationService:
        return self.provenance


+class _FakeAccessExplanationSubjectPolicy:
+    def decide_subject_selection(
+        self,
+        session: object,
+        principal: PrincipalRef,
+        *,
+        tenant_id: str,
+    ) -> AccessExplanationSubjectDecision:
+        del session, principal, tenant_id
+        return AccessExplanationSubjectDecision(
+            allow_other_users=True,
+            reason="Administrator diagnostic permitted.",
+            source="test",
+        )
+
+
 class _FakeTenantAccessProvisioner:
    def ensure_default_roles(self, session: object, tenant: object | None = None):
        del session, tenant
@@ -612,6 +630,10 @@ class AccessContractTests(unittest.TestCase):
        self.assertIsInstance(_FakeResourceAccessExplanationProvider(), ResourceAccessExplanationProvider)
        self.assertIsInstance(_FakeFileAccessProvider(), FileAccessProvider)
        self.assertIsInstance(_FakeAccessExplanationService(), AccessExplanationService)
+        self.assertIsInstance(
+            _FakeAccessExplanationSubjectPolicy(),
+            AccessExplanationSubjectPolicy,
+        )
        self.assertIsInstance(_FakeTenantAccessProvisioner(), TenantAccessProvisioner)
        self.assertIsInstance(_FakeAccessAdministration(), AccessAdministration)
        self.assertIsInstance(_FakeAccessGovernanceMaterializer(), AccessGovernanceMaterializer)
@@ -2463,13 +2463,42 @@ class ApiSmokeTests(unittest.TestCase):
            self.assertEqual(unchanged["file"]["id"], nextcloud_file["id"])
            self.assertEqual(unchanged["current_version_id"], synced["current_version_id"])

-            with patch("govoplan_files.backend.storage.connector_browse._smbclient_module") as smb_sdk:
-                smb_browse = self.client.get("/api/v1/files/connectors/profiles/tenant-smb/browse?path=shared", headers=headers)
-            self.assertEqual(smb_browse.status_code, 400, smb_browse.text)
-            self.assertIn("redirects/referrals", smb_browse.json()["detail"])
-            smb_sdk.assert_not_called()
+            from govoplan_files.backend.storage.connector_browse import (
+                ConnectorBrowseUnsupported,
+            )

-            with patch("govoplan_files.backend.storage.connector_imports._smbclient_module") as smb_import_sdk:
+            optional_dependency_error = ConnectorBrowseUnsupported(
+                "SMB connector browsing requires the optional smbprotocol dependency"
+            )
+            with patch(
+                "govoplan_files.backend.storage.connector_browse._smbclient_module",
+                side_effect=optional_dependency_error,
+            ) as missing_smb_loader:
+                missing_smb_browse = self.client.get(
+                    "/api/v1/files/connectors/profiles/tenant-smb/browse?path=shared",
+                    headers=headers,
+                )
+            self.assertEqual(missing_smb_browse.status_code, 501, missing_smb_browse.text)
+            self.assertIn("optional smbprotocol", missing_smb_browse.json()["detail"])
+            missing_smb_loader.assert_called_once_with()
+
+            with patch(
+                "govoplan_files.backend.storage.connector_browse._smbclient_module"
+            ) as available_smb_loader:
+                available_smb_loader.return_value.scandir.return_value.__enter__.return_value = iter(())
+                available_smb_browse = self.client.get(
+                    "/api/v1/files/connectors/profiles/tenant-smb/browse?path=shared",
+                    headers=headers,
+                )
+            self.assertEqual(available_smb_browse.status_code, 200, available_smb_browse.text)
+            self.assertEqual([], available_smb_browse.json()["items"])
+            self.assertNotIn("super-secret-smb", available_smb_browse.text)
+            available_smb_loader.assert_called_once_with()
+
+            with patch(
+                "govoplan_files.backend.storage.connector_imports._smbclient_module",
+                side_effect=optional_dependency_error,
+            ) as missing_smb_import_loader:
                smb_import = self.client.post(
                    "/api/v1/files/connectors/profiles/tenant-smb/import",
                    headers=headers,
@@ -2481,9 +2510,9 @@ class ApiSmokeTests(unittest.TestCase):
                        "target_folder": "imports",
                    },
                )
-            self.assertEqual(smb_import.status_code, 400, smb_import.text)
-            self.assertIn("redirects/referrals", smb_import.json()["detail"])
-            smb_import_sdk.assert_not_called()
+            self.assertEqual(smb_import.status_code, 501, smb_import.text)
+            self.assertIn("optional smbprotocol", smb_import.json()["detail"])
+            missing_smb_import_loader.assert_called_once_with()

            filtered = self.client.get("/api/v1/files/connectors/profiles?provider=smb", headers=headers)
            self.assertEqual(filtered.status_code, 200, filtered.text)
@@ -2915,7 +2944,18 @@ class ApiSmokeTests(unittest.TestCase):
        updated_campaigns = {item["id"]: item for item in after_update.json()["campaigns"]}
        self.assertEqual(updated_campaigns[campaign_id]["name"], "Delta campaign updated")

-        deleted = self.client.delete(f"/api/v1/campaigns/{campaign_id}", headers=headers)
+        lifecycle = self.client.get(
+            f"/api/v1/campaigns/{campaign_id}/lifecycle-policy",
+            headers=headers,
+        )
+        self.assertEqual(lifecycle.status_code, 200, lifecycle.text)
+        self.assertTrue(lifecycle.json()["actions"]["delete_campaign"]["allowed"])
+        deleted = self.client.request(
+            "DELETE",
+            f"/api/v1/campaigns/{campaign_id}",
+            headers=headers,
+            json={"expected_state_token": lifecycle.json()["state_token"]},
+        )
        self.assertEqual(deleted.status_code, 204, deleted.text)

        after_delete = self.client.get(
@@ -5261,6 +5301,12 @@ class ApiSmokeTests(unittest.TestCase):
                "allow_tenant_api_keys": system_item["allow_tenant_api_keys"],
                "available_languages": available_languages,
                "enabled_language_codes": enabled_codes,
+                "navigation": {
+                    "contract_version": "1",
+                    "order": ["mail.navigation.mail", "files.navigation.files"],
+                    "hidden": [],
+                    "locked": ["mail.navigation.mail"],
+                },
            },
        )
        self.assertEqual(updated_system.status_code, 200, updated_system.text)
@@ -5274,7 +5320,29 @@ class ApiSmokeTests(unittest.TestCase):
        system_delta_payload = system_delta.json()
        self.assertFalse(system_delta_payload["full"])
        self.assertIn("languages", system_delta_payload["changed_sections"])
+        self.assertIn("navigation", system_delta_payload["changed_sections"])
        self.assertIn("fr", system_delta_payload["sections"]["languages"]["enabled_language_codes"])
+        self.assertEqual(
+            ["mail.navigation.mail"],
+            system_delta_payload["sections"]["navigation"]["locked"],
+        )
+
+        tenant_item = tenant_initial_payload["item"]
+        updated_tenant = self.client.patch(
+            "/api/v1/admin/tenant/settings",
+            headers=headers,
+            json={
+                "default_locale": tenant_item["default_locale"],
+                "enabled_language_codes": tenant_item["enabled_language_codes"],
+                "navigation": {
+                    "contract_version": "1",
+                    "order": ["files.navigation.files"],
+                    "hidden": ["files.navigation.files"],
+                    "locked": [],
+                },
+            },
+        )
+        self.assertEqual(updated_tenant.status_code, 200, updated_tenant.text)

        tenant_delta = self.client.get(
            "/api/v1/admin/tenant/settings/delta",
@@ -5285,7 +5353,12 @@ class ApiSmokeTests(unittest.TestCase):
        tenant_delta_payload = tenant_delta.json()
        self.assertFalse(tenant_delta_payload["full"])
        self.assertIn("languages", tenant_delta_payload["changed_sections"])
+        self.assertIn("navigation", tenant_delta_payload["changed_sections"])
        self.assertIn("fr", tenant_delta_payload["sections"]["languages"]["system_enabled_language_codes"])
+        self.assertEqual(
+            ["files.navigation.files"],
+            tenant_delta_payload["sections"]["navigation"]["hidden"],
+        )

    def test_tenant_admin_delta_tracks_create_and_update(self) -> None:
        headers, _ = self._login()
@@ -5433,6 +5506,67 @@ class ApiSmokeTests(unittest.TestCase):
        self.assertEqual(deleted_delta.status_code, 200, deleted_delta.text)
        self.assertTrue(any(item["id"] == template_id and item["resource_type"] == "governance_template" for item in deleted_delta.json()["deleted"]))

+    def test_governance_template_bulk_synchronization_previews_and_applies(self) -> None:
+        headers, login = self._login()
+        tenant_id = login["tenant"]["id"]
+        approver_headers = self._create_system_approver(
+            headers,
+            tenant_id=tenant_id,
+            email="governance-sync-approver@example.local",
+        )
+        create_payload = {
+            "kind": "role",
+            "slug": "governance-sync",
+            "name": "Governance Sync",
+            "description": "Bulk reconciliation contract",
+            "permissions": ["admin:roles:read"],
+            "is_active": True,
+            "assignments": [{"tenant_id": tenant_id, "mode": "required"}],
+        }
+        change_request_id = self._approved_configuration_change(
+            headers,
+            approver_headers,
+            key="governance_templates",
+            value=create_payload,
+            target={"kind": "role", "slug": "governance-sync"},
+        )
+        created = self.client.post(
+            "/api/v1/admin/system/governance-templates",
+            headers=headers,
+            json={**create_payload, "change_request_id": change_request_id},
+        )
+        self.assertEqual(201, created.status_code, created.text)
+        template_id = created.json()["id"]
+
+        preview = self.client.post(
+            "/api/v1/admin/system/governance-templates/synchronize",
+            headers=headers,
+            json={"template_ids": [template_id], "dry_run": True},
+        )
+        self.assertEqual(200, preview.status_code, preview.text)
+        self.assertTrue(preview.json()["dry_run"])
+        self.assertEqual({"unchanged": 1}, preview.json()["counts"])
+        self.assertEqual("1", preview.json()["version"])
+        self.assertEqual("admin.bulk-synchronization", preview.json()["outcomes"][0]["provenance"]["source"])
+
+        applied = self.client.post(
+            "/api/v1/admin/system/governance-templates/synchronize",
+            headers=headers,
+            json={"template_ids": [template_id], "dry_run": False},
+        )
+        self.assertEqual(200, applied.status_code, applied.text)
+        self.assertFalse(applied.json()["dry_run"])
+        self.assertEqual({"unchanged": 1}, applied.json()["counts"])
+
+        audit = self.client.get(
+            "/api/v1/admin/audit",
+            headers=headers,
+            params={"all_tenants": True, "limit": 500},
+        )
+        actions = {item["action"] for item in audit.json()["items"]}
+        self.assertIn("governance_template.synchronization_previewed", actions)
+        self.assertIn("governance_template.synchronized", actions)
+
    def test_module_installer_history_supports_cursor_windows(self) -> None:
        from govoplan_core.core.module_installer import default_installer_runtime_dir

@@ -6085,6 +6219,121 @@ class ApiSmokeTests(unittest.TestCase):
        self.assertEqual(campaign_source["path"], f"campaign:{campaign_id}")
        self.assertIn("allow_campaign_profiles", campaign_source["applied_fields"])

+    def test_policy_impact_preview_is_bounded_audited_and_linked_to_commit(self) -> None:
+        headers, _ = self._login()
+        proposed_policy = {"visible_surface_ids": []}
+
+        preview = self.client.post(
+            "/api/v1/admin/policy-impact/preview",
+            headers=headers,
+            json={
+                "policy_family": "view",
+                "scope_type": "tenant",
+                "proposed_policy": proposed_policy,
+                "populations": [
+                    {
+                        "provider_id": "views",
+                        "selector": {
+                            "include_views": False,
+                            "include_surfaces": True,
+                        },
+                        "limit": 10,
+                    }
+                ],
+                "include_details": True,
+            },
+        )
+        self.assertEqual(200, preview.status_code, preview.text)
+        preview_payload = preview.json()
+        self.assertEqual(10, preview_payload["counts"]["newly_denied"])
+        self.assertEqual("truncated", preview_payload["populations"][0]["state"])
+        self.assertEqual(10, len(preview_payload["effects"]))
+
+        unchanged = self.client.get(
+            "/api/v1/admin/view-policies/tenant",
+            headers=headers,
+        )
+        self.assertEqual(200, unchanged.status_code, unchanged.text)
+        self.assertEqual({}, unchanged.json()["policy"])
+
+        committed = self.client.put(
+            "/api/v1/admin/view-policies/tenant",
+            headers=headers,
+            json={
+                "policy": proposed_policy,
+                "impact_preview_id": preview_payload["preview_id"],
+                "impact_proposal_hash": preview_payload["proposal_hash"],
+            },
+        )
+        self.assertEqual(200, committed.status_code, committed.text)
+        self.assertEqual([], committed.json()["policy"]["visible_surface_ids"])
+
+        from govoplan_audit.backend.db.models import AuditLog
+
+        with SessionLocal() as session:
+            audit_rows = (
+                session.query(AuditLog)
+                .filter(
+                    AuditLog.action.in_(
+                        ("policy.impact_previewed", "view_policy.updated")
+                    )
+                )
+                .all()
+            )
+        by_action = {row.action: row for row in audit_rows}
+        self.assertEqual(
+            preview_payload["proposal_hash"],
+            by_action["policy.impact_previewed"].details["proposal_hash"],
+        )
+        self.assertEqual(
+            preview_payload["preview_id"],
+            by_action["view_policy.updated"].details["impact_preview_id"],
+        )
+
+        stale = self.client.put(
+            "/api/v1/admin/view-policies/tenant",
+            headers=headers,
+            json={
+                "policy": {"allow_edit": False},
+                "impact_preview_id": preview_payload["preview_id"],
+                "impact_proposal_hash": preview_payload["proposal_hash"],
+            },
+        )
+        self.assertEqual(409, stale.status_code, stale.text)
+        self.assertEqual("policy_impact_preview_stale", stale.json()["detail"]["code"])
+
+        inherited_preview = self.client.post(
+            "/api/v1/admin/policy-impact/preview",
+            headers=headers,
+            json={
+                "policy_family": "view",
+                "scope_type": "tenant",
+                "proposed_policy": {},
+                "populations": [
+                    {
+                        "provider_id": "views",
+                        "selector": {
+                            "include_views": False,
+                            "include_surfaces": True,
+                        },
+                        "limit": 10,
+                    }
+                ],
+            },
+        )
+        self.assertEqual(200, inherited_preview.status_code, inherited_preview.text)
+        inherited_payload = inherited_preview.json()
+        removed = self.client.delete(
+            "/api/v1/admin/view-policies/tenant",
+            headers=headers,
+            params={
+                "impact_preview_id": inherited_payload["preview_id"],
+                "impact_proposal_hash": inherited_payload["proposal_hash"],
+            },
+        )
+        self.assertEqual(200, removed.status_code, removed.text)
+        self.assertEqual({}, removed.json()["policy"])
+
    def test_campaign_scoped_mail_profile_policy_is_enforced(self) -> None:
        headers, _ = self._login()
        created = self.client.post(
@@ -6377,6 +6626,199 @@ class ApiSmokeTests(unittest.TestCase):
        self.assertEqual(raw_test.status_code, 403, raw_test.text)
        self.assertIn("manage_credentials", raw_test.json()["detail"])

+    def test_appearance_defaults_precedence_and_policy_lock(self) -> None:
+        headers, _ = self._login()
+        system = self.client.get("/api/v1/admin/system/settings", headers=headers)
+        self.assertEqual(system.status_code, 200, system.text)
+        system_payload = system.json()
+
+        system_saved = self.client.patch(
+            "/api/v1/admin/system/settings",
+            headers=headers,
+            json={
+                "default_locale": system_payload["default_locale"],
+                "allow_tenant_custom_groups": system_payload["allow_tenant_custom_groups"],
+                "allow_tenant_custom_roles": system_payload["allow_tenant_custom_roles"],
+                "allow_tenant_api_keys": system_payload["allow_tenant_api_keys"],
+                "appearance_palette": "civic_blue",
+                "appearance_palette_locked": False,
+            },
+        )
+        self.assertEqual(system_saved.status_code, 200, system_saved.text)
+
+        tenant = self.client.get("/api/v1/admin/tenant/settings", headers=headers)
+        self.assertEqual(tenant.status_code, 200, tenant.text)
+        tenant_payload = tenant.json()
+        tenant_saved = self.client.patch(
+            "/api/v1/admin/tenant/settings",
+            headers=headers,
+            json={
+                "default_locale": tenant_payload["default_locale"],
+                "appearance_palette": "forest",
+                "appearance_palette_locked": False,
+            },
+        )
+        self.assertEqual(tenant_saved.status_code, 200, tenant_saved.text)
+        self.assertEqual(tenant_saved.json()["effective_appearance_palette"], "forest")
+
+        inherited = self.client.patch(
+            "/api/v1/auth/profile",
+            headers=headers,
+            json={"ui_preferences": {"palette": None}},
+        )
+        self.assertEqual(inherited.status_code, 200, inherited.text)
+        self.assertEqual(inherited.json()["user"]["appearance"]["palette"], "forest")
+        self.assertEqual(inherited.json()["user"]["appearance"]["source"], "tenant")
+
+        explicit = self.client.patch(
+            "/api/v1/auth/profile",
+            headers=headers,
+            json={"ui_preferences": {"palette": "plum"}},
+        )
+        self.assertEqual(explicit.status_code, 200, explicit.text)
+        self.assertEqual(explicit.json()["user"]["appearance"]["source"], "user")
+
+        tenant_locked = self.client.patch(
+            "/api/v1/admin/tenant/settings",
+            headers=headers,
+            json={
+                "default_locale": tenant_payload["default_locale"],
+                "appearance_palette": "forest",
+                "appearance_palette_locked": True,
+            },
+        )
+        self.assertEqual(tenant_locked.status_code, 200, tenant_locked.text)
+        locked_profile = self.client.get("/api/v1/auth/profile", headers=headers)
+        self.assertEqual(locked_profile.json()["user"]["appearance"]["source"], "tenant_lock")
+        self.assertTrue(locked_profile.json()["user"]["appearance"]["locked"])
+        unchanged_palette = self.client.patch(
+            "/api/v1/auth/profile",
+            headers=headers,
+            json={"ui_preferences": {"palette": "plum", "theme": "dark"}},
+        )
+        self.assertEqual(unchanged_palette.status_code, 200, unchanged_palette.text)
+        self.assertEqual(unchanged_palette.json()["user"]["ui_preferences"]["theme"], "dark")
+        denied = self.client.patch(
+            "/api/v1/auth/profile",
+            headers=headers,
+            json={"ui_preferences": {"palette": "default"}},
+        )
+        self.assertEqual(denied.status_code, 422, denied.text)
+
+        system_locked = self.client.patch(
+            "/api/v1/admin/system/settings",
+            headers=headers,
+            json={
+                "default_locale": system_payload["default_locale"],
+                "allow_tenant_custom_groups": system_payload["allow_tenant_custom_groups"],
+                "allow_tenant_custom_roles": system_payload["allow_tenant_custom_roles"],
+                "allow_tenant_api_keys": system_payload["allow_tenant_api_keys"],
+                "appearance_palette": "civic_blue",
+                "appearance_palette_locked": True,
+            },
+        )
+        self.assertEqual(system_locked.status_code, 200, system_locked.text)
+        blocked_tenant_override = self.client.patch(
+            "/api/v1/admin/tenant/settings",
+            headers=headers,
+            json={
+                "default_locale": tenant_payload["default_locale"],
+                "appearance_palette": "plum",
+                "appearance_palette_locked": False,
+            },
+        )
+        self.assertEqual(blocked_tenant_override.status_code, 422, blocked_tenant_override.text)
+        final_profile = self.client.get("/api/v1/auth/profile", headers=headers)
+        self.assertEqual(final_profile.json()["user"]["appearance"]["palette"], "civic_blue")
+        self.assertEqual(final_profile.json()["user"]["appearance"]["source"], "system_lock")
+
+    def test_governed_custom_appearance_overrides_are_atomic_and_removable(self) -> None:
+        headers, _ = self._login()
+        document = {
+            "schema_version": "1",
+            "light": {
+                "accent": "#245f91", "accent_foreground": "#ffffff",
+                "surface": "#ffffff", "surface_foreground": "#303135",
+                "success": "#d8eee8", "success_foreground": "#315f55",
+                "info": "#dce9f3", "info_foreground": "#294a61",
+                "warning": "#ffe1a3", "warning_foreground": "#593700",
+                "danger": "#f8d1cc", "danger_foreground": "#873c35",
+            },
+            "dark": {
+                "accent": "#7ea6c5", "accent_foreground": "#242424",
+                "surface": "#262724", "surface_foreground": "#f1f1f1",
+                "success": "#24473f", "success_foreground": "#d8eee8",
+                "info": "#243d4e", "info_foreground": "#dce9f3",
+                "warning": "#5a431f", "warning_foreground": "#ffe1a3",
+                "danger": "#4f2d2a", "danger_foreground": "#f8d1cc",
+            },
+        }
+        initially_denied = self.client.patch(
+            "/api/v1/auth/profile",
+            headers=headers,
+            json={"ui_preferences": {"appearance_overrides": document}},
+        )
+        self.assertEqual(initially_denied.status_code, 422, initially_denied.text)
+
+        system = self.client.get("/api/v1/admin/system/settings", headers=headers).json()
+        enabled = self.client.patch(
+            "/api/v1/admin/system/settings",
+            headers=headers,
+            json={
+                "default_locale": system["default_locale"],
+                "allow_tenant_custom_groups": system["allow_tenant_custom_groups"],
+                "allow_tenant_custom_roles": system["allow_tenant_custom_roles"],
+                "allow_tenant_api_keys": system["allow_tenant_api_keys"],
+                "appearance_custom_overrides_allowed": True,
+            },
+        )
+        self.assertEqual(enabled.status_code, 200, enabled.text)
+        self.assertTrue(enabled.json()["appearance_custom_overrides_allowed"])
+
+        tenant = self.client.get("/api/v1/admin/tenant/settings", headers=headers).json()
+        self.assertIsNone(tenant["appearance_custom_overrides_allowed"])
+        self.assertTrue(tenant["effective_appearance_custom_overrides_allowed"])
+        saved = self.client.patch(
+            "/api/v1/auth/profile",
+            headers=headers,
+            json={"ui_preferences": {"appearance_overrides": document}},
+        )
+        self.assertEqual(saved.status_code, 200, saved.text)
+        self.assertEqual(saved.json()["user"]["appearance"]["custom_overrides"], document)
+
+        invalid = {
+            **document,
+            "light": {**document["light"], "accent_foreground": document["light"]["accent"]},
+        }
+        rejected = self.client.patch(
+            "/api/v1/auth/profile",
+            headers=headers,
+            json={"ui_preferences": {"appearance_overrides": invalid}},
+        )
+        self.assertEqual(rejected.status_code, 422, rejected.text)
+        unchanged = self.client.get("/api/v1/auth/profile", headers=headers).json()
+        self.assertEqual(unchanged["user"]["appearance"]["custom_overrides"], document)
+
+        blocked = self.client.patch(
+            "/api/v1/admin/tenant/settings",
+            headers=headers,
+            json={
+                "default_locale": tenant["default_locale"],
+                "appearance_custom_overrides_allowed": False,
+            },
+        )
+        self.assertEqual(blocked.status_code, 200, blocked.text)
+        self.assertFalse(blocked.json()["effective_appearance_custom_overrides_allowed"])
+        inactive = self.client.get("/api/v1/auth/profile", headers=headers).json()
+        self.assertIsNone(inactive["user"]["appearance"]["custom_overrides"])
+        removed = self.client.patch(
+            "/api/v1/auth/profile",
+            headers=headers,
+            json={"ui_preferences": {"appearance_overrides": None}},
+        )
+        self.assertEqual(removed.status_code, 200, removed.text)
+        self.assertIsNone(removed.json()["user"]["ui_preferences"]["appearance_overrides"])
+
    def test_profile_refresh_and_system_role_protection_model(self) -> None:
        headers, _ = self._login()
        profile = self.client.patch(
@@ -6391,6 +6833,12 @@ class ApiSmokeTests(unittest.TestCase):
                    "reduce_motion": True,
                    "sticky_section_sidebars": False,
                    "theme": "dark",
+                    "palette": "civic_blue",
+                    "navigation": {
+                        "contract_version": "1",
+                        "order": ["files.navigation.files", "mail.navigation.mail"],
+                        "hidden": ["mail.navigation.mail"],
+                    },
                },
            },
        )
@@ -6405,13 +6853,47 @@ class ApiSmokeTests(unittest.TestCase):
                "reduce_motion": True,
                "sticky_section_sidebars": False,
                "theme": "dark",
+                "palette": "civic_blue",
+                "appearance_overrides": None,
+                "navigation": {
+                    "contract_version": "1",
+                    "order": ["files.navigation.files", "mail.navigation.mail"],
+                    "hidden": ["mail.navigation.mail"],
+                    "locked": [],
+                },
            },
        )
+        rejected_lock = self.client.patch(
+            "/api/v1/auth/profile",
+            headers=headers,
+            json={
+                "ui_preferences": {
+                    **profile.json()["user"]["ui_preferences"],
+                    "navigation": {
+                        "contract_version": "1",
+                        "order": [],
+                        "hidden": [],
+                        "locked": ["files.navigation.files"],
+                    },
+                },
+            },
+        )
+        self.assertEqual(rejected_lock.status_code, 422, rejected_lock.text)
+        rejected_palette = self.client.patch(
+            "/api/v1/auth/profile",
+            headers=headers,
+            json={"ui_preferences": {"palette": "low_contrast_custom"}},
+        )
+        self.assertEqual(rejected_palette.status_code, 422, rejected_palette.text)
        refreshed = self.client.get("/api/v1/auth/me", headers=headers)
        self.assertEqual(refreshed.status_code, 200, refreshed.text)
        self.assertEqual(refreshed.json()["user"]["display_name"], "Global Account Name")
        self.assertEqual(refreshed.json()["user"]["tenant_display_name"], "Tenant Alias")
        self.assertEqual(refreshed.json()["user"]["ui_preferences"]["theme"], "dark")
+        self.assertEqual(
+            refreshed.json()["user"]["ui_preferences"]["palette"],
+            "civic_blue",
+        )
        self.assertFalse(refreshed.json()["user"]["ui_preferences"]["show_inline_help_hints"])

        roles = self.client.get("/api/v1/admin/system/roles", headers=headers)
@@ -0,0 +1,127 @@
+from __future__ import annotations
+
+import pytest
+
+from govoplan_core.core.appearance import (
+    normalize_appearance_overrides,
+    resolve_effective_appearance,
+    update_appearance_custom_overrides_policy,
+    update_appearance_settings,
+)
+
+
+def _overrides() -> dict[str, object]:
+    return {
+        "schema_version": "1",
+        "light": {
+            "accent": "#245f91", "accent_foreground": "#ffffff",
+            "surface": "#ffffff", "surface_foreground": "#303135",
+            "success": "#d8eee8", "success_foreground": "#315f55",
+            "info": "#dce9f3", "info_foreground": "#294a61",
+            "warning": "#ffe1a3", "warning_foreground": "#593700",
+            "danger": "#f8d1cc", "danger_foreground": "#873c35",
+        },
+        "dark": {
+            "accent": "#7ea6c5", "accent_foreground": "#242424",
+            "surface": "#262724", "surface_foreground": "#f1f1f1",
+            "success": "#24473f", "success_foreground": "#d8eee8",
+            "info": "#243d4e", "info_foreground": "#dce9f3",
+            "warning": "#5a431f", "warning_foreground": "#ffe1a3",
+            "danger": "#4f2d2a", "danger_foreground": "#f8d1cc",
+        },
+    }
+
+
+def test_appearance_precedence_and_inheritance() -> None:
+    decision = resolve_effective_appearance(
+        system_settings={"appearance": {"default_palette": "civic_blue"}},
+        tenant_settings={"appearance": {"default_palette": "forest"}},
+        user_settings={"ui": {"palette": "plum"}},
+    )
+    assert (decision.palette, decision.source, decision.locked) == ("plum", "user", False)
+
+    inherited = resolve_effective_appearance(
+        system_settings={"appearance": {"default_palette": "civic_blue"}},
+        tenant_settings={"appearance": {"default_palette": "forest"}},
+        user_settings={"ui": {"palette": None}},
+    )
+    assert (inherited.palette, inherited.source) == ("forest", "tenant")
+
+
+def test_system_lock_wins_and_invalid_values_fail_safe() -> None:
+    decision = resolve_effective_appearance(
+        system_settings={"appearance": {"default_palette": "civic_blue", "palette_locked": True}},
+        tenant_settings={"appearance": {"default_palette": "forest", "palette_locked": True}},
+        user_settings={"ui": {"palette": "plum"}},
+    )
+    assert decision.as_dict() == {
+        "palette": "civic_blue",
+        "source": "system_lock",
+        "locked": True,
+        "system_default_palette": "civic_blue",
+        "tenant_default_palette": "forest",
+        "inherited_palette": "civic_blue",
+        "custom_overrides": None,
+        "custom_overrides_allowed": False,
+    }
+    fallback = resolve_effective_appearance(
+        system_settings={"appearance": {"default_palette": "unsafe"}},
+        tenant_settings={},
+        user_settings={"ui": {"palette": "unknown"}},
+    )
+    assert (fallback.palette, fallback.source) == ("default", "system")
+
+
+def test_appearance_settings_reset_without_touching_neighbors() -> None:
+    configured = update_appearance_settings(
+        {"neighbor": {"kept": True}},
+        default_palette="forest",
+        palette_locked=True,
+    )
+    assert configured["neighbor"] == {"kept": True}
+    assert configured["appearance"] == {"default_palette": "forest", "palette_locked": True}
+    assert update_appearance_settings(configured, default_palette=None, palette_locked=False) == {
+        "neighbor": {"kept": True}
+    }
+
+
+def test_custom_overrides_require_system_and_tenant_policy_and_validate_both_modes() -> None:
+    document = _overrides()
+    normalized = normalize_appearance_overrides(document)
+    assert normalized == document
+    decision = resolve_effective_appearance(
+        system_settings={"appearance": {"allow_custom_overrides": True}},
+        tenant_settings={"appearance": {"allow_custom_overrides": True}},
+        user_settings={"ui": {"appearance_overrides": document}},
+    )
+    assert decision.custom_overrides_allowed is True
+    assert decision.custom_overrides == document
+
+    blocked = resolve_effective_appearance(
+        system_settings={"appearance": {"allow_custom_overrides": True}},
+        tenant_settings={"appearance": {"allow_custom_overrides": False}},
+        user_settings={"ui": {"appearance_overrides": document}},
+    )
+    assert blocked.custom_overrides_allowed is False
+    assert blocked.custom_overrides is None
+
+    invalid = _overrides()
+    invalid["dark"]["danger"] = invalid["dark"]["warning"]  # type: ignore[index]
+    with pytest.raises(ValueError, match="visibly distinct"):
+        normalize_appearance_overrides(invalid)
+
+    low_contrast = _overrides()
+    low_contrast["light"]["accent_foreground"] = "#245f91"  # type: ignore[index]
+    with pytest.raises(ValueError, match="WCAG AA"):
+        normalize_appearance_overrides(low_contrast)
+
+
+def test_custom_override_policy_update_preserves_neighboring_appearance_settings() -> None:
+    configured = update_appearance_custom_overrides_policy(
+        {"appearance": {"default_palette": "forest"}},
+        allowed=True,
+    )
+    assert configured == {"appearance": {"default_palette": "forest", "allow_custom_overrides": True}}
+    assert update_appearance_custom_overrides_policy(configured, allowed=None) == {
+        "appearance": {"default_palette": "forest"}
+    }
@@ -0,0 +1,64 @@
+from datetime import UTC, datetime
+import unittest
+
+from govoplan_core.core.application_status import (
+    CAPABILITY_APPLICATION_STATUS_PROJECTION,
+    application_status_projection_provider,
+)
+
+
+class _Provider:
+    def tenant_id_for_tracking_id(self, session, *, tracking_id):
+        return "tenant-1"
+
+    def public_access_challenge(self, session, *, tracking_id):
+        return {"tracking_id": tracking_id, "mode": "permanent_link"}
+
+    def get_authenticated_projection(
+        self, session, principal, *, tracking_id, observed_at
+    ):
+        return {"tracking_id": tracking_id, "status": "submitted"}
+
+    def get_public_projection(self, session, *, tracking_id, token, observed_at):
+        return {"tracking_id": tracking_id, "status": "submitted"}
+
+    def request_email_link(self, session, *, tracking_id, email, requested_at):
+        return True
+
+
+class _Registry:
+    def __init__(self, provider):
+        self.provider = provider
+
+    def has_capability(self, name):
+        return name == CAPABILITY_APPLICATION_STATUS_PROJECTION
+
+    def capability(self, name):
+        return self.provider
+
+
+class ApplicationStatusContractTests(unittest.TestCase):
+    def test_resolves_only_structurally_complete_provider(self):
+        provider = _Provider()
+        resolved = application_status_projection_provider(_Registry(provider))
+
+        self.assertIs(provider, resolved)
+        self.assertEqual(
+            "tenant-1",
+            resolved.tenant_id_for_tracking_id(None, tracking_id="tracking-1"),
+        )
+        self.assertTrue(
+            resolved.request_email_link(
+                None,
+                tracking_id="tracking-1",
+                email="resident@example.test",
+                requested_at=datetime(2026, 8, 19, tzinfo=UTC),
+            )
+        )
+
+    def test_rejects_incomplete_provider(self):
+        self.assertIsNone(application_status_projection_provider(_Registry(object())))
+
+
+if __name__ == "__main__":
+    unittest.main()
@@ -0,0 +1,106 @@
+from __future__ import annotations
+
+import unittest
+from contextlib import contextmanager
+from types import SimpleNamespace
+from unittest.mock import MagicMock, patch
+
+from govoplan_core.celery_app import celery, dispatch_campaign_schedules
+from tests.worker_test_support import allowed_worker_admissions
+
+
+class CampaignScheduleWorkerTests(unittest.TestCase):
+    def test_dispatch_preserves_autonomous_recovery_result(self) -> None:
+        session = MagicMock()
+
+        @contextmanager
+        def session_scope():
+            yield session
+
+        provider = MagicMock()
+        provider.dispatch_due.return_value = {
+            "selected": 1,
+            "prepared": 0,
+            "autonomous_prepared": 1,
+            "failed": 0,
+            "completed": 0,
+            "coalesced": 0,
+            "duplicates": 0,
+            "deferred": 0,
+            "campaign_ids": ["campaign-1"],
+            "operator_actions": [],
+            "refreshed": {
+                "checked": 1,
+                "accepted": 1,
+                "uncertain": 0,
+                "failed": 0,
+                "skipped": 0,
+            },
+        }
+        registry = MagicMock()
+        registry.has_capability.return_value = True
+        database = SimpleNamespace(SessionLocal=session_scope)
+
+        with (
+            patch("govoplan_core.celery_app._platform_registry", return_value=registry),
+            patch("govoplan_core.celery_app._campaign_schedules", return_value=provider),
+            patch(
+                "govoplan_core.celery_app._worker_admissions",
+                side_effect=allowed_worker_admissions,
+            ),
+            patch("govoplan_core.db.session.get_database", return_value=database),
+        ):
+            result = dispatch_campaign_schedules.run("tenant-1", 17)
+
+        provider.dispatch_due.assert_called_once_with(
+            session,
+            tenant_id="tenant-1",
+            limit=17,
+        )
+        session.commit.assert_called_once_with()
+        self.assertEqual(result["autonomous_prepared"], 1)
+        self.assertEqual(result["refreshed"]["accepted"], 1)
+
+    def test_missing_provider_returns_complete_autonomous_defaults(self) -> None:
+        session = MagicMock()
+
+        @contextmanager
+        def session_scope():
+            yield session
+
+        registry = MagicMock()
+        registry.has_capability.return_value = False
+        database = SimpleNamespace(SessionLocal=session_scope)
+
+        with (
+            patch("govoplan_core.celery_app._platform_registry", return_value=registry),
+            patch("govoplan_core.db.session.get_database", return_value=database),
+        ):
+            result = dispatch_campaign_schedules.run("tenant-1", 17)
+
+        self.assertEqual(result["autonomous_prepared"], 0)
+        self.assertEqual(result["duplicates"], 0)
+        self.assertEqual(result["deferred"], 0)
+        self.assertEqual(
+            result["refreshed"],
+            {
+                "checked": 0,
+                "accepted": 0,
+                "uncertain": 0,
+                "failed": 0,
+                "skipped": 0,
+            },
+        )
+
+    def test_worker_route_and_periodic_dispatch_are_registered(self) -> None:
+        self.assertEqual(
+            celery.conf.task_routes["govoplan.campaigns.dispatch_schedules"],
+            {"queue": "default"},
+        )
+        schedule = celery.conf.beat_schedule["campaign-schedules-every-minute"]
+        self.assertEqual(schedule["task"], "govoplan.campaigns.dispatch_schedules")
+        self.assertEqual(schedule["schedule"], 60.0)
+
+
+if __name__ == "__main__":
+    unittest.main()
@@ -48,6 +48,10 @@ class ConditionalRequestTests(unittest.TestCase):
            self.assertIn("private", first.headers.get("cache-control", ""))
            self.assertIn("no-cache", first.headers.get("cache-control", ""))
            self.assertIn("authorization", first.headers.get("vary", "").lower())
+            self.assertIn(
+                "x-govoplan-validity-mode",
+                first.headers.get("vary", "").lower(),
+            )
            self.assertEqual("request-1", first.headers["X-Correlation-ID"])

            second = client.get("/json", headers={"If-None-Match": etag or "", "X-Request-ID": "request-2"})
@@ -56,6 +60,20 @@ class ConditionalRequestTests(unittest.TestCase):
            self.assertEqual(etag, second.headers.get("etag"))
            self.assertEqual("request-2", second.headers["X-Correlation-ID"])

+            historical = client.get(
+                "/json",
+                headers={
+                    "X-Govoplan-Validity-Mode": "at",
+                    "X-Govoplan-Valid-At": "2025-02-03T10:30:00Z",
+                },
+            )
+            self.assertEqual(200, historical.status_code, historical.text)
+            self.assertEqual("at", historical.headers["X-Govoplan-Validity-Mode"])
+            self.assertIn(
+                "x-govoplan-valid-at",
+                historical.headers.get("vary", "").lower(),
+            )
+
    def test_changed_json_body_does_not_match_previous_etag(self) -> None:
        with self._client() as client:
            first = client.get("/json?value=alpha")
@@ -184,6 +184,12 @@ class DatabaseMigrationTests(unittest.TestCase):
                    system_settings_count = connection.execute(
                        text("SELECT COUNT(*) FROM core_system_settings WHERE id = 'global'"),
                    ).scalar_one()
+                    default_locale = connection.execute(
+                        text(
+                            "SELECT default_locale FROM core_system_settings "
+                            "WHERE id = 'global'"
+                        ),
+                    ).scalar_one()
                    current = database_migration_heads(connection)

                self.assertEqual(
@@ -204,6 +210,7 @@ class DatabaseMigrationTests(unittest.TestCase):
                self.assertIn("file_assets", tables)
                self.assertIn("mail_server_profiles", tables)
                self.assertEqual(system_settings_count, 1)
+                self.assertEqual(default_locale, "de")
                self.assertEqual(
                    role_flags,
                    {"system_owner": True, "system_admin": False, "system_auditor": False},
@@ -211,6 +218,42 @@ class DatabaseMigrationTests(unittest.TestCase):
            finally:
                engine.dispose()

+    def test_german_reference_migration_preserves_explicit_english(self) -> None:
+        with tempfile.TemporaryDirectory(prefix="govoplan-locale-migration-test-") as directory:
+            database = Path(directory) / "locale.db"
+            url = f"sqlite:///{database}"
+            config = alembic_config(database_url=url, enabled_modules=())
+            command.upgrade(config, "f25c9d3e7a01")
+
+            engine = create_engine(url)
+            try:
+                with engine.begin() as connection:
+                    connection.execute(
+                        text(
+                            "UPDATE core_system_settings "
+                            "SET default_locale = 'en', "
+                            "updated_at = '2040-01-01 00:00:00' "
+                            "WHERE id = 'global'"
+                        )
+                    )
+            finally:
+                engine.dispose()
+
+            command.upgrade(config, "heads")
+
+            engine = create_engine(url)
+            try:
+                with engine.connect() as connection:
+                    default_locale = connection.execute(
+                        text(
+                            "SELECT default_locale FROM core_system_settings "
+                            "WHERE id = 'global'"
+                        )
+                    ).scalar_one()
+                self.assertEqual(default_locale, "en")
+            finally:
+                engine.dispose()
+
    def test_default_module_baselines_apply_to_fresh_database(self) -> None:
        with tempfile.TemporaryDirectory(prefix="govoplan-default-baseline-test-") as directory:
            database = Path(directory) / "default.db"
@@ -3,11 +3,14 @@ from __future__ import annotations
 import unittest

 from govoplan_core.core.datasources import (
+    CAPABILITY_DATASOURCE_ARTIFACT_BACKENDS,
    CAPABILITY_DATASOURCE_CATALOGUE,
    CAPABILITY_DATASOURCE_LIFECYCLE,
    CAPABILITY_DATASOURCE_ORIGINS,
    CAPABILITY_DATASOURCE_PUBLICATION,
+    CAPABILITY_POLICY_DATASOURCE_VISIBILITY,
    DatasourceCatalogueProvider,
+    DatasourceArtifactBackendProvider,
    DatasourceDescriptor,
    DatasourceField,
    DatasourceLifecycleProvider,
@@ -19,10 +22,14 @@ from govoplan_core.core.datasources import (
    DatasourcePublicationResult,
    DatasourceReadResult,
    DatasourceStage,
+    DatasourceVisibilityPolicyDecision,
+    DatasourceVisibilityPolicyProvider,
    datasource_catalogue,
+    datasource_artifact_backend_provider,
    datasource_lifecycle,
    datasource_origins,
    datasource_publication,
+    datasource_visibility_policy_provider,
 )
 from govoplan_core.core.modules import ModuleContext, ModuleManifest
 from govoplan_core.core.registry import PlatformRegistry
@@ -155,6 +162,13 @@ class _Provider:
            truncated=False,
        )

+    def artifact_backends(self):
+        return ()
+
+    def decide_datasource_visibility(self, session, *, request):
+        del session, request
+        return DatasourceVisibilityPolicyDecision(allowed=True)
+

 class DatasourceContractTests(unittest.TestCase):
    def test_capabilities_are_runtime_checkable_and_resolved_without_modules(self) -> None:
@@ -163,6 +177,8 @@ class DatasourceContractTests(unittest.TestCase):
        self.assertIsInstance(provider, DatasourceLifecycleProvider)
        self.assertIsInstance(provider, DatasourcePublicationProvider)
        self.assertIsInstance(provider, DatasourceOriginProvider)
+        self.assertIsInstance(provider, DatasourceArtifactBackendProvider)
+        self.assertIsInstance(provider, DatasourceVisibilityPolicyProvider)
        registry = PlatformRegistry()
        registry.register(
            ModuleManifest(
@@ -174,6 +190,8 @@ class DatasourceContractTests(unittest.TestCase):
                    CAPABILITY_DATASOURCE_LIFECYCLE: lambda context: provider,
                    CAPABILITY_DATASOURCE_PUBLICATION: lambda context: provider,
                    CAPABILITY_DATASOURCE_ORIGINS: lambda context: provider,
+                    CAPABILITY_DATASOURCE_ARTIFACT_BACKENDS: lambda context: provider,
+                    CAPABILITY_POLICY_DATASOURCE_VISIBILITY: lambda context: provider,
                },
            )
        )
@@ -183,6 +201,8 @@ class DatasourceContractTests(unittest.TestCase):
        self.assertIs(provider, datasource_lifecycle(registry))
        self.assertIs(provider, datasource_publication(registry))
        self.assertIs(provider, datasource_origins(registry))
+        self.assertIs(provider, datasource_artifact_backend_provider(registry))
+        self.assertIs(provider, datasource_visibility_policy_provider(registry))
        self.assertIsNone(datasource_catalogue(PlatformRegistry()))

    def test_descriptor_distinguishes_mode_kind_shape_and_materialization(self) -> None:
@@ -0,0 +1,162 @@
+from __future__ import annotations
+
+from types import SimpleNamespace
+import unittest
+from unittest.mock import patch
+
+from fastapi import FastAPI
+from fastapi.testclient import TestClient
+from sqlalchemy import create_engine
+from sqlalchemy.orm import sessionmaker
+from sqlalchemy.pool import StaticPool
+
+from govoplan_core.auth import ApiPrincipal, get_api_principal
+from govoplan_core.core.access import PrincipalRef
+from govoplan_core.core.dsar import DsarRecordRef
+from govoplan_core.db.base import Base
+from govoplan_core.db.session import get_session
+from govoplan_core.privacy.dsar_workflow import DataSubjectRequest
+from govoplan_core.server.dsar import router
+
+
+class _Provider:
+    provider_id = "example"
+    module_id = "example"
+
+    def search_subject(self, session, *, tenant_id, subject):
+        del session, tenant_id, subject
+        return (
+            DsarRecordRef(
+                provider_id="example",
+                module_id="example",
+                resource_type="profile",
+                resource_id="profile-1",
+                category="profile",
+                title="Example profile",
+            ),
+        )
+
+    def plan_erasure(self, session, *, tenant_id, subject, records):
+        del session, tenant_id, subject, records
+        return ()
+
+    def execute_erasure(self, session, *, tenant_id, subject, actions, request_id):
+        del session, tenant_id, subject, actions, request_id
+        return ()
+
+
+class _Registry:
+    provider = _Provider()
+
+    def capability_names(self):
+        return ("privacy.dsar.example",)
+
+    def require_tenant_capability(self, name, session, **kwargs):
+        del name, session, kwargs
+        return self.provider
+
+    def manifests(self):
+        return (SimpleNamespace(id="example"),)
+
+
+class DsarApiTests(unittest.TestCase):
+    def setUp(self) -> None:
+        self.engine = create_engine(
+            "sqlite+pysqlite://",
+            connect_args={"check_same_thread": False},
+            poolclass=StaticPool,
+        )
+        DataSubjectRequest.__table__.create(self.engine)
+        self.session = sessionmaker(bind=self.engine, expire_on_commit=False)()
+        self.principal = _principal(
+            "access:privacy:read",
+            "access:privacy:manage",
+            "access:privacy:export",
+            "access:privacy:erase",
+        )
+        app = FastAPI()
+        app.state.govoplan_registry = _Registry()
+        app.include_router(router, prefix="/api/v1")
+        app.dependency_overrides[get_session] = lambda: self.session
+        app.dependency_overrides[get_api_principal] = lambda: self.principal
+        self.audit_patch = patch("govoplan_core.server.dsar.audit_event")
+        self.audit_patch.start()
+        self.client = TestClient(app)
+
+    def tearDown(self) -> None:
+        self.client.close()
+        self.audit_patch.stop()
+        self.session.close()
+        Base.metadata.drop_all(self.engine, tables=[DataSubjectRequest.__table__])
+        self.engine.dispose()
+
+    def test_mutation_requires_strong_revision_and_export_is_available(self) -> None:
+        created = self.client.post(
+            "/api/v1/admin/privacy/data-subject-requests",
+            json={
+                "reference": "DSAR-1",
+                "request_kind": "access",
+                "subject": {"email": "ada@example.test"},
+                "purpose": "Verified access request",
+            },
+        )
+        self.assertEqual(201, created.status_code, created.text)
+        item = created.json()["request"]
+
+        missing = self.client.post(
+            f"/api/v1/admin/privacy/data-subject-requests/{item['id']}/search",
+            json={"base_revision": item["resource_revision"]},
+        )
+        self.assertEqual(428, missing.status_code, missing.text)
+
+        searched = self.client.post(
+            f"/api/v1/admin/privacy/data-subject-requests/{item['id']}/search",
+            headers={"If-Match": item["etag"]},
+            json={"base_revision": item["resource_revision"]},
+        )
+        self.assertEqual(200, searched.status_code, searched.text)
+        self.assertEqual(1, searched.json()["search"]["record_count"])
+
+        stale = self.client.post(
+            f"/api/v1/admin/privacy/data-subject-requests/{item['id']}/search",
+            headers={"If-Match": item["etag"]},
+            json={"base_revision": item["resource_revision"]},
+        )
+        self.assertEqual(409, stale.status_code, stale.text)
+
+        exported = self.client.get(
+            f"/api/v1/admin/privacy/data-subject-requests/{item['id']}/export"
+        )
+        self.assertEqual(200, exported.status_code, exported.text)
+        self.assertIn("govoplan.dsars.export.v1", exported.text)
+
+    def test_privacy_scopes_are_independent(self) -> None:
+        self.principal = _principal("access:privacy:read")
+        denied = self.client.post(
+            "/api/v1/admin/privacy/data-subject-requests",
+            json={
+                "reference": "DSAR-2",
+                "request_kind": "access",
+                "subject": {"email": "ada@example.test"},
+                "purpose": "Verified access request",
+            },
+        )
+        self.assertEqual(403, denied.status_code, denied.text)
+        self.assertEqual(200, self.client.get("/api/v1/admin/privacy/data-subject-requests").status_code)
+
+
+def _principal(*scopes: str) -> ApiPrincipal:
+    return ApiPrincipal(
+        principal=PrincipalRef(
+            account_id="account-operator",
+            membership_id="membership-operator",
+            tenant_id="tenant-1",
+            scopes=frozenset(scopes),
+        ),
+        account=SimpleNamespace(id="account-operator"),
+        user=SimpleNamespace(id="membership-operator"),
+    )
+
+
+if __name__ == "__main__":
+    unittest.main()
@@ -0,0 +1,236 @@
+from __future__ import annotations
+
+import json
+import unittest
+
+from sqlalchemy import create_engine
+from sqlalchemy.orm import Session, sessionmaker
+from sqlalchemy.pool import StaticPool
+
+from govoplan_core.core.concurrency import RevisionConflictError
+from govoplan_core.core.dsar import (
+    DsarErasureActionRef,
+    DsarExecutionResultRef,
+    DsarRecordRef,
+    DsarSubjectRef,
+)
+from govoplan_core.db.base import Base
+from govoplan_core.privacy.dsar_workflow import (
+    DataSubjectRequest,
+    create_data_subject_request,
+    data_subject_export,
+    execute_data_subject_erasure,
+    plan_data_subject_erasure,
+    search_data_subject_request,
+)
+
+
+class _Provider:
+    provider_id = "example"
+    module_id = "example"
+
+    def __init__(self) -> None:
+        self.executions = 0
+
+    def search_subject(self, session, *, tenant_id, subject):
+        del session, tenant_id, subject
+        return (
+            DsarRecordRef(
+                provider_id=self.provider_id,
+                module_id=self.module_id,
+                resource_type="profile",
+                resource_id="profile-1",
+                category="personal",
+                title="Example profile",
+                data={"name": "Ada"},
+            ),
+            DsarRecordRef(
+                provider_id=self.provider_id,
+                module_id=self.module_id,
+                resource_type="audit_evidence",
+                resource_id="event-1",
+                category="evidence",
+                title="Decision event",
+                immutable_evidence=True,
+                retention_reason="Required decision evidence.",
+            ),
+        )
+
+    def plan_erasure(self, session, *, tenant_id, subject, records):
+        del session, tenant_id, subject, records
+        return (
+            DsarErasureActionRef(
+                action_id="example:anonymize:profile-1",
+                provider_id=self.provider_id,
+                module_id=self.module_id,
+                kind="anonymize",
+                resource_type="profile",
+                resource_id="profile-1",
+                title="Anonymize profile",
+                rationale="Remove profile data.",
+                executable=True,
+                irreversible=True,
+            ),
+        )
+
+    def execute_erasure(self, session, *, tenant_id, subject, actions, request_id):
+        del session, tenant_id, subject, request_id
+        self.executions += 1
+        return tuple(
+            DsarExecutionResultRef(
+                action_id=action.action_id,
+                status="executed",
+                summary="Profile anonymized.",
+            )
+            for action in actions
+        )
+
+
+class _Registry:
+    def __init__(self, provider: _Provider) -> None:
+        self.provider = provider
+
+    def capability_names(self):
+        return ("privacy.dsar.example", "privacy.dsar.inactive")
+
+    def capability_owner(self, name):
+        return {
+            "privacy.dsar.example": "example",
+            "privacy.dsar.inactive": "inactive",
+        }[name]
+
+    def tenant_entitlement_resolver(self):
+        class _Resolver:
+            @staticmethod
+            def resolve(session, tenant_id):
+                del session, tenant_id
+                return type(
+                    "State",
+                    (),
+                    {"effective_modules": ("example", "without-provider")},
+                )()
+
+        return _Resolver()
+
+    def require_tenant_capability(self, name, session, **kwargs):
+        del name, session, kwargs
+        return self.provider
+
+    def manifests(self):
+        return (
+            type("Manifest", (), {"id": "example"})(),
+            type("Manifest", (), {"id": "without-provider"})(),
+        )
+
+
+class DsarWorkflowTests(unittest.TestCase):
+    def setUp(self) -> None:
+        self.engine = create_engine(
+            "sqlite+pysqlite://",
+            connect_args={"check_same_thread": False},
+            poolclass=StaticPool,
+        )
+        DataSubjectRequest.__table__.create(self.engine)
+        self.session: Session = sessionmaker(
+            bind=self.engine,
+            expire_on_commit=False,
+        )()
+        self.provider = _Provider()
+        self.registry = _Registry(self.provider)
+
+    def tearDown(self) -> None:
+        self.session.close()
+        Base.metadata.drop_all(self.engine, tables=[DataSubjectRequest.__table__])
+        self.engine.dispose()
+
+    def test_search_plan_export_and_idempotent_execution(self) -> None:
+        row = create_data_subject_request(
+            self.session,
+            tenant_id="tenant-1",
+            reference="DSAR-2026-001",
+            request_kind="access_and_erasure",
+            subject=DsarSubjectRef(email="ada@example.test"),
+            purpose="Respond to a verified data-subject request.",
+            legal_basis="Article 15 and 17 GDPR",
+            due_at=None,
+            requested_by_account_id="account-operator",
+        )
+        self.session.commit()
+
+        search_data_subject_request(
+            self.session,
+            registry=self.registry,
+            row=row,
+            expected_revision=1,
+        )
+        self.assertEqual("searched", row.status)
+        self.assertEqual(2, row.search_result["record_count"])
+        self.assertEqual(["without-provider"], row.coverage["modules_without_provider"])
+        self.assertEqual(
+            ["privacy.dsar.inactive"],
+            row.coverage["inactive_provider_capabilities"],
+        )
+
+        plan_data_subject_erasure(
+            self.session,
+            registry=self.registry,
+            row=row,
+            expected_revision=2,
+        )
+        actions = row.erasure_plan["actions"]
+        self.assertEqual(2, len(actions))
+        self.assertEqual(1, row.erasure_plan["retained_count"])
+        executable_id = next(item["action_id"] for item in actions if item["executable"])
+
+        execute_data_subject_erasure(
+            self.session,
+            registry=self.registry,
+            row=row,
+            expected_revision=3,
+            action_ids=[executable_id],
+        )
+        self.assertEqual("completed", row.status)
+        self.assertEqual(1, self.provider.executions)
+
+        export = json.loads(data_subject_export(row))
+        self.assertEqual("govoplan.dsars.export.v1", export["schema"])
+        self.assertEqual("DSAR-2026-001", export["request"]["reference"])
+        self.assertEqual(64, len(export["manifest_sha256"]))
+
+        with self.assertRaises(RevisionConflictError):
+            search_data_subject_request(
+                self.session,
+                registry=self.registry,
+                row=row,
+                expected_revision=1,
+            )
+
+    def test_access_only_request_cannot_create_erasure_plan(self) -> None:
+        row = create_data_subject_request(
+            self.session,
+            tenant_id="tenant-1",
+            reference="DSAR-2026-002",
+            request_kind="access",
+            subject=DsarSubjectRef(account_id="account-1"),
+            purpose="Provide access information.",
+            legal_basis=None,
+            due_at=None,
+            requested_by_account_id="account-operator",
+        )
+        search_data_subject_request(
+            self.session,
+            registry=self.registry,
+            row=row,
+            expected_revision=1,
+        )
+        with self.assertRaisesRegex(ValueError, "does not include erasure"):
+            plan_data_subject_erasure(
+                self.session,
+                registry=self.registry,
+                row=row,
+                expected_revision=2,
+            )
+
+
+if __name__ == "__main__":
+    unittest.main()
@@ -0,0 +1,90 @@
+from __future__ import annotations
+
+import unittest
+from datetime import UTC, datetime
+
+from govoplan_core.core.files import (
+    CAPABILITY_FILES_TABULAR_CONTENT,
+    ManagedTabularFile,
+    ManagedTabularFileContent,
+    ManagedTabularFileProvider,
+    managed_tabular_file_provider,
+)
+
+
+class _Provider:
+    def list_tabular_files(self, session, principal, *, query="", limit=100):
+        del session, principal, query, limit
+        return ()
+
+    def get_tabular_file(
+        self,
+        session,
+        principal,
+        *,
+        file_asset_id,
+        file_version_id=None,
+    ):
+        del session, principal, file_asset_id, file_version_id
+        return None
+
+    def read_tabular_file(
+        self,
+        session,
+        principal,
+        *,
+        file_asset_id,
+        file_version_id,
+        max_bytes,
+    ):
+        del session, principal, file_asset_id, file_version_id, max_bytes
+        file = ManagedTabularFile(
+            file_asset_id="asset-1",
+            file_version_id="version-1",
+            filename="source.csv",
+            display_path="Imports/source.csv",
+            content_type="text/csv",
+            size_bytes=8,
+            sha256="a" * 64,
+            updated_at=datetime(2026, 8, 21, tzinfo=UTC),
+        )
+        return ManagedTabularFileContent(file=file, payload=b"id\n1\n")
+
+
+class _Registry:
+    def __init__(self, provider):
+        self.provider = provider
+
+    def has_capability(self, name):
+        return name == CAPABILITY_FILES_TABULAR_CONTENT
+
+    def require_capability(self, name):
+        if not self.has_capability(name):
+            raise KeyError(name)
+        return self.provider
+
+
+class ManagedTabularFileContractTests(unittest.TestCase):
+    def test_runtime_protocol_and_registry_resolution(self) -> None:
+        provider = _Provider()
+
+        self.assertIsInstance(provider, ManagedTabularFileProvider)
+        self.assertIs(provider, managed_tabular_file_provider(_Registry(provider)))
+        self.assertIsNone(managed_tabular_file_provider(None))
+
+    def test_exact_version_content_retains_safe_metadata(self) -> None:
+        result = _Provider().read_tabular_file(
+            object(),
+            object(),
+            file_asset_id="asset-1",
+            file_version_id="version-1",
+            max_bytes=100,
+        )
+
+        self.assertEqual("version-1", result.file.file_version_id)
+        self.assertEqual("a" * 64, result.file.sha256)
+        self.assertEqual(b"id\n1\n", result.payload)
+
+
+if __name__ == "__main__":
+    unittest.main()
@@ -0,0 +1,122 @@
+from __future__ import annotations
+
+from datetime import UTC, datetime, timedelta
+import unittest
+
+from govoplan_core.core.form_evidence import (
+    FormEvidenceContractError,
+    FormEvidenceGrantRequest,
+    FormEvidenceInspection,
+    FormEvidenceInspectionRequest,
+    form_evidence_capability,
+    form_evidence_provider,
+)
+from govoplan_core.core.institutional import EvidenceReference, InstitutionalReference
+
+
+NOW = datetime(2026, 8, 7, 9, 0, tzinfo=UTC)
+
+
+class Provider:
+    provider_id = "files"
+
+    def supported_kinds(self):
+        return ("document",)
+
+    def create_upload_grant(self, session, principal, *, request):
+        raise NotImplementedError
+
+    def inspect_evidence(self, session, principal, *, request):
+        return FormEvidenceInspection(
+            provider_id=self.provider_id,
+            reference=request.evidence,
+            state="accepted",
+            observed_at=NOW,
+        )
+
+
+class Registry:
+    def __init__(self) -> None:
+        self.provider = Provider()
+
+    def has_capability(self, name: str) -> bool:
+        return name == "forms_runtime.evidence.files"
+
+    def require_capability(self, name: str):
+        return self.provider
+
+
+class FormEvidenceContractTests(unittest.TestCase):
+    def setUp(self) -> None:
+        self.definition = InstitutionalReference(
+            kind="form",
+            owner_module="forms",
+            object_id="permit",
+            tenant_id="tenant-1",
+            version="2",
+        )
+        self.evidence = EvidenceReference(
+            kind="document",
+            owner_module="files",
+            evidence_id="asset-1",
+            tenant_id="tenant-1",
+            version="version-3",
+            checksum="a" * 64,
+        )
+
+    def test_grants_and_inspections_are_exact_and_tenant_bound(self) -> None:
+        grant = FormEvidenceGrantRequest(
+            tenant_id="tenant-1",
+            instance_id="form-1",
+            definition_ref=self.definition,
+            evidence_kind="document",
+            purpose="attach application evidence",
+            idempotency_key="grant-1",
+            expires_at=NOW + timedelta(minutes=10),
+            max_size_bytes=1024,
+        )
+        inspection = FormEvidenceInspectionRequest(
+            tenant_id="tenant-1",
+            instance_id="form-1",
+            definition_ref=self.definition,
+            evidence=self.evidence,
+            purpose="submit application",
+            final=True,
+        )
+
+        self.assertEqual("2", grant.definition_ref.version)
+        self.assertEqual("version-3", inspection.evidence.version)
+
+    def test_cross_tenant_evidence_is_rejected(self) -> None:
+        with self.assertRaisesRegex(FormEvidenceContractError, "cross tenants"):
+            FormEvidenceInspectionRequest(
+                tenant_id="tenant-2",
+                instance_id="form-1",
+                definition_ref=self.definition,
+                evidence=self.evidence,
+                purpose="submit",
+                final=True,
+            )
+
+    def test_provider_resolution_is_optional_and_runtime_checked(self) -> None:
+        registry = Registry()
+        self.assertEqual(
+            "forms_runtime.evidence.files",
+            form_evidence_capability("files"),
+        )
+        self.assertIs(registry.provider, form_evidence_provider(registry, "files"))
+        self.assertIsNone(form_evidence_provider(registry, "missing"))
+
+    def test_accepted_evidence_is_not_retryable(self) -> None:
+        with self.assertRaisesRegex(FormEvidenceContractError, "cannot require"):
+            FormEvidenceInspection(
+                provider_id="files",
+                reference=self.evidence,
+                state="accepted",
+                observed_at=NOW,
+                retryable=True,
+            )
+
+
+if __name__ == "__main__":
+    unittest.main()
@@ -0,0 +1,61 @@
+from __future__ import annotations
+
+import unittest
+
+from govoplan_core.core.access import (
+    AccessGovernanceProjectionV1,
+    GovernanceProjectionBatch,
+    GovernanceProjectionCommand,
+    GovernanceProjectionResult,
+    GovernanceTemplateMaterialization,
+)
+
+
+def _command(assignment_id: str) -> GovernanceProjectionCommand:
+    return GovernanceProjectionCommand(
+        assignment_id=assignment_id,
+        operation="upsert",
+        template=GovernanceTemplateMaterialization(
+            template_id="template-1",
+            kind="role",
+            tenant_id=f"tenant-{assignment_id}",
+            slug="reader",
+            name="Reader",
+        ),
+        provenance={"source": "contract-test"},
+    )
+
+
+class _Projection:
+    def reconcile(self, session: object, batch: GovernanceProjectionBatch) -> GovernanceProjectionResult:
+        del session
+        return GovernanceProjectionResult(
+            operation_id=batch.operation_id,
+            outcomes=(),
+            dry_run=batch.dry_run,
+        )
+
+
+class GovernanceProjectionContractTests(unittest.TestCase):
+    def test_protocol_is_runtime_checkable(self) -> None:
+        self.assertIsInstance(_Projection(), AccessGovernanceProjectionV1)
+
+    def test_batch_rejects_duplicate_assignment_ids(self) -> None:
+        with self.assertRaisesRegex(ValueError, "unique"):
+            GovernanceProjectionBatch(
+                operation_id="duplicate",
+                commands=(_command("same"), _command("same")),
+            )
+
+    def test_batch_enforces_bounds(self) -> None:
+        with self.assertRaisesRegex(ValueError, "between 1 and 500"):
+            GovernanceProjectionBatch(operation_id="empty", commands=())
+        with self.assertRaisesRegex(ValueError, "between 1 and 500"):
+            GovernanceProjectionBatch(
+                operation_id="large",
+                commands=tuple(_command(str(index)) for index in range(501)),
+            )
+
+
+if __name__ == "__main__":
+    unittest.main()
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
zemion	0ca6568005	chore(release): load Campaign 0.1.21 Module Package Release / publish-packages (push) Successful in 12s Details	2026-08-22 00:54:00 +02:00
zemion	af90db44c9	chore(webui): load Campaign collaboration release Module Package Release / publish-packages (push) Successful in 12s Details	2026-08-22 00:18:06 +02:00
zemion	5de46e9c0e	chore(webui): load Files folder sync release Module Package Release / publish-packages (push) Successful in 12s Details	2026-08-21 22:50:48 +02:00
zemion	1d9b677c1b	chore(webui): load IDM relationship administration release Module Package Release / publish-packages (push) Successful in 12s Details	2026-08-21 22:06:29 +02:00
zemion	54178ee56c	chore(webui): load Access credential help release Module Package Release / publish-packages (push) Successful in 12s Details	2026-08-21 21:15:31 +02:00
zemion	10e7597612	feat(core): define datasource visibility policy contract Module Package Release / publish-packages (push) Failing after 6s Details	2026-08-21 20:31:51 +02:00
zemion	142ccbc587	feat(core): define managed tabular file contract Module Package Release / publish-packages (push) Successful in 12s Details	2026-08-21 19:29:48 +02:00
zemion	f75ad48d78	test(core): isolate entitlement navigation fixture	2026-08-21 19:26:00 +02:00
zemion	5a9e8f79f9	test(webui): cover contextual help in the browser	2026-08-21 17:36:06 +02:00
zemion	fbea74a74b	feat(core): define durable datasource artifact contract	2026-08-21 17:36:05 +02:00
zemion	925dc33696	feat(docs): define semantic subject contract	2026-08-21 14:55:58 +02:00
zemion	4b0737e1cd	feat: support autonomous campaign schedule results	2026-08-20 21:10:04 +02:00
zemion	4f4007aff1	feat: define policy impact subject contract	2026-08-20 20:27:17 +02:00
zemion	8e687c4420	feat: define bulk governance projection contract	2026-08-20 19:46:53 +02:00
zemion	604f20eed7	feat: classify audit evidence export scope	2026-08-20 18:00:18 +02:00
zemion	6a2da94e47	feat: load connector governance webui	2026-08-20 12:46:01 +02:00
zemion	e121ca900e	feat: load identity administration webui	2026-08-20 12:27:37 +02:00
zemion	79629c5a2c	feat: define campaign archive encryption policy contract	2026-08-20 12:12:27 +02:00
zemion	026e451aa4	feat: configure scheduling self-enrollment limits	2026-08-20 11:45:07 +02:00
zemion	f11c675d11	feat: govern accessible appearance overrides	2026-08-20 10:50:55 +02:00
zemion	0fae09ba3c	feat: extend calendar scheduling reconciliation contract	2026-08-20 07:44:16 +02:00
zemion	8f642bd618	feat: govern effective appearance defaults	2026-08-20 07:03:28 +02:00
zemion	6643c8fc1e	feat: add validated appearance palettes	2026-08-20 06:26:52 +02:00
zemion	fd90b60430	feat: centralize access explanation subject selection	2026-08-20 06:16:43 +02:00
zemion	0aae6f0539	feat(postbox): schedule lifecycle notification reconciliation	2026-08-20 04:58:35 +02:00
zemion	be7b79612c	feat(postbox): expose governed grouping policy	2026-08-20 04:22:29 +02:00
zemion	557c77670b	feat(postbox): expose configurable protection contracts	2026-08-20 03:42:58 +02:00
zemion	d277218784	feat(webui): preserve state in shared widget launches	2026-08-20 02:39:41 +02:00
zemion	cf16a7b27a	feat(core): add layered side rail preferences	2026-08-20 01:47:04 +02:00
zemion	51bf14f376	docs(core): define collaboration connector strategy	2026-08-19 23:15:35 +02:00
zemion	8d9bcfd8b5	test(core): prove Views cannot grant access	2026-08-19 22:55:19 +02:00
zemion	3c7a593f63	feat(templates): carry content field requirements	2026-08-19 21:54:51 +02:00
zemion	9d1352ba30	feat(mail): define standard IMAP folder mappings	2026-08-19 21:27:42 +02:00
zemion	4cf2bfeb3e	feat(operations): add runtime work status contract	2026-08-19 20:52:44 +02:00
zemion	94c94fefb4	test(webui): cover View-focused Quick Access catalogues	2026-08-19 20:14:02 +02:00
zemion	d600bca374	test: make full discovery optional-state independent	2026-08-19 19:20:05 +02:00
zemion	ffaab543d2	feat(webui): govern actions, quick access, and metrics Refs #264, #285, #289	2026-08-19 18:47:46 +02:00
zemion	41db78c201	Define semantic page archetypes	2026-08-19 14:26:25 +02:00
zemion	c042244da8	Define semantic page action layouts	2026-08-19 13:33:51 +02:00
zemion	5a2e99f496	feat: add status and payment capability contracts	2026-08-19 12:33:34 +02:00
zemion	8a925782ab	feat: add UI conformance and launch context	2026-08-18 21:32:25 +02:00
zemion	7685a103e8	Centralize shared WebUI structural primitives	2026-08-18 13:17:31 +02:00
zemion	ee5c881df9	Centralize metric and description layouts	2026-08-18 11:30:39 +02:00
zemion	6814a41ae4	Add shared WebUI layout primitives	2026-08-18 10:42:55 +02:00
zemion	dd7ad4d9c7	feat: add shared workspace layouts	2026-08-18 02:17:13 +02:00
zemion	934db6d44b	feat: centralize shared page layouts	2026-08-18 01:03:33 +02:00
zemion	d307e29145	feat: add exact credential help contexts	2026-08-17 19:51:51 +02:00
zemion	ff88142471	feat: add exact retention help contexts	2026-08-17 17:41:45 +02:00
zemion	887e9beb9e	docs: update meta documentation links	2026-08-17 16:52:53 +02:00
zemion	e6457b3f6b	feat: add governed DSAR workflow	2026-08-07 14:53:07 +02:00
zemion	eb0c01c5d2	feat: expose typed deployment capability receipts	2026-08-07 11:15:49 +02:00
zemion	40cc012124	feat(modules): validate catalog permission declarations	2026-08-07 01:59:24 +02:00
zemion	44196f5620	Validate module catalog provenance and availability	2026-08-06 22:42:08 +02:00
zemion	9ceb1b8c22	Add trusted public module catalog installs	2026-08-06 21:12:54 +02:00
zemion	32c234fbdb	Add product presentation extension contracts	2026-08-06 19:02:53 +02:00
zemion	d65d7a8e5f	Add shared work-item provider contracts	2026-08-06 16:06:17 +02:00
zemion	b5f5be15f6	Add governed form evidence contract	2026-08-06 12:42:20 +02:00
zemion	f5949427cc	feat(records): define archive transfer provider contract	2026-08-06 05:36:11 +02:00
zemion	5d1287735e	feat(core): add provider-neutral records filing contract	2026-08-06 01:43:08 +02:00
zemion	7ea0cb8655	Fix responsive DataGrid contraction	2026-08-05 22:42:21 +02:00
zemion	b553513c9f	Release v0.1.18 Module Package Release / publish-packages (push) Successful in 12s Details	2026-08-05 21:08:17 +02:00
zemion	b5a4eb177a	Release v0.1.17 Module Package Release / publish-packages (push) Successful in 12s Details	2026-08-05 20:34:47 +02:00
zemion	f1a5be2a93	Release v0.1.16 Module Package Release / publish-packages (push) Successful in 12s Details	2026-08-05 19:53:46 +02:00
zemion	add7a99f6d	feat: add temporal context and contextual help	2026-08-05 00:03:31 +02:00