feat: harden file sharing and integrity

README.md

@@ -137,6 +137,8 @@ manual interoperability testing.
 
 Connector and collaboration ownership boundaries are documented in
 `docs/CONNECTOR_BOUNDARY.md` and `docs/DOCUMENT_COLLABORATION_BOUNDARY.md`.
+The role-adaptive user, administration, integration, and operator guide is the
+[Files handbook](docs/FILES_HANDBOOK.md).
 
 ZIP uploads are processed without buffering the whole archive in memory. The API
 spools incoming ZIP request bodies to a bounded temporary file, then extracts

docs/FILES_HANDBOOK.md

@@ -0,0 +1,806 @@
+# GovOPlaN Files Handbook
+
+This handbook describes the Files module as implemented in version `0.1.9`.
+It is the operational source of truth for users, process owners, administrators,
+operators, auditors, and module integrators. Statements about future behavior
+are marked **planned**; an unmarked statement describes the current code.
+
+Files is a governed snapshot store. It owns managed file content, versions,
+logical folders, shares, source provenance, and the evidence that another
+GovOPlaN module used a particular file version. It can browse selected external
+stores read-only and import a frozen copy. It is not a general remote filesystem,
+a document collaboration engine, or a records-management system.
+
+## Choose a reading path
+
+| If you need to... | Start with... |
+| --- | --- |
+| Upload, find, organize, download, or import a file | [User tasks](#user-tasks) |
+| Design a governed process that uses files | [Process perspective](#process-perspective) |
+| Decide who can use a file or connector | [Ownership and access](#ownership-and-access) and [Administration and policy](#administration-and-policy) |
+| Operate storage, connectors, backups, or recovery | [Operator runbook](#operator-runbook) |
+| Integrate another GovOPlaN module | [Capabilities and integration](#capabilities-and-integration) |
+| Review evidence, deletion, or security behavior | [Security, provenance, audit, deletion, and retention](#security-provenance-audit-deletion-and-retention) |
+| Verify a release or scenario | [Acceptance scenarios](#acceptance-scenarios) |
+| Check whether an idea exists today | [Implemented and planned boundary](#implemented-and-planned-boundary) |
+
+## The service contract
+
+A managed file is a tenant-scoped logical asset with exactly one user or group
+owner, a normalized path, and a current version. The current version points to a
+blob record containing the storage location, SHA-256 checksum, byte size, and
+content type. Current service paths append a version when connector sync finds
+changed content; they do not mutate the previous version record.
+
+Content with the same tenant, SHA-256 checksum, and size can reuse one blob.
+This is storage deduplication and integrity evidence, not proof of authorship or
+source authenticity.
+
+The main domain objects are:
+
+| Object | Meaning | Lifecycle today |
+| --- | --- | --- |
+| File asset | The user-facing file identity, owner, logical path, description, metadata, and current version | Created, organized, shared, and soft-deleted |
+| File version | A numbered snapshot of one asset and its blob | Appended by connector sync when bytes change; retained |
+| File blob | Stored bytes plus checksum, size, backend, key, reference count, and optional retention timestamp | Reused within a tenant; no automated garbage collection |
+| Folder | An explicit logical path in a user or group space | Created, moved/renamed through organize operations, and soft-deleted |
+| Share | A grant from an asset to a user, group, tenant, or campaign with `read`, `write`, or `manage` permission | Created or updated; no public revocation endpoint yet |
+| Connector profile | A governed external endpoint, scope, optional credential link, policy, and descriptive capabilities | Created, updated, disabled, or credential-scrubbed on deletion |
+| Connector credential | Reusable authentication material, optionally limited to a provider and scope | Encrypted when database-managed; immediately scrubbed on deletion |
+| Connector policy | Allow and deny rules inherited from system through tenant to one leaf scope | Evaluated before configuration and connector use |
+| Connector space | A read-only, manually synchronized remote folder/library linked to a user or group space | Created, updated, disabled, and soft-deleted |
+| Campaign attachment use | Evidence connecting a campaign job or entry to an exact asset, version, blob, checksum, and stage | Retained for campaign execution evidence |
+
+## User tasks
+
+The Files page is available at `/files`. Actions appear only when the current
+principal has the required permission and resource access.
+
+The configured Help Center projects these sections as independently authorized
+tasks, so upload, ZIP import, organization, download, sharing, and deletion do
+not disappear merely because an unrelated permission is absent. It states the
+deployment's actual upload limits. External import appears as a task only when
+the actor has the required permissions and at least one actor-visible profile
+is eligible for the current fail-closed browse/import path; endpoint, path, and
+item policy are still enforced when the operation runs.
+
+### Choose a space
+
+Every file user sees **My files**. Group spaces are added for active groups of
+which the user is a member. The space list also exposes every tenant group to a
+Files administrator; governed API operations can administer other tenant-owned
+Files resources when their owner is specified. Linked connector spaces appear
+beside managed spaces when they are active and visible to the user.
+
+A connector space is intentionally read-only. It is a view of an approved
+remote location and a starting point for importing or synchronizing selected
+files into managed storage; it is not a mounted write-through filesystem.
+
+### Upload files
+
+The managed-space UI supports upload and drag-and-drop. A caller chooses the
+user or group owner and destination folder. The normal per-file deployment
+limit defaults to 50 MiB through `FILE_UPLOAD_MAX_BYTES`.
+
+When a target path already exists, the operation must use one of these conflict
+strategies:
+
+- `reject` stops instead of silently replacing content;
+- `rename` selects the next available `copy` name;
+- `overwrite` soft-deletes the conflicting asset and creates the new asset;
+- an item-specific conflict resolution can also `skip` that item.
+
+An ordinary upload does not append a new version to an existing asset. The
+`overwrite` strategy retires the old asset at that path. Version-preserving
+updates currently belong to connector sync.
+
+### Upload and unpack ZIP files
+
+The UI can unpack a ZIP upload. The request body is spooled to a bounded
+temporary file rather than buffered wholly in memory. The defaults are:
+
+- 250 MiB compressed request and total extracted data;
+- 50 MiB per extracted member;
+- 1,000 non-directory members;
+- encrypted archives are rejected;
+- member paths are normalized and `..` traversal is rejected;
+- the actual bytes read are counted, not only the ZIP header declarations.
+
+The byte limits use `FILE_UPLOAD_ZIP_MAX_BYTES` and
+`FILE_UPLOAD_MAX_BYTES`. The 1,000-member limit is currently fixed in the
+extraction service.
+
+### Organize files and folders
+
+With `files:file:organize`, a user can:
+
+- create logical folders;
+- rename one selection directly;
+- preview and apply bulk prefix, suffix, or replacement renames;
+- move or copy files and folder trees between accessible user/group spaces;
+- resolve target conflicts by rejecting, renaming, overwriting, or skipping;
+- use drag-and-drop for move operations in the file explorer.
+
+Copies create new assets and versions while reusing the immutable blob bytes.
+Moves keep the asset identity and change its owner/path. All source and target
+owners are validated; knowing an identifier does not bypass space membership.
+
+Recursive folder deletion is the default. It soft-deletes the selected folder,
+its child folders, and files below it. A non-recursive delete fails when the
+folder is not empty.
+
+### Find and download files
+
+Files can list by owner and path, use cursor pagination, and consume incremental
+changes through a watermark. The UI supports path/name pattern search and
+sorting. The pattern API can resolve campaign-style wildcard selections and can
+return unmatched files.
+
+A user with download permission and resource access can download one current
+version or create a ZIP archive from a selection. Downloads use an attachment
+content disposition. The archive is generated in a temporary file and removed
+after the response completes.
+
+There is no dedicated content-preview service in the Files API today. File
+responses expose content type, size, checksum, and current version metadata.
+
+### Share files
+
+The API can grant or update a share for a user, group, the tenant, or a campaign.
+The supported permissions are `read`, `write`, and `manage`. Ownership remains
+unchanged. A write operation accepts a `write` or `manage` share; read/download
+accepts any of the three.
+
+The current Files page shows campaign linkage but does not offer a general
+user/group share editor. The API also has no share-revocation route yet. Treat
+share revocation and a complete share-management UI as planned work.
+
+### Browse and import an external file
+
+With a visible connector profile, a user can browse the allowed remote path,
+select one file, and import it into an accessible managed space. The imported
+asset records the connector, provider, remote identity/path/URL, selected remote
+metadata, and source revision when supplied by the provider.
+
+Manual sync looks for an existing managed asset with the same source identity
+inside the chosen owner space:
+
+- no match creates a managed asset;
+- identical checksum and size updates provenance and returns `unchanged`;
+- changed bytes append a version and return `updated`.
+
+Browse, import, and sync never write, rename, or delete the remote source.
+
+## Process perspective
+
+### Managed ingestion
+
+The managed-file flow is:
+
+1. Core authenticates the principal and evaluates the operation permission.
+2. Files validates the tenant, owner, group membership, or applicable share.
+3. Files normalizes the logical path and resolves conflicts explicitly.
+4. Upload or connector response limits are enforced before content is retained.
+5. Files calculates SHA-256 and stores or reuses a tenant blob.
+6. Files creates the asset/version records and optional campaign share.
+7. The database transaction commits and emits change-sequence entries.
+8. Connector-originated operations also emit their connector audit evidence.
+
+Blob storage is not part of the database transaction. An object may therefore
+be left without committed metadata after a process or database failure. The
+operator integrity API scans database blobs and the tenant storage prefix in
+bounded, resumable phases. It reports orphan objects before any cleanup and
+never deletes them as part of a scan.
+
+### Governed connector import
+
+The connector flow separates four concerns:
+
+1. An administrator defines reusable credential material.
+2. An administrator defines a scoped endpoint profile that may reference that
+   credential.
+3. System, tenant, and leaf policy sources narrow the allowed profile,
+   credential, provider, URL, and remote path.
+4. A user optionally links an allowed remote root as a user/group connector
+   space, then browses and imports selected content.
+
+Before each network operation, Files checks profile visibility, connector
+policy, endpoint safety, transport support, and response size. A successful
+import becomes an independent managed snapshot. Later source changes have no
+effect until an explicit sync.
+
+### Campaign attachment evidence
+
+When Campaign uses Files, the integration follows a freeze-before-send model:
+
+1. The campaign refers to managed user/group sources and attachment patterns.
+2. Files verifies access and resolves matching managed assets.
+3. A prepared campaign snapshot records the exact asset, version, blob,
+   checksum, size, relative path, and source provenance.
+4. Files materializes those bytes for the campaign build without exposing its
+   database models to Campaign.
+5. Campaign job/entry use is recorded and later marked as sent.
+
+Changing the current file after preparation does not change the version already
+recorded as campaign evidence. A file response is marked `audit_relevant` once
+the asset has a sent campaign attachment-use record.
+
+### Process ownership
+
+| Concern | Owner |
+| --- | --- |
+| Authentication, tenants, RBAC evaluation, audit service, change sequence, settings, and module lifecycle | GovOPlaN Core |
+| Managed assets, blobs, versions, folders, shares, connector baseline, provenance, and campaign attachment evidence | Files |
+| Campaign definition, recipient data, message build/send state, and delivery policy | Campaign |
+| Remote ACLs, remote source content, and upstream revision semantics | The external provider |
+| Storage durability, egress policy, master key, secret environment, backup, and recovery | Deployment operator |
+| Collaborative editing, comments, review, locks, and semantic document workflows | A future Documents/workflow/provider module |
+
+## Ownership and access
+
+Files applies both permission checks and resource checks. A broad operation
+permission alone does not make another user's file visible.
+
+### Resource access
+
+- A user owns their personal space.
+- A group member can use the group's file space.
+- A Files administrator can access all Files resources in the active tenant.
+- A file share can grant read or write access to a user, group, or the tenant.
+- Campaign shares are resolved only in a verified campaign context and do not
+  become ordinary user shares.
+- Folders are owned by a user or group; they are not independently shared.
+- Soft-deleted resources are excluded from normal access and listing.
+- Tenant identifiers are checked on every managed object lookup.
+
+The `files.access` capability can explain why a principal has access: resource,
+owner, administrator scope, or active share. It also explains virtual folders
+that exist through child assets even when there is no explicit folder row.
+
+Deleting an organization/access group is vetoed while it owns Files assets,
+folders, connector spaces, or is the target of file shares. Reassign or remove
+those relationships first.
+
+### Operation permissions
+
+| Permission | Allows |
+| --- | --- |
+| `files:file:read` | List and inspect accessible files, folders, spaces, and visible connectors |
+| `files:file:download` | Download an accessible current version or ZIP archive |
+| `files:file:upload` | Upload managed assets and import/sync selected connector files |
+| `files:file:organize` | Create folders, rename, move/copy, and manage linked connector spaces |
+| `files:file:share` | Create or update file shares |
+| `files:file:delete` | Soft-delete accessible writable files and folders |
+| `files:file:admin` | Administer all Files spaces and connector settings in the active tenant |
+
+The `file_manager` role template grants all normal file operations except
+`files:file:admin`. The `file_viewer` template grants read and download.
+System and tenant settings permissions can also authorize the corresponding
+connector administration endpoints.
+
+## Administration and policy
+
+### Profiles, credentials, policies, and spaces
+
+Keep these definitions separate:
+
+- a **credential** holds reusable authentication material and may be restricted
+  to a provider;
+- a **profile** holds the endpoint, scope, base path, credential reference,
+  local policy, and descriptive operation capabilities;
+- a **policy** restricts what a scope may configure or use;
+- a **connector space** links one approved profile/library/path to one user or
+  group and always uses manual, read-only synchronization today.
+
+Profile capability values such as `browse`, `import`, and `sync` are stored and
+returned, but they are descriptive today. Provider implementation and policy
+checks enforce actual availability; do not use the capability list as the sole
+security control.
+
+Profiles, credentials, and policies support `system`, `tenant`, `user`,
+`group`, and `campaign` scopes. A normal user sees system and active-tenant
+profiles plus leaf profiles that match the user, one of their groups, or an
+accessible campaign. Disabled definitions are visible only through authorized
+administrative reads.
+
+### Policy evaluation
+
+For a leaf scope, the effective source chain is:
+
+```text
+system -> tenant -> user | group | campaign
+```
+
+Policy fields are:
+
+- connector/profile IDs;
+- credential IDs;
+- providers;
+- external IDs;
+- external path prefixes or glob patterns;
+- external URL glob patterns.
+
+Rules use `allow` and `deny` objects. Legacy synonyms `allowlist`, `whitelist`,
+`denylist`, and `blacklist` are normalized. A matching deny at any source wins.
+Every allow field defined by a source must match, so lower sources can narrow an
+inherited set. The effective-policy response includes the contributing source
+path and applied fields for explanation.
+
+A parent may set `allow_lower_level_limits` for individual fields such as
+`allow.providers` or `deny.external_paths`. An explicit `false` prevents a lower
+scope from configuring that field. Absence does not lock the field.
+
+Example tenant policy:
+
+```json
+{
+  "policy": {
+    "allow": {
+      "providers": ["webdav", "nextcloud"],
+      "external_urls": ["https://files.example.edu/*"],
+      "external_paths": ["departments/finance"]
+    },
+    "deny": {
+      "external_paths": ["departments/finance/private"]
+    },
+    "allow_lower_level_limits": {
+      "allow.providers": true,
+      "deny.external_paths": true
+    }
+  }
+}
+```
+
+Use `POST /api/v1/files/connector-policy/evaluate` for an explainable preflight.
+The normal profile browse/import/sync routes perform their own policy checks;
+preflight does not replace enforcement.
+
+### Credential rules
+
+Database-created passwords and tokens use Core's Fernet encryption and require
+the deployment `MASTER_KEY_B64` outside development/test/local environments.
+Secret values, environment variable names, and local CA paths are never returned
+in connector profile responses.
+
+API-managed profiles and credentials cannot select process environment
+variables, create an external `secret_ref`, or conceal secret-like values in
+nested metadata. Deployment-owned JSON/file profiles may use `password_env` or
+`token_env` only when the exact environment variable name appears in
+`GOVOPLAN_CONNECTOR_SECRET_ENV_ALLOWLIST`.
+
+Custom CA bundles must be absolute existing files in
+`GOVOPLAN_CONNECTOR_CA_BUNDLE_ALLOWLIST`. TLS verification can be disabled only
+in a development/test runtime.
+
+### Provider status
+
+| Provider | Current status |
+| --- | --- |
+| Seafile | Read-only native API browse/download-link import and manual sync implemented using the pinned HTTP transport; WebDAV opt-in supported |
+| Nextcloud | Read-only WebDAV browse/import/manual sync implemented using the pinned HTTP transport |
+| Generic WebDAV | Read-only browse/import/manual sync implemented using the pinned HTTP transport |
+| SMB | Browse/import code and descriptor implemented, but every live connection fails closed until initial connections and DFS referrals can be policy-validated and pinned |
+| S3 connector | Browse/import code and descriptor implemented, but every live SDK connection fails closed until botocore connections, redirects, and endpoint discovery can be validated and pinned |
+| SharePoint and OneDrive | Provider keys/descriptors reserved; live Microsoft Graph browse/import is planned |
+| NFS and local connector | Described as optional future providers; the local managed-storage backend is a different feature |
+
+Provider descriptors are available from
+`GET /api/v1/files/connectors/providers`. Use their `implemented`, `installed`,
+and support fields for display, but expect a fail-closed transport error where
+the table above says live access is disabled.
+
+## Operator runbook
+
+### Storage configuration
+
+| Setting | Default | Purpose |
+| --- | --- | --- |
+| `FILE_STORAGE_BACKEND` | `local` | Selects `local` or `s3` managed blob storage |
+| `FILE_STORAGE_LOCAL_ROOT` | `runtime/files` | Primary local write/read root |
+| `FILE_STORAGE_LOCAL_FALLBACK_ROOTS` | empty | Comma-separated older read-only roots checked after the primary root |
+| `FILE_STORAGE_S3_ENDPOINT_URL` and related `FILE_STORAGE_S3_*` values | deployment-specific | S3-compatible endpoint, region, credentials, and bucket |
+| `FILE_UPLOAD_MAX_BYTES` | 50 MiB | Direct-upload and ZIP-member maximum |
+| `FILE_UPLOAD_ZIP_MAX_BYTES` | 250 MiB | ZIP request and extracted-total maximum |
+| `MASTER_KEY_B64` | development fallback only | Encrypts database-managed connector secrets |
+
+The local backend is the operational baseline. It resolves every storage key
+under the configured root and rejects escape attempts. Fallback roots support a
+controlled storage-root migration: new writes go to the primary root while
+reads can still find older objects.
+
+The S3 managed-storage adapter currently fails closed before creating a boto3
+client because the SDK cannot yet guarantee connection-time DNS/IP pinning and
+redirect revalidation. Do not select `FILE_STORAGE_BACKEND=s3` for a live Files
+deployment until that boundary is implemented and the status above changes.
+
+Multiple API replicas require the same durable blob namespace. Separate local
+container filesystems will produce incomplete reads. Until a pinned shared
+object-storage transport is available, use one durable shared mount or constrain
+Files traffic to a deployment topology that preserves one consistent local
+root.
+
+### Connector egress
+
+Connector access to private networks is a deployment-wide decision:
+
+```text
+GOVOPLAN_CONNECTOR_ALLOW_PRIVATE_NETWORKS=true|false
+```
+
+Production-like configuration validation requires an explicit value. Public-only
+mode rejects any hostname whose DNS answers include a non-public address.
+Private-enabled mode still rejects link-local, multicast, unspecified, and
+limited-broadcast addresses.
+
+The built-in HTTP transport:
+
+- resolves and validates every connection attempt;
+- connects the socket to the exact approved address while retaining the
+  original hostname for HTTP Host, TLS SNI, and certificate verification;
+- does not inherit proxy settings;
+- refuses redirects instead of following a new peer implicitly;
+- bounds structured responses to 16 MiB and file transfers to 512 MiB by
+  default.
+
+Override the connector response limits with
+`GOVOPLAN_CONNECTOR_MAX_STRUCTURED_RESPONSE_BYTES` and
+`GOVOPLAN_CONNECTOR_MAX_FILE_TRANSFER_BYTES`. The smaller applicable limit wins
+when an import is also subject to `FILE_UPLOAD_MAX_BYTES`.
+
+Never work around a pinning failure by adding a raw IP, disabling TLS, or
+enabling private networks. SMB may redirect through DFS, and S3 SDKs may perform
+their own redirects or endpoint discovery; both remain disabled even for an IP
+literal until every connection peer can be governed.
+
+### Backup and restore
+
+The database and blob namespace are one logical backup set. A usable backup must
+include:
+
+- Files database rows, including asset/version/blob relationships, shares,
+  connector settings, and campaign attachment-use evidence;
+- every object below `FILE_STORAGE_LOCAL_ROOT` and any still-used fallback root;
+- the exact `MASTER_KEY_B64` needed to decrypt retained connector credentials;
+- deployment-owned connector profile files, referenced CA bundles, and secret
+  environment configuration where those definitions are in use.
+
+There is no Files backup/restore API. Use a write quiesce or coordinated
+snapshots so database references and objects represent the same recovery point.
+The integrity API verifies a restored set, but it does not replace a coordinated
+backup.
+
+Create a scan with `POST /api/v1/files/integrity/scans`, then call
+`POST /api/v1/files/integrity/scans/{scan_id}/run` until it reports
+`completed`. Each call advances at most the persisted batch size, so a stopped
+operator or worker can resume from the committed blob/object cursors.
+
+Findings distinguish:
+
+- `missing`: metadata references an absent object;
+- `size_mismatch` or `checksum_mismatch`: bytes do not match immutable blob
+  metadata and the blob is quarantined;
+- `orphan_object`: an object exists in the tenant Files prefix without a
+  corresponding blob row.
+
+Missing or corrupt blobs fail closed for ordinary downloads and Campaign
+attachment materialization. After restoring the expected bytes, use the finding
+`recheck` action first in dry-run mode and then apply it. Orphan cleanup is also
+dry-run by default, rechecks that no database reference exists, remains scoped
+to the scanned tenant prefix, and is idempotent. Both applied and dry-run
+actions emit audit evidence.
+
+After restore:
+
+1. Verify the active tenant and module migration state.
+2. Verify the storage backend and roots before allowing writes.
+3. Verify that the original master key is available before testing connectors.
+4. Download representative files and compare bytes with their recorded SHA-256.
+5. Test one authorized and one unauthorized owner/share path.
+6. Test a permitted pinned HTTP connector, if connectors are configured.
+7. Review audit and change-sequence continuity around the recovery point.
+
+An inconsistent restore should fail closed for missing objects or undecryptable
+credentials. Do not repair it by deleting evidence rows without an approved,
+audited data-recovery decision.
+
+### Disable, uninstall, and retire
+
+Disabling a module preserves its persistent data. Ordinary uninstall is guarded
+while Files tables contain persistent rows.
+
+Destructive retirement is separate and irreversible at the application level.
+The installer records a database snapshot, then Files scrubs and audits
+remaining encrypted connector material before its database tables are dropped.
+Legacy external secret references are detached and identified as non-owned;
+Files never calls a provider delete operation for them.
+
+The retirement executor drops database tables but does not delete corresponding
+objects from the configured blob backend. Operators must include those objects
+in the approved retention/destruction plan, report them with an integrity scan,
+and explicitly approve cleanup. Validate the installer snapshot and independent
+blob backup before retirement.
+
+### Operational signals
+
+Use these symptoms as routing hints:
+
+| Symptom | Likely boundary |
+| --- | --- |
+| `Stored object does not exist` | Database/blob restore mismatch, wrong root, or missing shared storage |
+| `Stored secret cannot be decrypted` | Wrong or rotated `MASTER_KEY_B64` |
+| Private/non-public endpoint blocked | Deployment-wide egress policy is public-only or DNS returned a forbidden answer |
+| SDK cannot pin redirects/referrals | Expected fail-closed S3/SMB boundary, not a transient connector outage |
+| Connector response exceeds limit | Remote payload exceeds connector or upload limit |
+| Profile is not visible | Scope, disabled state, campaign access, or policy mismatch |
+| Group removal is vetoed | The group still owns a file/folder/connector space or is a share target |
+
+## Capabilities and integration
+
+Other modules must integrate through Core contracts, Files capabilities, or the
+public HTTP API. They must not import Files ORM models or storage helpers.
+
+### Provided capabilities
+
+| Capability | Purpose |
+| --- | --- |
+| `files.access` (`0.1.6`) | Explain resource access provenance for managed files, explicit folders, and virtual folders |
+| `files.campaign_attachments` (`0.1.6`) | Resolve managed attachment matches, prepare frozen campaign snapshots, annotate built messages, share assets with a campaign, and record/mark exact attachment use |
+
+Files requires Core principal resolution and permission evaluation. Campaign is
+an optional dependency; when installed, Files consumes the optional
+`campaigns.access` interface to verify campaign existence and access. Missing
+optional Campaign support fails explicitly rather than bypassing the check.
+
+### API families
+
+All routes below are under `/api/v1/files`.
+
+| Area | Routes |
+| --- | --- |
+| Spaces and content | `GET /spaces`, `GET /`, `GET /folders`, `GET /delta` |
+| Upload and folders | `POST /upload`, `POST /upload-zip`, `POST /folders`, `POST /folders/delete` |
+| File access | `GET /{file_id}`, `GET /{file_id}/download`, `DELETE /{file_id}`, `POST /bulk-delete` |
+| Organization | `POST /bulk-rename`, `POST /transfer`, `POST /archive.zip`, `POST /resolve-patterns` |
+| Sharing | `POST /{file_id}/shares`, `POST /bulk-shares` |
+| Connector spaces | `GET/POST /connector-spaces`, `PATCH/DELETE /connector-spaces/{space_id}` |
+| Connector catalog/discovery | `GET /connectors/providers`, `POST /connectors/discover` |
+| Connector profiles | `GET/POST /connectors/profiles`, `GET/PATCH/DELETE /connectors/profiles/{profile_id}` |
+| Browse/import/sync | `GET /connectors/profiles/{profile_id}/browse`, `POST /connectors/profiles/{profile_id}/import`, `POST /connectors/profiles/{profile_id}/sync` |
+| Credentials | `GET/POST /connectors/credentials`, `GET/PATCH/DELETE /connectors/credentials/{credential_id}` |
+| Policy | `GET/PUT /connectors/policies/{scope_type}`, `POST /connector-policy/evaluate` |
+| Incremental connector settings | `GET /connectors/settings/delta` |
+
+Consumers should use cursor/watermark contracts instead of assuming an
+unbounded complete list. The default full-list page size is 500 and public page
+sizes are capped at 1,000.
+
+### Integration invariants
+
+An integrating module should:
+
+- ask Files/Core for access rather than trusting a submitted file ID;
+- retain an exact version/blob/checksum at every governed evidence point;
+- import external content before using it in a campaign, report, workflow, or
+  generated document;
+- preserve Files provenance when producing a derived managed snapshot;
+- treat source provenance as captured context, not cryptographic attestation;
+- avoid writing remote providers through the baseline connector layer;
+- define a separate capability when it needs behavior beyond managed snapshots;
+- tolerate Files being absent when the integration is declared optional.
+
+Future Postbox, Templates/Reports, BI, Documents, DMS, and workflow modules
+should keep their own domain state and use Files for governed input/output
+snapshots. Long-running provider sync, OAuth, remote mutation, and
+provider-specific health belong in connector modules rather than expanding the
+Files baseline indiscriminately.
+
+## Security, provenance, audit, deletion, and retention
+
+### Security controls implemented
+
+- Core authentication, tenant scoping, CSRF/API handling, and RBAC protect the
+  public routes.
+- Owner and share checks protect individual resources after operation-scope
+  checks.
+- Logical paths reject traversal and storage keys cannot escape the local root.
+- Upload, ZIP extraction, connector response, and S3 stream code use bounded
+  reads; encrypted ZIP archives are rejected.
+- Connector HTTP sockets use connection-time DNS/IP validation and pinning,
+  redirects are refused, and unsafe SDK transports fail before client creation.
+- Database-managed connector passwords/tokens are encrypted; responses redact
+  secrets and deployment references.
+- API metadata is recursively checked for secret-like values.
+- Downloads use sanitized attachment filenames.
+- SHA-256 and byte size are recorded for every blob/version.
+
+The module does **not** currently provide malware scanning, content disarm and
+reconstruction, a file-type allowlist, per-user quota, at-rest encryption for
+local blob bytes, or a dedicated preview sandbox. Deployments that require
+these controls must supply them outside Files until explicit module contracts
+exist.
+
+### Provenance
+
+Connector-originated assets can retain:
+
+- source type;
+- connector/profile ID and provider;
+- external ID, path, and URL;
+- revision and revision label;
+- observation/import timestamps when supplied;
+- selected provider metadata.
+
+The normalized provenance and source revision are returned in file responses,
+carried into campaign attachment matches, and included in connector audit
+events. External metadata is provider/user input and is not a digital signature.
+
+### Audit and change evidence
+
+Files records canonical audit events for:
+
+- connector discovery attempts, before the attempted external I/O;
+- connector imports and manual syncs;
+- download/archive access to connector-originated managed files;
+- immediate connector profile and credential deletion/scrubbing;
+- credential scrubbing during destructive module retirement.
+
+Connector audit details include the managed asset/version/blob, checksum, size,
+operation, source revision, and provenance where applicable. Deletion audit
+details name secret/reference kinds but never the secret values.
+
+Assets, folders, shares, profiles, credentials, policies, and connector spaces
+also feed Core's incremental change sequence for UI synchronization. A change
+entry is not equivalent to a canonical audit event. Ordinary local upload,
+rename, share, and soft-delete operations do not yet all emit dedicated Files
+audit events.
+
+Campaign attachment-use records provide separate domain evidence for an exact
+file version used in campaign preparation and delivery.
+
+### Deletion semantics
+
+The word "delete" has different meanings by object type:
+
+| Object | Current delete behavior |
+| --- | --- |
+| File asset | Sets `deleted_at`; content, versions, blob references, and campaign evidence remain |
+| Folder | Sets `deleted_at`; recursive deletion also soft-deletes descendants |
+| Connector space | Sets `deleted_at` and disables the space |
+| Connector credential | Immediately disables the tombstone and clears username, encrypted password/token, environment references, legacy external reference, mode, and private metadata; dependent profiles are disabled and detached |
+| Connector profile | Immediately disables the tombstone and clears credential links/material/references and private metadata |
+| Legacy `secret_ref` | Detached and audited as an unowned external reference; no provider deletion is attempted or claimed |
+| Module retirement | Scrubs/audits credential material, then drops Files database tables; blob-backend cleanup is an operator responsibility |
+
+Credential/profile scrubbing and its audit event use the same database
+transaction. If audit creation fails, the deletion rolls back. Repeating a
+delete against an already scrubbed tombstone does not recreate secret evidence.
+
+### Retention boundary
+
+File versions and blobs are effectively retained indefinitely today. Although a
+blob has `ref_count` and `retained_until` fields, no complete retention-policy,
+legal-hold, hard-purge, or garbage-collection service enforces them. There is
+also no supported user restore endpoint for soft-deleted assets/folders.
+Integrity reconciliation is operator-triggered and is not a retention or
+automatic garbage-collection policy.
+
+Do not promise erasure, timed retention, legal hold, or self-service recovery
+from the current soft-delete behavior. Those require an explicit, auditable
+retention/purge design that preserves campaign and other evidence references.
+
+## Acceptance scenarios
+
+These scenarios describe expected behavior at the current boundary.
+
+### Personal and group ownership
+
+Given Alice has `files:file:upload` and belongs to Finance, when she uploads to
+her personal or Finance space, then the asset has the selected owner and tenant.
+Given Bob is outside Finance and has no share or Files admin permission, the
+same asset ID must not make the asset readable to Bob.
+
+### Safe ZIP import
+
+Given a ZIP member contains `../../secret.txt`, is encrypted, exceeds 50 MiB,
+or pushes actual extracted bytes above 250 MiB, unpacking must fail without a
+committed managed asset. A valid archive must preserve normalized relative paths
+below the chosen logical folder.
+
+### Explicit conflicts
+
+Given a target path already exists, `reject` must leave it unchanged, `rename`
+must choose a non-conflicting path, and `overwrite` must soft-delete the old
+asset before creating the replacement. A per-item `skip` must not create that
+item.
+
+### Policy-denied connector
+
+Given the tenant permits WebDAV only below `departments/finance` and denies its
+`private` child, a browse/import/sync request below the denied child must return
+an explainable policy denial. Directly invoking the import endpoint must not
+bypass the same rule.
+
+### Pinned connector transport
+
+Given public-only mode and DNS returns any private address, the connection must
+be rejected before a socket opens. Given private mode, the HTTP connection must
+still use the validated address and reject redirects. SMB and S3 must fail
+before their SDK clients connect until all SDK-managed peers can be pinned.
+
+### Imported evidence and sync
+
+Given a permitted WebDAV file is imported, its managed response and audit event
+must carry source identity, revision when available, current version, checksum,
+and size. Re-syncing identical bytes must return `unchanged`; changed bytes must
+create a higher version while preserving the previous version.
+
+### Campaign freeze
+
+Given a campaign snapshot selected version V1, when the managed asset later
+advances to V2, the prepared/sent attachment-use evidence must still identify
+V1 and its original blob/checksum.
+
+### Immediate credential deletion
+
+Given a database credential contains an encrypted password and is referenced by
+two profiles, deleting it must scrub the credential, disable/detach both
+profiles, record non-secret audit evidence, and publish connector-setting
+changes in one transaction. If audit creation fails, no part of the deletion
+may commit.
+
+### Recovery
+
+Given a coordinated database/blob backup and the original master key, restoring
+it must allow representative downloads whose bytes match recorded SHA-256
+values. A missing blob or wrong key must surface an error rather than silently
+returning different content or credentials.
+
+## Implemented and planned boundary
+
+| Area | Implemented now | Planned or explicitly outside the current boundary |
+| --- | --- | --- |
+| Managed storage | Local durable-root backend, fallback read roots, tenant blob deduplication, checksums, bounded resumable integrity scans, quarantine, and dry-run-first orphan cleanup | Operational S3 after pinned SDK transport ([#34](https://git.add-ideas.de/GovOPlaN/govoplan-files/issues/34)); scheduled scan execution |
+| Upload | Bounded direct upload, drag-and-drop UI, ZIP spool/extract limits, explicit conflicts | Malware scanning, quotas, type policy, resumable/chunked upload |
+| Organization | Folders, bulk rename preview/apply, move/copy, drag-and-drop, ZIP download, pattern resolution | General file-history UI and user-driven append-version/restore |
+| Sharing | User/group/tenant/campaign grants, expiry, idempotent revocation, searchable share-management UI, and campaign linkage display | Richer policy-driven share lifecycles |
+| Deletion/retention | Soft-delete assets/folders/spaces; immediate audited connector-secret scrubbing | File restore API, hard purge, retention policy, legal hold, and blob GC ([#38](https://git.add-ideas.de/GovOPlaN/govoplan-files/issues/38)) |
+| Connector governance | Scoped profiles/credentials/policies, effective source explanation, separate credentials, linked user/group spaces | Provider-owned external secret lifecycle; API `secret_ref` remains rejected |
+| HTTP connectors | Pinned, bounded, no-redirect Seafile and WebDAV/Nextcloud browse/import/manual sync | Background/folder sync, remote mutation, long-running transfer workers |
+| SMB and S3 connectors | Provider descriptors and browse/import logic | Live access only after SDK connections plus DFS referrals/redirects are validated and pinned ([SMB #35](https://git.add-ideas.de/GovOPlaN/govoplan-files/issues/35), [S3 #34](https://git.add-ideas.de/GovOPlaN/govoplan-files/issues/34)) |
+| Other providers | Reserved SharePoint/OneDrive keys and NFS/local descriptors | Graph/OAuth/provider paging, NFS deployment integration, DMS connectors |
+| Connector spaces | User/group link, browse, manual selected-file sync, edit/disable/delete | Background sync, remote writes/deletes, full conflict-reporting jobs |
+| Profile capabilities | Stored and displayed | Enforce capability flags as an independent operation gate |
+| Audit | Connector discovery/import/sync/access and connector deletion; campaign exact-use evidence | Dedicated canonical audit events for every ordinary Files mutation |
+| Preview | File metadata and attachment download | Dedicated safe content-preview service |
+| Campaign | Stable capability-based frozen attachments and sent-use evidence | Campaign-specific process state remains in Campaign |
+| Collaboration | Governed input/output snapshots | Co-editing, comments, review, presence, locks, and semantic document versions belong to Documents/workflow/provider modules |
+
+## Release and change checklist
+
+Before releasing Files:
+
+1. Keep `pyproject.toml`, root `package.json`, WebUI `package.json`, and the
+   module manifest version aligned. Version alignment is a release gate.
+2. Run the Files Python tests and security/static-analysis gates from the
+   GovOPlaN meta repository.
+3. Build/type-check the WebUI through the Core host application.
+4. Verify database migrations on an upgrade copy and a clean database.
+5. Exercise an allowed and denied owner/share path.
+6. Exercise upload, ZIP bounds, conflict handling, download, and soft deletion.
+7. Exercise connector policy explanation and one pinned HTTP provider where
+   configured; verify S3/SMB still fail closed.
+8. Verify credential deletion scrubs dependents and produces audit evidence.
+9. Verify a campaign attachment snapshot still identifies its exact version and
+   checksum after the current file changes.
+10. Update the implemented/planned table whenever a boundary changes.
+
+## Related documents
+
+- [Repository overview](../README.md)
+- [Connector ownership boundary](CONNECTOR_BOUNDARY.md)
+- [Connector spaces design and implementation history](CONNECTOR_SPACES.md)
+- [Document collaboration boundary](DOCUMENT_COLLABORATION_BOUNDARY.md)
+
+Where an older planning section conflicts with current code or this handbook's
+implemented/planned table, verify the code and update both documents in the same
+reviewable documentation slice.

src/govoplan_files/backend/capabilities.py

@@ -22,6 +22,7 @@ from govoplan_files.backend.storage.campaign_attachments import (
 from govoplan_files.backend.storage.campaign_usage import record_campaign_attachment_uses_for_jobs
 from govoplan_files.backend.storage.files import current_version_and_blob
 from govoplan_files.backend.storage.paths import normalize_folder
+from govoplan_files.backend.storage.share_state import effective_file_share_clause
 
 
 VIRTUAL_FOLDER_RESOURCE_PREFIX = "virtual-folder:v1"
@@ -96,7 +97,7 @@ class FilesAccessService(FileAccessProvider):
             .filter(
                 FileShare.tenant_id == asset.tenant_id,
                 FileShare.file_asset_id == asset.id,
-                FileShare.revoked_at.is_(None),
+                effective_file_share_clause(),
                 FileShare.permission.in_(sorted(permission_values)),
                 or_(
                     (FileShare.target_type == "user") & (FileShare.target_id == principal.membership_id),

src/govoplan_files/backend/change_tracking.py

@@ -117,7 +117,15 @@ def _record_share_visibility_change(session: OrmSession, share: FileShare) -> No
         return
     if not state.pending and not has_attr_changes(
         state,
-        ("file_asset_id", "target_type", "target_id", "permission", "revoked_at"),
+        (
+            "file_asset_id",
+            "target_type",
+            "target_id",
+            "permission",
+            "expires_at",
+            "revoked_at",
+            "revoked_by_user_id",
+        ),
     ):
         return
     _ensure_id(share)
@@ -136,7 +144,9 @@ def _record_share_visibility_change(session: OrmSession, share: FileShare) -> No
             "share_target_type": share.target_type,
             "share_target_id": share.target_id,
             "share_permission": share.permission,
+            "share_expires_at": _isoformat(share.expires_at),
             "share_revoked_at": _isoformat(share.revoked_at),
+            "share_revoked_by_user_id": share.revoked_by_user_id,
         },
     )
 

src/govoplan_files/backend/db/models.py

@@ -28,6 +28,55 @@ class FileBlob(Base, TimestampMixin):
     content_type: Mapped[str | None] = mapped_column(String(255))
     ref_count: Mapped[int] = mapped_column(Integer, default=1, nullable=False)
     retained_until: Mapped[datetime | None] = mapped_column(DateTime(timezone=True))
+    integrity_status: Mapped[str] = mapped_column(String(30), default="unchecked", nullable=False, index=True)
+    integrity_checked_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True, index=True)
+    integrity_failure: Mapped[str | None] = mapped_column(String(100), nullable=True)
+    quarantined_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True, index=True)
+
+
+class FileIntegrityScan(Base, TimestampMixin):
+    __tablename__ = "file_integrity_scans"
+
+    id: Mapped[str] = mapped_column(String(36), primary_key=True, default=new_uuid)
+    tenant_id: Mapped[str] = mapped_column(String(36), nullable=False, index=True)
+    storage_backend: Mapped[str] = mapped_column(String(50), nullable=False)
+    storage_prefix: Mapped[str] = mapped_column(String(1000), nullable=False)
+    status: Mapped[str] = mapped_column(String(30), default="pending", nullable=False, index=True)
+    phase: Mapped[str] = mapped_column(String(30), default="blobs", nullable=False)
+    verify_checksums: Mapped[bool] = mapped_column(Boolean, default=True, nullable=False)
+    batch_size: Mapped[int] = mapped_column(Integer, default=100, nullable=False)
+    blob_cursor: Mapped[str | None] = mapped_column(String(36), nullable=True)
+    object_cursor: Mapped[str | None] = mapped_column(String(1000), nullable=True)
+    scanned_blob_count: Mapped[int] = mapped_column(Integer, default=0, nullable=False)
+    verified_blob_count: Mapped[int] = mapped_column(Integer, default=0, nullable=False)
+    quarantined_blob_count: Mapped[int] = mapped_column(Integer, default=0, nullable=False)
+    scanned_object_count: Mapped[int] = mapped_column(Integer, default=0, nullable=False)
+    orphan_object_count: Mapped[int] = mapped_column(Integer, default=0, nullable=False)
+    created_by_user_id: Mapped[str | None] = mapped_column(ForeignKey("access_users.id", ondelete="SET NULL"), nullable=True, index=True)
+    started_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True)
+    completed_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True)
+    last_error: Mapped[str | None] = mapped_column(String(255), nullable=True)
+
+
+class FileIntegrityFinding(Base, TimestampMixin):
+    __tablename__ = "file_integrity_findings"
+    __table_args__ = (
+        Index("ix_file_integrity_findings_scan_state", "scan_id", "state"),
+    )
+
+    id: Mapped[str] = mapped_column(String(36), primary_key=True, default=new_uuid)
+    scan_id: Mapped[str] = mapped_column(ForeignKey("file_integrity_scans.id", ondelete="CASCADE"), nullable=False, index=True)
+    tenant_id: Mapped[str] = mapped_column(String(36), nullable=False, index=True)
+    kind: Mapped[str] = mapped_column(String(40), nullable=False, index=True)
+    state: Mapped[str] = mapped_column(String(30), default="open", nullable=False, index=True)
+    blob_id: Mapped[str | None] = mapped_column(ForeignKey("file_blobs.id", ondelete="SET NULL"), nullable=True, index=True)
+    storage_key: Mapped[str] = mapped_column(String(1000), nullable=False)
+    expected_size_bytes: Mapped[int | None] = mapped_column(Integer, nullable=True)
+    observed_size_bytes: Mapped[int | None] = mapped_column(Integer, nullable=True)
+    expected_checksum_sha256: Mapped[str | None] = mapped_column(String(64), nullable=True)
+    observed_checksum_sha256: Mapped[str | None] = mapped_column(String(64), nullable=True)
+    resolved_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True)
+    resolved_by_user_id: Mapped[str | None] = mapped_column(ForeignKey("access_users.id", ondelete="SET NULL"), nullable=True, index=True)
 
 
 class FileFolder(Base, TimestampMixin):
@@ -105,7 +154,9 @@ class FileShare(Base, TimestampMixin):
     target_id: Mapped[str] = mapped_column(String(36), nullable=False, index=True)
     permission: Mapped[str] = mapped_column(String(20), default="read", nullable=False)
     created_by_user_id: Mapped[str | None] = mapped_column(ForeignKey("access_users.id", ondelete="SET NULL"), nullable=True, index=True)
+    expires_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True, index=True)
     revoked_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True, index=True)
+    revoked_by_user_id: Mapped[str | None] = mapped_column(ForeignKey("access_users.id", ondelete="SET NULL"), nullable=True, index=True)
 
 
 class FileConnectorProfile(Base, TimestampMixin):

src/govoplan_files/backend/documentation.py

@@ -0,0 +1,461 @@
+from __future__ import annotations
+
+from sqlalchemy.orm import Session
+
+from govoplan_core.core.campaigns import (
+    CAPABILITY_CAMPAIGNS_ACCESS,
+    CampaignAccessProvider,
+)
+from govoplan_core.core.modules import (
+    DocumentationCondition,
+    DocumentationContext,
+    DocumentationLink,
+    DocumentationTopic,
+)
+from govoplan_files.backend.storage.archives import ZIP_UPLOAD_MAX_FILES
+from govoplan_files.backend.storage.access import user_group_ids
+from govoplan_files.backend.storage.connector_visibility import (
+    connector_profile_usable_for_import,
+    visible_connector_profiles_for_actor,
+)
+
+
+_DEFAULT_UPLOAD_MAX_BYTES = 50 * 1024 * 1024
+_DEFAULT_ZIP_MAX_BYTES = 250 * 1024 * 1024
+_FILES_READ_SCOPE = "files:file:read"
+_FILES_UPLOAD_SCOPE = "files:file:upload"
+
+
+def documentation_topics(
+    context: DocumentationContext,
+) -> tuple[DocumentationTopic, ...]:
+    if context.documentation_type != "user":
+        return ()
+
+    upload_limit = _configured_positive_int(
+        context.settings,
+        "file_upload_max_bytes",
+        default=_DEFAULT_UPLOAD_MAX_BYTES,
+    )
+    zip_limit = _configured_positive_int(
+        context.settings,
+        "file_upload_zip_max_bytes",
+        default=_DEFAULT_ZIP_MAX_BYTES,
+    )
+    topics: list[DocumentationTopic] = []
+    if upload_limit is not None:
+        topics.append(_upload_topic(upload_limit))
+    if upload_limit is not None and zip_limit is not None:
+        topics.append(_zip_topic(upload_limit, zip_limit))
+    topics.append(_connector_import_topic(context))
+    return tuple(topics)
+
+
+def _upload_topic(max_bytes: int) -> DocumentationTopic:
+    limit = _format_byte_limit(max_bytes)
+    return DocumentationTopic(
+        id="files.workflow.upload-managed-files",
+        title="Upload managed files",
+        summary=f"Upload files to a personal or accessible group space; each uploaded file may contain at most {limit}.",
+        body=(
+            f"The current deployment accepts at most {limit} for each ordinary upload. "
+            "A name conflict is never resolved silently: reject stops the upload, rename chooses a copy name, and overwrite retires the old asset before creating a new one."
+        ),
+        layer="configured",
+        documentation_types=("user",),
+        audience=("file_user", "file_manager", "process_participant"),
+        order=39,
+        conditions=(
+            DocumentationCondition(
+                required_modules=("files",),
+                required_scopes=(_FILES_READ_SCOPE, _FILES_UPLOAD_SCOPE),
+            ),
+        ),
+        links=(
+            DocumentationLink(label="Files", href="/files", kind="runtime"),
+            DocumentationLink(
+                label="Files handbook",
+                href="govoplan-files/docs/FILES_HANDBOOK.md",
+                kind="repository",
+            ),
+        ),
+        related_modules=("campaigns",),
+        unlocks=(
+            "Users and connected processes can place governed content in managed storage.",
+        ),
+        source_module_id="files",
+        metadata={
+            "kind": "workflow",
+            "route": "/files",
+            "screen": "Files",
+            "help_contexts": ["files.list"],
+            "prerequisites": [
+                "You may view and upload managed files.",
+                "The destination personal or group space grants this account write access; upload permission alone does not grant access to every space.",
+            ],
+            "steps": [
+                "Open Files and choose My files or an accessible group space.",
+                "Open the intended destination folder and choose Upload, or drag files into the file list.",
+                "For every name conflict, explicitly reject, rename, overwrite, or skip the affected item.",
+                "Wait for the upload to finish, then open the resulting file details.",
+            ],
+            "outcome": "Each accepted file is stored as a governed managed asset in the selected space.",
+            "verification": "Confirm the owner, logical path, size, checksum, and current version in Files.",
+            "constraints": [
+                {
+                    "id": "ordinary-upload-size",
+                    "label": "Maximum size per file",
+                    "description": f"The current safe upload limit is {limit} per file.",
+                    "values": [limit],
+                },
+            ],
+            "related_topic_ids": [
+                "files.workflow.upload-and-unpack-zip",
+                "files.workflow.organize-managed-files",
+                "files.workflow.find-and-download-files",
+            ],
+        },
+    )
+
+
+def _zip_topic(max_file_bytes: int, max_zip_bytes: int) -> DocumentationTopic:
+    member_limit = _format_byte_limit(max_file_bytes)
+    archive_limit = _format_byte_limit(max_zip_bytes)
+    return DocumentationTopic(
+        id="files.workflow.upload-and-unpack-zip",
+        title="Upload and unpack a ZIP archive",
+        summary=(
+            f"Safely unpack up to {ZIP_UPLOAD_MAX_FILES:,} files from a ZIP whose request and extracted total are each limited to {archive_limit}."
+        ),
+        body=(
+            f"The current deployment limits the ZIP request and actual extracted total to {archive_limit}, each member to {member_limit}, "
+            f"and the archive to {ZIP_UPLOAD_MAX_FILES:,} non-directory members. Encrypted archives and unsafe member paths are rejected. "
+            "Actual extracted bytes are counted instead of trusting ZIP headers."
+        ),
+        layer="configured",
+        documentation_types=("user",),
+        audience=("file_user", "file_manager", "process_participant"),
+        order=40,
+        conditions=(
+            DocumentationCondition(
+                required_modules=("files",),
+                required_scopes=(_FILES_READ_SCOPE, _FILES_UPLOAD_SCOPE),
+            ),
+        ),
+        links=(
+            DocumentationLink(label="Files", href="/files", kind="runtime"),
+            DocumentationLink(
+                label="Files handbook",
+                href="govoplan-files/docs/FILES_HANDBOOK.md",
+                kind="repository",
+            ),
+        ),
+        unlocks=(
+            "A bounded archive can become governed managed files without trusting archive paths or size declarations.",
+        ),
+        source_module_id="files",
+        metadata={
+            "kind": "workflow",
+            "route": "/files",
+            "screen": "Files",
+            "help_contexts": ["files.list"],
+            "prerequisites": [
+                "You may view and upload managed files.",
+                "The archive is not encrypted and fits the current configured limits.",
+                "The destination personal or group space grants this account write access.",
+            ],
+            "steps": [
+                "Open Files and choose the managed destination space and folder.",
+                "Enable Unpack ZIP uploads, then choose or drag the ZIP archive.",
+                "Resolve every destination conflict explicitly.",
+                "Wait for extraction and finalization to finish before leaving the page.",
+            ],
+            "outcome": "Accepted archive members are stored as separate governed managed assets below the selected folder.",
+            "verification": "Confirm the expected member paths and inspect representative file sizes, checksums, and versions.",
+            "constraints": [
+                {
+                    "id": "zip-request-and-total",
+                    "label": "Maximum ZIP request and extracted total",
+                    "description": f"Both the compressed request and the actual extracted total are limited to {archive_limit}.",
+                    "values": [archive_limit],
+                },
+                {
+                    "id": "zip-member-size",
+                    "label": "Maximum extracted member size",
+                    "description": f"Each extracted file is limited to {member_limit}.",
+                    "values": [member_limit],
+                },
+                {
+                    "id": "zip-member-count",
+                    "label": "Maximum file count",
+                    "description": f"A ZIP may contain at most {ZIP_UPLOAD_MAX_FILES:,} non-directory members.",
+                    "values": [f"{ZIP_UPLOAD_MAX_FILES:,} files"],
+                },
+            ],
+            "related_topic_ids": [
+                "files.workflow.upload-managed-files",
+                "files.workflow.organize-managed-files",
+                "files.workflow.find-and-download-files",
+            ],
+        },
+    )
+
+
+def _connector_import_topic(context: DocumentationContext) -> DocumentationTopic:
+    principal = context.principal
+    if not _has_all_scopes(principal, (_FILES_READ_SCOPE, _FILES_UPLOAD_SCOPE)):
+        return _connector_import_limitation(
+            "Connector import is not available to this account because both permission to view Files and permission to upload managed files are required."
+        )
+
+    tenant_id = _safe_text_attribute(principal, "tenant_id")
+    user_id = _safe_text_attribute(getattr(principal, "user", None), "id")
+    session = context.session
+    if not tenant_id or not user_id or not isinstance(session, Session):
+        return _connector_import_limitation(
+            "Connector import availability could not be safely evaluated for this request. Try again, or ask a Files administrator to verify an actor-visible connection."
+        )
+
+    try:
+        member_group_ids = _actor_group_ids(
+            session,
+            principal=principal,
+            tenant_id=tenant_id,
+            user_id=user_id,
+            include_admin_groups=False,
+        )
+        connector_group_ids = (
+            _actor_group_ids(
+                session,
+                principal=principal,
+                tenant_id=tenant_id,
+                user_id=user_id,
+                include_admin_groups=True,
+            )
+            if _has_all_scopes(principal, ("files:file:admin",))
+            else member_group_ids
+        )
+        profiles = visible_connector_profiles_for_actor(
+            session,
+            tenant_id=tenant_id,
+            user_id=user_id,
+            group_ids=connector_group_ids,
+            settings=context.settings,
+            campaign_visible=_campaign_visibility(
+                context,
+                session=session,
+                tenant_id=tenant_id,
+                user_id=user_id,
+                group_ids=member_group_ids,
+            ),
+            include_effective_policy=True,
+        )
+        usable_profiles = tuple(
+            profile
+            for profile in profiles
+            if connector_profile_usable_for_import(profile)
+        )
+    except Exception:
+        return _connector_import_limitation(
+            "Connector import availability could not be safely evaluated for this request. Try again, or ask a Files administrator to verify an actor-visible connection."
+        )
+    if not usable_profiles:
+        return _connector_import_limitation(
+            "No connection visible to this account is currently eligible to offer an enabled, credential-ready, policy-allowed browse/import path through a pinning-safe provider. Ask a Files administrator to configure or authorize one."
+        )
+
+    return DocumentationTopic(
+        id="files.workflow.import-managed-snapshot",
+        title="Import an external file as a governed snapshot",
+        summary="Browse an authorized connection read-only and import one selected file into managed storage as a frozen, traceable snapshot.",
+        body=(
+            "At least one connection visible to this account is currently eligible to offer the governed browse/import path. "
+            "The selected remote path and item are re-authorized when used, and browse, import, and sync never mutate the remote source. "
+            "The managed snapshot stays unchanged until an explicit manual sync."
+        ),
+        layer="configured",
+        documentation_types=("user",),
+        audience=("file_user", "campaign_manager", "report_author"),
+        order=41,
+        conditions=(
+            DocumentationCondition(
+                required_modules=("files",),
+                required_scopes=(_FILES_READ_SCOPE, _FILES_UPLOAD_SCOPE),
+            ),
+        ),
+        links=(
+            DocumentationLink(label="Files", href="/files", kind="runtime"),
+            DocumentationLink(
+                label="Files handbook",
+                href="govoplan-files/docs/FILES_HANDBOOK.md",
+                kind="repository",
+            ),
+        ),
+        related_modules=("campaigns",),
+        unlocks=(
+            "Campaigns, reports, and workflows can consume a managed snapshot with stable source evidence.",
+        ),
+        source_module_id="files",
+        metadata={
+            "kind": "workflow",
+            "route": "/files",
+            "screen": "Files",
+            "help_contexts": ["files.list", "files.connector-import"],
+            "prerequisites": [
+                "You may view and upload managed files.",
+                "At least one enabled, credential-ready, policy-allowed connection using a pinning-safe provider is visible to this account.",
+                "The selected remote path and item must pass their operation-time policy checks.",
+                "The managed destination space grants this account write access.",
+            ],
+            "steps": [
+                "Open Files and choose a managed destination space.",
+                "Choose Sync from connection, select an available connection, and browse to the permitted remote file.",
+                "Import the selected file and resolve any destination conflict explicitly.",
+                "Review the managed file's source and current-version details before using it in another task.",
+            ],
+            "current_configuration": [
+                "At least one actor-visible connection is eligible to offer a safe browse/import operation; the selected endpoint, path, and item are still checked when used.",
+                "Every selected remote path and item is re-authorized at operation time.",
+            ],
+            "outcome": "The external content is a tenant-managed snapshot with a checksum, exact version, and recorded source context.",
+            "verification": "Reopen the managed file and confirm its recorded source context, source revision when available, checksum, and current version.",
+            "related_topic_ids": [
+                "files.governed-connectors-and-provenance",
+                "files.reference.integrity-recovery-and-fail-closed-transports",
+                "files.reference.snapshot-provenance-and-capabilities",
+            ],
+        },
+    )
+
+
+def _connector_import_limitation(message: str) -> DocumentationTopic:
+    return DocumentationTopic(
+        id="files.connector-import-unavailable",
+        title="External file import is not currently available",
+        summary=message,
+        body=(
+            f"{message} Files never exposes connection endpoints, storage paths, credential references, or raw connector policies in user documentation."
+        ),
+        layer="available",
+        documentation_types=("user",),
+        order=41,
+        conditions=(
+            DocumentationCondition(
+                required_modules=("files",),
+                any_scopes=(_FILES_READ_SCOPE, _FILES_UPLOAD_SCOPE),
+            ),
+        ),
+        links=(DocumentationLink(label="Files", href="/files", kind="runtime"),),
+        source_module_id="files",
+        metadata={
+            "kind": "reference",
+            "screen": "Files",
+            "help_contexts": ["files.list", "files.connector-import"],
+            "limitations": [message],
+        },
+    )
+
+
+def _configured_positive_int(
+    settings: object | None, name: str, *, default: int
+) -> int | None:
+    raw_value = getattr(settings, name, default) if settings is not None else default
+    try:
+        value = int(raw_value)
+    except (TypeError, ValueError):
+        return None
+    return value if value > 0 else None
+
+
+def _format_byte_limit(value: int) -> str:
+    units = ((1024**3, "GiB"), (1024**2, "MiB"), (1024, "KiB"))
+    for divisor, label in units:
+        if value % divisor == 0:
+            return f"{value // divisor:,} {label} ({value:,} bytes)"
+    return f"{value:,} bytes"
+
+
+def _has_all_scopes(principal: object | None, scopes: tuple[str, ...]) -> bool:
+    checker = getattr(principal, "has", None)
+    if callable(checker):
+        try:
+            return all(bool(checker(scope)) for scope in scopes)
+        except Exception:
+            return False
+    granted = {str(scope) for scope in getattr(principal, "scopes", ())}
+    return all(scope in granted for scope in scopes)
+
+
+def _safe_text_attribute(value: object | None, name: str) -> str:
+    try:
+        result = getattr(value, name, "")
+    except Exception:
+        return ""
+    return str(result or "")
+
+
+def _principal_group_ids(principal: object) -> tuple[str, ...]:
+    try:
+        values = getattr(principal, "group_ids", ())
+    except Exception:
+        return ()
+    return tuple(str(value) for value in values if str(value))
+
+
+def _actor_group_ids(
+    session: Session,
+    *,
+    principal: object,
+    tenant_id: str,
+    user_id: str,
+    include_admin_groups: bool,
+) -> tuple[str, ...]:
+    try:
+        values = user_group_ids(
+            session,
+            tenant_id=tenant_id,
+            user_id=user_id,
+            include_admin_groups=include_admin_groups,
+        )
+    except Exception:
+        return _principal_group_ids(principal)
+    return tuple(str(value) for value in values if str(value))
+
+
+def _campaign_visibility(
+    context: DocumentationContext,
+    *,
+    session: Session,
+    tenant_id: str,
+    user_id: str,
+    group_ids: tuple[str, ...],
+):
+    principal = context.principal
+    registry = context.registry
+    if not _has_all_scopes(principal, ("campaigns:campaign:read",)):
+        return None
+    try:
+        if not registry.has_capability(CAPABILITY_CAMPAIGNS_ACCESS):
+            return None
+        capability = registry.require_capability(CAPABILITY_CAMPAIGNS_ACCESS)
+    except Exception:
+        return None
+    if not isinstance(capability, CampaignAccessProvider):
+        return None
+
+    def campaign_visible(campaign_id: str) -> bool:
+        try:
+            return capability.campaign_exists(
+                session, tenant_id=tenant_id, campaign_id=campaign_id
+            ) and capability.can_read_campaign(
+                session,
+                tenant_id=tenant_id,
+                campaign_id=campaign_id,
+                user_id=user_id,
+                group_ids=group_ids,
+                tenant_admin=_has_all_scopes(principal, ("tenant:*",)),
+            )
+        except Exception:
+            return False
+
+    return campaign_visible

src/govoplan_files/backend/manifest.py

@@ -13,6 +13,7 @@ from govoplan_core.core.modules import (
     DocumentationLink,
     DocumentationTopic,
     FrontendModule,
+    FrontendRoute,
     MigrationSpec,
     ModuleContext,
     ModuleInterfaceProvider,
@@ -22,15 +23,19 @@ from govoplan_core.core.modules import (
     PermissionDefinition,
     RoleTemplate,
 )
+from govoplan_core.core.views import ViewSurface
 from govoplan_core.db.base import Base
 from govoplan_files.backend.change_tracking import register_files_change_tracking
 from govoplan_files.backend.db import models as file_models  # noqa: F401 - populate Files ORM metadata
+from govoplan_files.backend.documentation import documentation_topics
 
 register_files_change_tracking()
 
 
 _files_table_retirement_provider = drop_table_retirement_provider(
     file_models.FileBlob,
+    file_models.FileIntegrityScan,
+    file_models.FileIntegrityFinding,
     file_models.FileFolder,
     file_models.FileAsset,
     file_models.FileVersion,
@@ -97,7 +102,7 @@ PERMISSIONS = (
     _permission("files:file:download", "Download files", "Download managed files and generated archives."),
     _permission("files:file:upload", "Upload files", "Upload new managed file versions."),
     _permission("files:file:organize", "Organize files", "Create folders, rename, move or copy managed files."),
-    _permission("files:file:share", "Share files", "Grant or revoke managed file shares."),
+    _permission("files:file:share", "Share files", "List, grant, update, expire, and revoke managed file shares."),
     _permission("files:file:delete", "Delete files", "Delete or hide managed files and folders where policy allows it."),
     _permission("files:file:admin", "Administer file spaces", "Administer all file spaces in the tenant."),
 )
@@ -137,6 +142,43 @@ def _tenant_summary(session, tenant_id: str) -> dict[str, int]:
     }
 
 
+def _tenant_summary_batch(session, tenant_ids) -> dict[str, dict[str, int]]:
+    from sqlalchemy import func
+
+    from govoplan_files.backend.db.models import FileAsset, FileConnectorCredential, FileConnectorPolicy, FileConnectorProfile, FileConnectorSpace
+
+    ids = tuple(dict.fromkeys(str(tenant_id) for tenant_id in tenant_ids if tenant_id))
+    if not ids:
+        return {}
+    counts: dict[str, dict[str, int]] = {
+        tenant_id: {
+            "files": 0,
+            "connector_credentials": 0,
+            "connector_policies": 0,
+            "connector_profiles": 0,
+            "connector_spaces": 0,
+        }
+        for tenant_id in ids
+    }
+    models = (
+        ("files", FileAsset),
+        ("connector_credentials", FileConnectorCredential),
+        ("connector_policies", FileConnectorPolicy),
+        ("connector_profiles", FileConnectorProfile),
+        ("connector_spaces", FileConnectorSpace),
+    )
+    for count_key, model in models:
+        rows = (
+            session.query(model.tenant_id, func.count(model.id))
+            .filter(model.tenant_id.in_(ids))
+            .group_by(model.tenant_id)
+            .all()
+        )
+        for tenant_id, count in rows:
+            counts[tenant_id][count_key] = int(count)
+    return counts
+
+
 def _veto_group_delete(session, tenant_id: str, group_id: str) -> None:
     from govoplan_files.backend.db.models import FileAsset, FileConnectorSpace, FileFolder, FileShare
 
@@ -186,84 +228,452 @@ manifest = ModuleManifest(
     route_factory=_files_router,
     role_templates=ROLE_TEMPLATES,
     tenant_summary_providers=(_tenant_summary,),
+    tenant_summary_batch_providers=(_tenant_summary_batch,),
     delete_veto_providers={"group": (_veto_group_delete,)},
     nav_items=(NavItem(path="/files", label="Files", icon="folder", required_any=("files:file:read",), order=40),),
     frontend=FrontendModule(
         module_id="files",
         package_name="@govoplan/files-webui",
+        routes=(
+            FrontendRoute(
+                path="/files",
+                component="FilesPage",
+                required_any=("files:file:read",),
+                order=40,
+            ),
+        ),
         nav_items=(NavItem(path="/files", label="Files", icon="folder", required_any=("files:file:read",), order=40),),
+        view_surfaces=(
+            ViewSurface(id="files.admin.system-connectors", module_id="files", kind="section", label="System file connections", order=75),
+            ViewSurface(id="files.admin.tenant-connectors", module_id="files", kind="section", label="Tenant file connections", order=65),
+            ViewSurface(id="files.admin.group-connectors", module_id="files", kind="section", label="Group file connections", order=65),
+            ViewSurface(id="files.admin.user-connectors", module_id="files", kind="section", label="User file connections", order=65),
+            ViewSurface(id="files.settings.connectors", module_id="files", kind="section", label="Personal file connections", order=20),
+            ViewSurface(id="files.widget.spaces", module_id="files", kind="section", label="File spaces widget", order=35),
+        ),
     ),
     documentation=(
         DocumentationTopic(
-            id="files.governed-connectors-and-provenance",
+            id="files.workflow.organize-managed-files",
-            title="Governed file connectors and source provenance",
+            title="Organize managed files and folders",
-            summary="Connector profiles control who may browse an external source, which destinations are permitted, and how imported files retain verifiable source context.",
+            summary="Create folders and rename, move, or copy accessible managed content with explicit conflict handling.",
             body=(
-                "Users select only connector profiles visible in their current scope and import remote content into managed Files storage before another module uses it. "
+                "Organization stays inside governed personal or group spaces. Moves preserve the asset identity, while copies create new assets and versions that reuse immutable blob bytes. "
-                "Administrators define profiles, separate credential references, and ordered system/tenant/owner policies; deny rules win and profile responses never expose secrets. "
+                "Every target conflict must be rejected, renamed, overwritten, or skipped explicitly."
-                "Deleting a database-managed profile or credential immediately scrubs Files-owned encrypted material and records a non-secret audit event in the same transaction; legacy non-owned external references are detached without provider calls. "
+            ),
-                "Operators control private-network access deployment-wide and must keep every remote connection pinned to a policy-validated DNS/IP answer. "
+            layer="configured",
-                "The built-in HTTP transport pins each connection and refuses redirects. Live S3 and SMB SDK access fails closed until S3 redirects and SMB DFS referrals can be revalidated and pinned. "
+            documentation_types=("user",),
-                "Successful imports store the connector id, provider, remote path and identity, source revision, and selected metadata as provenance on the managed file and its audit events."
+            audience=("file_user", "file_manager", "process_participant"),
+            order=42,
+            conditions=(
+                DocumentationCondition(
+                    required_modules=("files",),
+                    required_scopes=("files:file:read", "files:file:organize"),
+                ),
+            ),
+            links=(
+                DocumentationLink(label="Files", href="/files", kind="runtime"),
+                DocumentationLink(label="Move or copy API", href="/api/v1/files/transfer", kind="api"),
+                DocumentationLink(label="Files handbook", href="govoplan-files/docs/FILES_HANDBOOK.md", kind="repository"),
+            ),
+            unlocks=("Managed content can be placed at stable logical paths without bypassing space access.",),
+            metadata={
+                "kind": "workflow",
+                "route": "/files",
+                "screen": "Files",
+                "help_contexts": ["files.list"],
+                "prerequisites": [
+                    "You may view and organize managed files.",
+                    "You have write or owner access to every source item and destination space used by the operation; the global organize permission alone does not grant resource access.",
+                ],
+                "steps": [
+                    "Open Files and select the personal or group space to organize.",
+                    "Create the required destination folders or select the files and folders to rename, move, or copy.",
+                    "Choose the destination and resolve each target conflict explicitly.",
+                    "Apply the operation and reopen the destination folder.",
+                ],
+                "outcome": "The selected content has the intended governed owner and logical path.",
+                "verification": "Confirm each resulting path and owner; for a move, also confirm the old path is gone, and for a copy, confirm the source remains.",
+                "related_topic_ids": [
+                    "files.workflow.upload-managed-files",
+                    "files.workflow.find-and-download-files",
+                    "files.workflow.delete-managed-files",
+                ],
+            },
+        ),
+        DocumentationTopic(
+            id="files.workflow.find-and-download-files",
+            title="Find and download managed files",
+            summary="Search accessible managed content and download a current file version or a ZIP archive of a selection.",
+            body=(
+                "Files can be sorted and searched by logical path or name pattern. A download always uses the accessible current version; a multi-file selection can be generated as a temporary ZIP archive. "
+                "There is no dedicated content-preview service yet."
+            ),
+            layer="configured",
+            documentation_types=("user",),
+            audience=("file_user", "file_manager", "process_participant"),
+            order=43,
+            conditions=(
+                DocumentationCondition(
+                    required_modules=("files",),
+                    required_scopes=("files:file:read", "files:file:download"),
+                ),
+            ),
+            links=(
+                DocumentationLink(label="Files", href="/files", kind="runtime"),
+                DocumentationLink(label="Files handbook", href="govoplan-files/docs/FILES_HANDBOOK.md", kind="repository"),
+            ),
+            unlocks=("Authorized users can retrieve governed current versions without gaining organization or sharing authority.",),
+            metadata={
+                "kind": "workflow",
+                "route": "/files",
+                "screen": "Files",
+                "help_contexts": ["files.list"],
+                "prerequisites": ["You may view and download managed files in the relevant space."],
+                "steps": [
+                    "Open Files and select the relevant personal or group space.",
+                    "Navigate folders, sort the list, or use a path/name pattern to find the intended content.",
+                    "Review the displayed owner, path, size, checksum, and version details.",
+                    "Download one current file version, or select several files and choose Download ZIP.",
+                ],
+                "outcome": "The authorized current file bytes or generated archive are downloaded to the local device.",
+                "verification": "Confirm the downloaded names and, where integrity matters, compare the file bytes with the displayed checksum.",
+                "related_topic_ids": [
+                    "files.workflow.organize-managed-files",
+                    "files.reference.snapshot-provenance-and-capabilities",
+                ],
+            },
+        ),
+        DocumentationTopic(
+            id="files.workflow.share-managed-files",
+            title="Manage access to managed files",
+            summary="List, grant, update, expire, or revoke direct read, write, and manage access without changing ownership.",
+            body=(
+                "File owners and file administrators can manage direct shares for users, groups, the tenant, and Campaign. Expired and revoked grants stop authorizing access immediately while independent active grants remain effective. "
+                "The Files share dialog lists active and historical grants, and revocation is idempotent."
+            ),
+            layer="available",
+            documentation_types=("user",),
+            audience=("file_manager", "process_participant"),
+            order=44,
+            conditions=(
+                DocumentationCondition(
+                    required_modules=("files",),
+                    required_scopes=("files:file:read", "files:file:share"),
+                ),
+            ),
+            links=(
+                DocumentationLink(label="Files", href="/files", kind="runtime"),
+                DocumentationLink(label="List and manage shares", href="/api/v1/files/{file_id}/shares", kind="api"),
+                DocumentationLink(label="Files handbook", href="govoplan-files/docs/FILES_HANDBOOK.md", kind="repository"),
+            ),
+            related_modules=("campaigns",),
+            unlocks=("A supporting process can grant governed file access without changing file ownership.",),
+            metadata={
+                "kind": "workflow",
+                "route": "/files",
+                "screen": "Files",
+                "help_contexts": ["files.list"],
+                "prerequisites": [
+                    "You have the Files share permission and own the file, or administer file spaces for the active tenant.",
+                    "The intended user, group, tenant, or Campaign target exists and is active.",
+                ],
+                "steps": [
+                    "Select one managed file, choose Manage shares, and review the effective and historical direct grants.",
+                    "Select the intended user, group, or tenant and choose read, write, or manage access plus an optional expiry.",
+                    "Grant or update the share without changing file ownership.",
+                    "Revoke a grant when it is no longer needed; repeated revocation is a no-op.",
+                ],
+                "limitations": [
+                    "Campaign-target grants are normally created by the Campaign integration rather than selected manually in the Files dialog.",
+                    "A user may retain access through another active direct grant or ownership path after one share is revoked.",
+                ],
+                "outcome": "Direct access has the requested permission and lifetime while the managed asset keeps its owner.",
+                "verification": "Test one intended and one denied path, then expire or revoke the grant and verify that only independent access paths remain.",
+                "related_topic_ids": [
+                    "files.workflow.find-and-download-files",
+                    "files.assurance.process-and-release-readiness",
+                ],
+            },
+        ),
+        DocumentationTopic(
+            id="files.workflow.delete-managed-files",
+            title="Delete managed files and folders",
+            summary="Soft-delete accessible managed files or a folder tree where current policy allows it.",
+            body=(
+                "Deletion hides the selected managed assets rather than hard-purging their stored evidence. Folder deletion is recursive by default and includes child folders and files; a non-recursive request fails for a non-empty folder. "
+                "There is no self-service restore or hard-purge workflow today."
+            ),
+            layer="configured",
+            documentation_types=("user",),
+            audience=("file_user", "file_manager", "process_participant"),
+            order=45,
+            conditions=(
+                DocumentationCondition(
+                    required_modules=("files",),
+                    required_scopes=("files:file:read", "files:file:delete"),
+                ),
+            ),
+            links=(
+                DocumentationLink(label="Files", href="/files", kind="runtime"),
+                DocumentationLink(label="Files handbook", href="govoplan-files/docs/FILES_HANDBOOK.md", kind="repository"),
+            ),
+            unlocks=("Authorized users can remove obsolete content from active file views while preserving the current soft-delete boundary.",),
+            metadata={
+                "kind": "workflow",
+                "route": "/files",
+                "screen": "Files",
+                "help_contexts": ["files.list"],
+                "prerequisites": [
+                    "You may view and delete the selected managed content and have write or owner access to every affected asset or folder.",
+                    "You have reviewed the complete folder tree when deleting recursively.",
+                ],
+                "steps": [
+                    "Open Files and select the files or folder to delete.",
+                    "Review the selection and, for a folder, all content below it.",
+                    "Confirm the delete action.",
+                    "Refresh or reopen the space and verify that the selected paths are no longer active.",
+                ],
+                "limitations": [
+                    "Deletion is soft deletion, not a hard purge.",
+                    "There is no self-service restore or hard-purge workflow.",
+                ],
+                "outcome": "The selected content is hidden from active Files views under the current soft-delete model.",
+                "verification": "Confirm the deleted paths no longer appear in the active space; do not treat the action as physical erasure.",
+                "related_topic_ids": [
+                    "files.workflow.organize-managed-files",
+                    "files.assurance.process-and-release-readiness",
+                ],
+            },
+        ),
+        DocumentationTopic(
+            id="files.governed-connectors-and-provenance",
+            title="Govern file connections and credential deletion",
+            summary="Keep endpoint profiles, reusable credentials, and inherited connector policy separate, and understand what DELETE removes immediately.",
+            body=(
+                "System, tenant, and one user/group/campaign leaf form the effective policy chain: deny rules win and every configured allow rule must match. "
+                "Responses redact secret values and deployment references. Deleting a database-managed credential or profile immediately scrubs Files-owned encrypted material and private metadata in the same transaction as a non-secret audit event; dependent profiles are disabled, while legacy non-owned references are only detached and audited."
+            ),
+            layer="configured",
+            documentation_types=("admin",),
+            audience=("file_admin", "tenant_admin", "system_admin", "security_auditor"),
+            order=50,
+            conditions=(
+                DocumentationCondition(
+                    required_modules=("files",),
+                    any_scopes=(
+                        "files:file:admin",
+                        "admin:settings:read",
+                        "admin:settings:write",
+                        "system:settings:read",
+                        "system:settings:write",
+                    ),
+                ),
+            ),
+            links=(
+                DocumentationLink(label="Tenant connector administration", href="/admin?section=tenant-file-connectors", kind="runtime"),
+                DocumentationLink(label="System connector administration", href="/admin?section=system-file-connectors", kind="runtime"),
+                DocumentationLink(label="Tenant connector policy API", href="/api/v1/files/connectors/policies/tenant", kind="api"),
+                DocumentationLink(label="Connector credentials API", href="/api/v1/files/connectors/credentials", kind="api"),
+                DocumentationLink(label="Files handbook", href="govoplan-files/docs/FILES_HANDBOOK.md", kind="repository"),
+            ),
+            related_modules=("access", "audit", "mail"),
+            unlocks=("Scoped, explainable external-file access without exposing credentials to consuming modules.",),
+            configuration_keys=(
+                "GOVOPLAN_FILES_CONNECTOR_PROFILES_JSON",
+                "GOVOPLAN_FILES_CONNECTOR_PROFILES_FILE",
+                "GOVOPLAN_CONNECTOR_SECRET_ENV_ALLOWLIST",
+                "GOVOPLAN_CONNECTOR_CA_BUNDLE_ALLOWLIST",
+                "MASTER_KEY_B64",
+            ),
+            metadata={
+                "kind": "reference",
+                "route": "/admin?section=tenant-file-connectors",
+                "screen": "File connections",
+                "section": "Profiles, credentials, and effective connector policy",
+                "security_invariants": [
+                    "New API-managed external secret references fail closed until Files can prove ownership and provider-side deletion.",
+                    "Deletion and destructive retirement scrub Files-owned encrypted connector material before completion and emit non-secret audit evidence.",
+                    "Legacy non-owned external references are detached and audited, never sent to an arbitrary provider delete operation.",
+                ],
+                "related_topic_ids": [
+                    "files.workflow.import-managed-snapshot",
+                    "files.reference.integrity-recovery-and-fail-closed-transports",
+                    "mail.profiles-and-policy",
+                ],
+            },
+        ),
+        DocumentationTopic(
+            id="files.reference.integrity-recovery-and-fail-closed-transports",
+            title="Operate Files integrity, recovery, and connector transport safety",
+            summary="Back up database evidence, blob bytes, and the encryption key as one recovery unit, and keep unsupported SDK transports fail-closed.",
+            body=(
+                "Local durable storage is the operational baseline. Recover Files from a coordinated database/blob snapshot with the original master key, then run the bounded resumable integrity scan and verify representative access paths. Missing or mismatched blobs are quarantined; orphan objects are reported before dry-run-first, explicitly authorized cleanup. "
+                "Live S3 managed storage/connectors and SMB connectors fail closed until botocore redirects/endpoint discovery and SMB initial connections/DFS referrals support connection-time DNS/IP pinning. Destructive module retirement drops database tables but does not remove backend blob objects."
+            ),
+            layer="configured",
+            documentation_types=("admin",),
+            audience=("operator", "system_admin", "security_auditor"),
+            order=51,
+            conditions=(
+                DocumentationCondition(
+                    required_modules=("files",),
+                    any_scopes=(
+                        "files:file:admin",
+                        "admin:settings:read",
+                        "system:settings:read",
+                        "system:audit:read",
+                    ),
+                ),
+            ),
+            links=(
+                DocumentationLink(label="System file connections", href="/admin?section=system-file-connectors", kind="runtime"),
+                DocumentationLink(label="Connector provider status", href="/api/v1/files/connectors/providers", kind="api"),
+                DocumentationLink(label="Create an integrity scan", href="/api/v1/files/integrity/scans", kind="api"),
+                DocumentationLink(label="Files handbook", href="govoplan-files/docs/FILES_HANDBOOK.md", kind="repository"),
+            ),
+            related_modules=("audit", "ops"),
+            unlocks=("Recoverable managed-file evidence without weakening outbound peer validation.",),
+            configuration_keys=(
+                "FILE_STORAGE_BACKEND",
+                "FILE_STORAGE_LOCAL_ROOT",
+                "FILE_STORAGE_LOCAL_FALLBACK_ROOTS",
+                "FILE_UPLOAD_MAX_BYTES",
+                "FILE_UPLOAD_ZIP_MAX_BYTES",
+                "MASTER_KEY_B64",
+                "GOVOPLAN_CONNECTOR_ALLOW_PRIVATE_NETWORKS",
+                "GOVOPLAN_CONNECTOR_MAX_STRUCTURED_RESPONSE_BYTES",
+                "GOVOPLAN_CONNECTOR_MAX_FILE_TRANSFER_BYTES",
+            ),
+            metadata={
+                "kind": "reference",
+                "route": "/admin?section=system-file-connectors",
+                "screen": "System file connections and deployment operations",
+                "section": "Storage integrity, backup/recovery, and fail-closed transports",
+                "recovery_unit": ["Files database rows", "managed blob namespace", "MASTER_KEY_B64", "deployment-owned connector configuration"],
+                "verification": "After restore, complete a checksum-enabled integrity scan, resolve every missing/corrupt finding, approve or retain every reported orphan, verify authorized and denied access, and test one permitted pinned HTTP connector.",
+                "related_topic_ids": [
+                    "files.governed-connectors-and-provenance",
+                    "files.reference.snapshot-provenance-and-capabilities",
+                ],
+            },
+        ),
+        DocumentationTopic(
+            id="files.reference.snapshot-provenance-and-capabilities",
+            title="Integrate through managed snapshots and Files capabilities",
+            summary="Other modules consume stable Files capabilities or HTTP contracts and retain exact version evidence instead of importing Files internals.",
+            body=(
+                "Use files.access to explain resource access and files.campaign_attachments to freeze campaign inputs at an exact asset, version, blob, checksum, and source revision. "
+                "Import external content before a governed use, preserve provenance on derived snapshots, and keep collaboration, provider sync, OAuth, remote mutation, and domain workflow state in their owning modules."
+            ),
+            layer="available",
+            documentation_types=("admin", "user"),
+            audience=("module_integrator", "file_admin", "campaign_admin", "process_designer"),
+            order=52,
+            conditions=(
+                DocumentationCondition(
+                    required_modules=("files",),
+                    any_scopes=("files:file:read", "files:file:upload", "files:file:admin"),
+                ),
+            ),
+            links=(
+                DocumentationLink(label="Files", href="/files", kind="runtime"),
+                DocumentationLink(label="Files API", href="/api/v1/files", kind="api"),
+                DocumentationLink(label="Files handbook", href="govoplan-files/docs/FILES_HANDBOOK.md", kind="repository"),
+            ),
+            related_modules=("campaigns", "docs"),
+            unlocks=("Campaign, report, template, workflow, and document modules can exchange governed input/output snapshots.",),
+            metadata={
+                "kind": "reference",
+                "route": "/files",
+                "screen": "Files and module integration",
+                "section": "Managed snapshot provenance and capability boundaries",
+                "provided_interfaces": ["files.access@0.1.6", "files.campaign_attachments@0.1.6"],
+                "provenance_fields": ["connector_id", "provider", "external_id", "external_path", "revision", "metadata"],
+                "related_topic_ids": [
+                    "files.workflow.import-managed-snapshot",
+                    "files.governed-connectors-and-provenance",
+                    "files.reference.integrity-recovery-and-fail-closed-transports",
+                ],
+            },
+        ),
+        DocumentationTopic(
+            id="files.assurance.process-and-release-readiness",
+            title="Assure a Files-backed process and release",
+            summary="Check a process against the implemented Files boundary, exercise permitted and denied paths, and retain evidence before approving a release or operational use.",
+            body=(
+                "A process owner must distinguish implemented controls from planned capabilities before relying on Files. A release is not ready until all package and manifest versions align and representative authorization, upload limits, conflict handling, download, deletion, connector, and recovery paths have been exercised. "
+                "Current limitations include no self-service restore or hard purge, no enforced retention or legal hold, and no dedicated canonical audit event for every ordinary Files mutation. Share grant, change, expiry, and revocation operations do emit dedicated audit records. Record remaining limitations in the process assessment instead of treating soft deletion or change-sequence entries as stronger evidence."
             ),
             layer="configured",
             documentation_types=("admin", "user"),
-            audience=("file_user", "file_admin", "tenant_admin", "operator"),
+            audience=("process_owner", "release_manager", "file_admin", "operator", "security_auditor"),
-            order=42,
+            order=53,
             conditions=(
                 DocumentationCondition(
                     required_modules=("files",),
                     any_scopes=(
                         "files:file:read",
-                        "files:file:upload",
                         "files:file:admin",
                         "admin:settings:read",
                         "system:settings:read",
+                        "system:audit:read",
                     ),
                 ),
             ),
             links=(
                 DocumentationLink(label="Files", href="/files", kind="runtime"),
-                DocumentationLink(label="Tenant connector administration", href="/admin?section=tenant-file-connectors", kind="runtime"),
+                DocumentationLink(label="Files API", href="/api/v1/files", kind="api"),
-                DocumentationLink(label="Connector profiles API", href="/api/v1/files/connectors/profiles", kind="api"),
+                DocumentationLink(label="Connector provider status", href="/api/v1/files/connectors/providers", kind="api"),
-                DocumentationLink(label="Connector providers API", href="/api/v1/files/connectors/providers", kind="api"),
+                DocumentationLink(label="Files handbook", href="govoplan-files/docs/FILES_HANDBOOK.md", kind="repository"),
-                DocumentationLink(label="Tenant connector policy API", href="/api/v1/files/connectors/policies/tenant", kind="api"),
             ),
-            related_modules=("campaigns",),
+            related_modules=("campaigns", "audit", "ops"),
-            unlocks=("Campaigns can consume managed attachments while Files preserves frozen source provenance.",),
+            unlocks=("Process owners and release managers can approve Files use against explicit controls, evidence, and known gaps.",),
             configuration_keys=(
+                "FILE_STORAGE_BACKEND",
+                "FILE_STORAGE_LOCAL_ROOT",
+                "FILE_UPLOAD_MAX_BYTES",
+                "FILE_UPLOAD_ZIP_MAX_BYTES",
+                "MASTER_KEY_B64",
                 "GOVOPLAN_CONNECTOR_ALLOW_PRIVATE_NETWORKS",
-                "GOVOPLAN_FILES_CONNECTOR_PROFILES_JSON",
-                "GOVOPLAN_FILES_CONNECTOR_PROFILES_FILE",
-                "GOVOPLAN_CONNECTOR_SECRET_ENV_ALLOWLIST",
             ),
             metadata={
-                "kind": "reference",
+                "kind": "workflow",
-                "perspectives": {
+                "route": "/files",
-                    "user": "Choose a visible connection, browse it read-only, and import a selected file into managed storage before using it elsewhere.",
+                "screen": "Files process and release assurance",
-                    "admin": "Govern profile visibility, separate credential references, provider allow/deny policy, and permitted connector operations.",
+                "help_contexts": ["files.list"],
-                    "operator": "Control private-network access deployment-wide, provide credential and CA allowlists, and investigate fail-closed transport errors without weakening peer validation.",
+                "prerequisites": [
-                },
+                    "A named process owner has defined the intended users, data classification, retention expectations, and integrations.",
-                "security_invariants": [
+                    "A candidate release is installed on a clean database and an upgrade copy with aligned Python, root package, WebUI package, and module-manifest versions.",
-                    "Every network peer must be policy-validated and pinned at connection time.",
+                    "Representative permitted and denied accounts, bounded test files, and a coordinated database/blob/key recovery set are available.",
-                    "Redirects and protocol referrals must be rejected or independently revalidated and pinned.",
-                    "SDK transports that cannot provide those guarantees fail before client construction.",
-                    "New API-managed external secret references fail closed until Files can prove ownership and provider-side deletion.",
-                    "Deletion and destructive retirement scrub Files-owned encrypted connector material before completion and emit non-secret audit evidence.",
-                    "Legacy non-owned external references are detached and audited, never sent to an arbitrary provider delete operation.",
                 ],
-                "provenance_fields": [
+                "steps": [
-                    "connector_id",
+                    "Compare the process requirements with the handbook's implemented/planned boundary and record every unsupported requirement or compensating control.",
-                    "provider",
+                    "Confirm version alignment, apply migrations on clean and upgrade databases, and run the repository plus meta-repository security and static-analysis gates.",
-                    "external_id",
+                    "Exercise allowed and denied personal, group, and share access with representative accounts.",
-                    "external_path",
+                    "Exercise bounded upload and ZIP handling, every required conflict strategy, organization, download, and soft deletion.",
-                    "revision",
+                    "Where connectors are configured, verify policy explanation and one pinned HTTP provider; verify live S3 and SMB access still fails closed.",
-                    "metadata",
+                    "Restore a coordinated database/blob/key backup and compare representative downloaded bytes with their recorded SHA-256 checksums.",
+                    "Record the tested versions, results, known limitations, evidence locations, residual risks, owner, and approval decision.",
+                ],
+                "outcome": "The process or release has an explicit approval record tied to aligned versions, representative evidence, known limitations, and owned residual risks.",
+                "verification": "A reviewer can reproduce the recorded allow/deny, integrity, connector, and recovery checks and can trace each unmet requirement to a documented limitation or accepted compensating control.",
+                "related_topic_ids": [
+                    "files.workflow.upload-managed-files",
+                    "files.workflow.upload-and-unpack-zip",
+                    "files.workflow.organize-managed-files",
+                    "files.workflow.find-and-download-files",
+                    "files.workflow.share-managed-files",
+                    "files.workflow.delete-managed-files",
+                    "files.workflow.import-managed-snapshot",
+                    "files.governed-connectors-and-provenance",
+                    "files.reference.integrity-recovery-and-fail-closed-transports",
+                    "files.reference.snapshot-provenance-and-capabilities",
                 ],
-                "related_topic_ids": ["mail.profiles-and-policy"],
             },
         ),
     ),
+    documentation_providers=(documentation_topics,),
     migration_spec=MigrationSpec(
         module_id="files",
         metadata=Base.metadata,

src/govoplan_files/backend/migrations/versions/b8c9d0e1f2a4_file_share_lifecycle.py

@@ -0,0 +1,53 @@
+"""file share lifecycle
+
+Revision ID: b8c9d0e1f2a4
+Revises: a7b8c9d0e1f3
+Create Date: 2026-07-30 00:00:00.000000
+"""
+from __future__ import annotations
+
+from alembic import op
+import sqlalchemy as sa
+
+
+revision = "b8c9d0e1f2a4"
+down_revision = "a7b8c9d0e1f3"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    with op.batch_alter_table("file_shares") as batch_op:
+        batch_op.add_column(
+            sa.Column("expires_at", sa.DateTime(timezone=True), nullable=True)
+        )
+        batch_op.add_column(
+            sa.Column("revoked_by_user_id", sa.String(length=36), nullable=True)
+        )
+        batch_op.create_foreign_key(
+            op.f("fk_file_shares_revoked_by_user_id_access_users"),
+            "access_users",
+            ["revoked_by_user_id"],
+            ["id"],
+            ondelete="SET NULL",
+        )
+        batch_op.create_index(
+            op.f("ix_file_shares_expires_at"), ["expires_at"], unique=False
+        )
+        batch_op.create_index(
+            op.f("ix_file_shares_revoked_by_user_id"),
+            ["revoked_by_user_id"],
+            unique=False,
+        )
+
+
+def downgrade() -> None:
+    with op.batch_alter_table("file_shares") as batch_op:
+        batch_op.drop_index(op.f("ix_file_shares_revoked_by_user_id"))
+        batch_op.drop_index(op.f("ix_file_shares_expires_at"))
+        batch_op.drop_constraint(
+            op.f("fk_file_shares_revoked_by_user_id_access_users"),
+            type_="foreignkey",
+        )
+        batch_op.drop_column("revoked_by_user_id")
+        batch_op.drop_column("expires_at")

src/govoplan_files/backend/migrations/versions/c9d0e1f2a3b5_file_integrity_reconciliation.py

@@ -0,0 +1,168 @@
+"""file integrity reconciliation
+
+Revision ID: c9d0e1f2a3b5
+Revises: b8c9d0e1f2a4
+Create Date: 2026-07-30 00:00:00.000000
+"""
+from __future__ import annotations
+
+from alembic import op
+import sqlalchemy as sa
+
+
+revision = "c9d0e1f2a3b5"
+down_revision = "b8c9d0e1f2a4"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    with op.batch_alter_table("file_blobs") as batch_op:
+        batch_op.add_column(
+            sa.Column(
+                "integrity_status",
+                sa.String(length=30),
+                nullable=False,
+                server_default="unchecked",
+            )
+        )
+        batch_op.add_column(
+            sa.Column("integrity_checked_at", sa.DateTime(timezone=True), nullable=True)
+        )
+        batch_op.add_column(
+            sa.Column("integrity_failure", sa.String(length=100), nullable=True)
+        )
+        batch_op.add_column(
+            sa.Column("quarantined_at", sa.DateTime(timezone=True), nullable=True)
+        )
+        batch_op.create_index(
+            op.f("ix_file_blobs_integrity_status"),
+            ["integrity_status"],
+            unique=False,
+        )
+        batch_op.create_index(
+            op.f("ix_file_blobs_integrity_checked_at"),
+            ["integrity_checked_at"],
+            unique=False,
+        )
+        batch_op.create_index(
+            op.f("ix_file_blobs_quarantined_at"),
+            ["quarantined_at"],
+            unique=False,
+        )
+
+    op.create_table(
+        "file_integrity_scans",
+        sa.Column("id", sa.String(length=36), nullable=False),
+        sa.Column("tenant_id", sa.String(length=36), nullable=False),
+        sa.Column("storage_backend", sa.String(length=50), nullable=False),
+        sa.Column("storage_prefix", sa.String(length=1000), nullable=False),
+        sa.Column("status", sa.String(length=30), nullable=False),
+        sa.Column("phase", sa.String(length=30), nullable=False),
+        sa.Column("verify_checksums", sa.Boolean(), nullable=False),
+        sa.Column("batch_size", sa.Integer(), nullable=False),
+        sa.Column("blob_cursor", sa.String(length=36), nullable=True),
+        sa.Column("object_cursor", sa.String(length=1000), nullable=True),
+        sa.Column("scanned_blob_count", sa.Integer(), nullable=False),
+        sa.Column("verified_blob_count", sa.Integer(), nullable=False),
+        sa.Column("quarantined_blob_count", sa.Integer(), nullable=False),
+        sa.Column("scanned_object_count", sa.Integer(), nullable=False),
+        sa.Column("orphan_object_count", sa.Integer(), nullable=False),
+        sa.Column("created_by_user_id", sa.String(length=36), nullable=True),
+        sa.Column("started_at", sa.DateTime(timezone=True), nullable=True),
+        sa.Column("completed_at", sa.DateTime(timezone=True), nullable=True),
+        sa.Column("last_error", sa.String(length=255), nullable=True),
+        sa.Column("created_at", sa.DateTime(timezone=True), nullable=False),
+        sa.Column("updated_at", sa.DateTime(timezone=True), nullable=False),
+        sa.ForeignKeyConstraint(
+            ["created_by_user_id"],
+            ["access_users.id"],
+            name=op.f(
+                "fk_file_integrity_scans_created_by_user_id_access_users"
+            ),
+            ondelete="SET NULL",
+        ),
+        sa.PrimaryKeyConstraint("id", name=op.f("pk_file_integrity_scans")),
+    )
+    for column in ("tenant_id", "status", "created_by_user_id"):
+        op.create_index(
+            op.f(f"ix_file_integrity_scans_{column}"),
+            "file_integrity_scans",
+            [column],
+            unique=False,
+        )
+
+    op.create_table(
+        "file_integrity_findings",
+        sa.Column("id", sa.String(length=36), nullable=False),
+        sa.Column("scan_id", sa.String(length=36), nullable=False),
+        sa.Column("tenant_id", sa.String(length=36), nullable=False),
+        sa.Column("kind", sa.String(length=40), nullable=False),
+        sa.Column("state", sa.String(length=30), nullable=False),
+        sa.Column("blob_id", sa.String(length=36), nullable=True),
+        sa.Column("storage_key", sa.String(length=1000), nullable=False),
+        sa.Column("expected_size_bytes", sa.Integer(), nullable=True),
+        sa.Column("observed_size_bytes", sa.Integer(), nullable=True),
+        sa.Column("expected_checksum_sha256", sa.String(length=64), nullable=True),
+        sa.Column("observed_checksum_sha256", sa.String(length=64), nullable=True),
+        sa.Column("resolved_at", sa.DateTime(timezone=True), nullable=True),
+        sa.Column("resolved_by_user_id", sa.String(length=36), nullable=True),
+        sa.Column("created_at", sa.DateTime(timezone=True), nullable=False),
+        sa.Column("updated_at", sa.DateTime(timezone=True), nullable=False),
+        sa.ForeignKeyConstraint(
+            ["blob_id"],
+            ["file_blobs.id"],
+            name=op.f("fk_file_integrity_findings_blob_id_file_blobs"),
+            ondelete="SET NULL",
+        ),
+        sa.ForeignKeyConstraint(
+            ["resolved_by_user_id"],
+            ["access_users.id"],
+            name=op.f(
+                "fk_file_integrity_findings_resolved_by_user_id_access_users"
+            ),
+            ondelete="SET NULL",
+        ),
+        sa.ForeignKeyConstraint(
+            ["scan_id"],
+            ["file_integrity_scans.id"],
+            name=op.f(
+                "fk_file_integrity_findings_scan_id_file_integrity_scans"
+            ),
+            ondelete="CASCADE",
+        ),
+        sa.PrimaryKeyConstraint("id", name=op.f("pk_file_integrity_findings")),
+    )
+    for column in (
+        "scan_id",
+        "tenant_id",
+        "kind",
+        "state",
+        "blob_id",
+        "resolved_by_user_id",
+    ):
+        op.create_index(
+            op.f(f"ix_file_integrity_findings_{column}"),
+            "file_integrity_findings",
+            [column],
+            unique=False,
+        )
+    op.create_index(
+        "ix_file_integrity_findings_scan_state",
+        "file_integrity_findings",
+        ["scan_id", "state"],
+        unique=False,
+    )
+
+
+def downgrade() -> None:
+    op.drop_table("file_integrity_findings")
+    op.drop_table("file_integrity_scans")
+    with op.batch_alter_table("file_blobs") as batch_op:
+        batch_op.drop_index(op.f("ix_file_blobs_quarantined_at"))
+        batch_op.drop_index(op.f("ix_file_blobs_integrity_checked_at"))
+        batch_op.drop_index(op.f("ix_file_blobs_integrity_status"))
+        batch_op.drop_column("quarantined_at")
+        batch_op.drop_column("integrity_failure")
+        batch_op.drop_column("integrity_checked_at")
+        batch_op.drop_column("integrity_status")

src/govoplan_files/backend/routes/__init__.py

@@ -0,0 +1 @@
+"""Focused HTTP route modules for the Files API."""

src/govoplan_files/backend/routes/assets.py

@@ -0,0 +1,134 @@
+from __future__ import annotations
+
+from io import BytesIO
+from fastapi import APIRouter, Depends
+from fastapi.responses import StreamingResponse
+from sqlalchemy.orm import Session
+
+from govoplan_core.auth import ApiPrincipal, require_scope
+from govoplan_files.backend.schemas import (
+    BulkDeleteRequest,
+    BulkDeleteResponse,
+    FileAssetResponse,
+)
+from govoplan_core.db.session import get_session
+from govoplan_files.backend.storage.common import FileStorageError
+from govoplan_files.backend.storage.files import (
+    get_asset_for_user,
+    read_asset_bytes,
+    soft_delete_assets,
+)
+
+
+from govoplan_files.backend.route_support import (
+    _asset_response,
+    _attachment_disposition,
+    _audit_connector_event,
+    _http_error,
+    _is_admin,
+)
+
+router = APIRouter(prefix="/files", tags=["files"])
+
+
+@router.get("/{file_id}", response_model=FileAssetResponse)
+def get_file(
+    file_id: str,
+    session: Session = Depends(get_session),
+    principal: ApiPrincipal = Depends(require_scope("files:file:read")),
+):
+    try:
+        asset = get_asset_for_user(
+            session,
+            tenant_id=principal.tenant_id,
+            user_id=principal.user.id,
+            asset_id=file_id,
+            is_admin=_is_admin(principal),
+        )
+        return _asset_response(session, asset, include_shares=True)
+    except FileStorageError as exc:
+        raise _http_error(exc, not_found=True) from exc
+
+
+@router.get("/{file_id}/download")
+def download_file(
+    file_id: str,
+    session: Session = Depends(get_session),
+    principal: ApiPrincipal = Depends(require_scope("files:file:download")),
+):
+    try:
+        asset = get_asset_for_user(
+            session,
+            tenant_id=principal.tenant_id,
+            user_id=principal.user.id,
+            asset_id=file_id,
+            is_admin=_is_admin(principal),
+        )
+        data, version, blob = read_asset_bytes(session, asset)
+        _audit_connector_event(
+            session,
+            principal,
+            action="files.connector.accessed",
+            asset=asset,
+            version=version,
+            blob=blob,
+            operation="download",
+            commit=True,
+        )
+    except FileStorageError as exc:
+        raise _http_error(exc, not_found=True) from exc
+    headers = {"Content-Disposition": _attachment_disposition(asset.filename)}
+    return StreamingResponse(
+        BytesIO(data),
+        media_type=blob.content_type or "application/octet-stream",
+        headers=headers,
+    )
+
+
+@router.delete("/{file_id}", response_model=BulkDeleteResponse)
+def delete_file(
+    file_id: str,
+    session: Session = Depends(get_session),
+    principal: ApiPrincipal = Depends(require_scope("files:file:delete")),
+):
+    try:
+        asset = get_asset_for_user(
+            session,
+            tenant_id=principal.tenant_id,
+            user_id=principal.user.id,
+            asset_id=file_id,
+            require_write=True,
+            is_admin=_is_admin(principal),
+        )
+        count = soft_delete_assets(session, [asset])
+        session.commit()
+        return BulkDeleteResponse(deleted_count=count)
+    except FileStorageError as exc:
+        session.rollback()
+        raise _http_error(exc, not_found=True) from exc
+
+
+@router.post("/bulk-delete", response_model=BulkDeleteResponse)
+def bulk_delete_files(
+    payload: BulkDeleteRequest,
+    session: Session = Depends(get_session),
+    principal: ApiPrincipal = Depends(require_scope("files:file:delete")),
+):
+    try:
+        assets = [
+            get_asset_for_user(
+                session,
+                tenant_id=principal.tenant_id,
+                user_id=principal.user.id,
+                asset_id=file_id,
+                require_write=True,
+                is_admin=_is_admin(principal),
+            )
+            for file_id in payload.file_ids
+        ]
+        count = soft_delete_assets(session, assets)
+        session.commit()
+        return BulkDeleteResponse(deleted_count=count)
+    except FileStorageError as exc:
+        session.rollback()
+        raise _http_error(exc) from exc

src/govoplan_files/backend/routes/connector_io.py

@@ -0,0 +1,252 @@
+from __future__ import annotations
+
+import json
+from fastapi import APIRouter, Depends, HTTPException, status
+from sqlalchemy.orm import Session
+
+from govoplan_core.auth import ApiPrincipal, require_any_scope, require_scope
+from govoplan_files.backend.schemas import (
+    FileConnectorBrowseItem,
+    FileConnectorBrowseResponse,
+    FileConnectorImportRequest,
+    FileConnectorSyncResponse,
+    FileUploadResponse,
+)
+from govoplan_core.db.session import get_session
+from govoplan_files.backend.storage.paths import UnsafeFilePathError
+from govoplan_files.backend.storage.common import FileStorageError
+from govoplan_files.backend.storage.connector_browse import (
+    ConnectorBrowseError,
+    ConnectorBrowseUnsupported,
+    browse_connector_profile,
+    normalize_connector_browse_path,
+)
+from govoplan_files.backend.storage.connector_imports import (
+    ConnectorImportError,
+    ConnectorImportUnsupported,
+)
+from govoplan_files.backend.storage.connector_deployment import (
+    connector_effective_endpoint_url,
+)
+from govoplan_files.backend.storage.connector_policy import (
+    ConnectorAccessRequest,
+    ConnectorPolicyDenied,
+    connector_policy_decision,
+)
+from govoplan_files.backend.storage.files import (
+    create_file_asset,
+    sync_file_asset_from_source,
+)
+
+
+from govoplan_files.backend.route_support import (
+    _asset_response,
+    _audit_connector_imports,
+    _audit_connector_sync,
+    _connector_browse_next_token,
+    _connector_policy_error,
+    _download_connector_payload,
+    _ensure_campaign_file_access,
+    _http_error,
+    _is_admin,
+    _visible_connector_profile,
+)
+
+router = APIRouter(prefix="/files", tags=["files"])
+
+
+@router.post(
+    "/connectors/profiles/{profile_id}/import", response_model=FileUploadResponse
+)
+def import_connector_file(
+    profile_id: str,
+    payload: FileConnectorImportRequest,
+    session: Session = Depends(get_session),
+    principal: ApiPrincipal = Depends(require_scope("files:file:upload")),
+):
+    try:
+        if payload.campaign_id:
+            _ensure_campaign_file_access(session, principal, payload.campaign_id)
+        profile = _visible_connector_profile(
+            session, principal, profile_id, campaign_id=payload.campaign_id
+        )
+        _source_path, downloaded, metadata = _download_connector_payload(
+            profile, payload, operation="import"
+        )
+        target_owner = payload.owner_id or principal.user.id
+        stored = create_file_asset(
+            session,
+            tenant_id=principal.tenant_id,
+            owner_type=payload.owner_type,
+            owner_id=target_owner,
+            user_id=principal.user.id,
+            filename=downloaded.filename,
+            data=downloaded.data,
+            folder=payload.target_folder,
+            display_path=payload.target_path,
+            content_type=downloaded.content_type,
+            metadata=metadata,
+            campaign_id=payload.campaign_id,
+            conflict_strategy=payload.conflict_strategy,
+            is_admin=_is_admin(principal),
+        )
+        _audit_connector_imports(session, principal, [stored.asset])
+        session.commit()
+    except ConnectorPolicyDenied as exc:
+        session.rollback()
+        raise _connector_policy_error(exc) from exc
+    except ConnectorImportUnsupported as exc:
+        session.rollback()
+        raise HTTPException(
+            status_code=status.HTTP_501_NOT_IMPLEMENTED, detail=str(exc)
+        ) from exc
+    except (
+        ConnectorImportError,
+        FileStorageError,
+        UnsafeFilePathError,
+        ValueError,
+        json.JSONDecodeError,
+    ) as exc:
+        session.rollback()
+        raise _http_error(exc) from exc
+    return FileUploadResponse(
+        files=[_asset_response(session, stored.asset, include_shares=True)]
+    )
+
+
+@router.post(
+    "/connectors/profiles/{profile_id}/sync", response_model=FileConnectorSyncResponse
+)
+def sync_connector_file(
+    profile_id: str,
+    payload: FileConnectorImportRequest,
+    session: Session = Depends(get_session),
+    principal: ApiPrincipal = Depends(require_scope("files:file:upload")),
+):
+    try:
+        if payload.campaign_id:
+            _ensure_campaign_file_access(session, principal, payload.campaign_id)
+        profile = _visible_connector_profile(
+            session, principal, profile_id, campaign_id=payload.campaign_id
+        )
+        _source_path, downloaded, metadata = _download_connector_payload(
+            profile, payload, operation="sync"
+        )
+        target_owner = payload.owner_id or principal.user.id
+        stored, sync_action, previous_version_id = sync_file_asset_from_source(
+            session,
+            tenant_id=principal.tenant_id,
+            owner_type=payload.owner_type,
+            owner_id=target_owner,
+            user_id=principal.user.id,
+            filename=downloaded.filename,
+            data=downloaded.data,
+            folder=payload.target_folder,
+            display_path=payload.target_path,
+            content_type=downloaded.content_type,
+            metadata=metadata,
+            campaign_id=payload.campaign_id,
+            conflict_strategy=payload.conflict_strategy,
+            is_admin=_is_admin(principal),
+        )
+        _audit_connector_sync(
+            session,
+            principal,
+            stored.asset,
+            sync_action=sync_action,
+            previous_version_id=previous_version_id,
+        )
+        session.commit()
+    except ConnectorPolicyDenied as exc:
+        session.rollback()
+        raise _connector_policy_error(exc) from exc
+    except ConnectorImportUnsupported as exc:
+        session.rollback()
+        raise HTTPException(
+            status_code=status.HTTP_501_NOT_IMPLEMENTED, detail=str(exc)
+        ) from exc
+    except (
+        ConnectorImportError,
+        FileStorageError,
+        UnsafeFilePathError,
+        ValueError,
+        json.JSONDecodeError,
+    ) as exc:
+        session.rollback()
+        raise _http_error(exc) from exc
+    return FileConnectorSyncResponse(
+        file=_asset_response(session, stored.asset, include_shares=True),
+        action=sync_action,
+        previous_version_id=previous_version_id,
+        current_version_id=stored.version.id,
+    )
+
+
+@router.get(
+    "/connectors/profiles/{profile_id}/browse",
+    response_model=FileConnectorBrowseResponse,
+)
+def browse_connector_profile_items(
+    profile_id: str,
+    path: str | None = None,
+    library_id: str | None = None,
+    continuation_token: str | None = None,
+    campaign_id: str | None = None,
+    session: Session = Depends(get_session),
+    principal: ApiPrincipal = Depends(
+        require_any_scope(
+            "files:file:read",
+            "files:file:upload",
+            "files:file:download",
+            "files:file:admin",
+            "system:settings:read",
+            "admin:settings:read",
+        )
+    ),
+):
+    try:
+        profile = _visible_connector_profile(
+            session, principal, profile_id, campaign_id=campaign_id
+        )
+        browse_path = normalize_connector_browse_path(path)
+        decision = connector_policy_decision(
+            ConnectorAccessRequest(
+                connector_id=profile.id,
+                credential_id=profile.credential_profile_id,
+                provider=profile.provider,
+                external_path=browse_path,
+                external_url=connector_effective_endpoint_url(
+                    provider=profile.provider,
+                    endpoint_url=profile.endpoint_url,
+                    metadata=profile.metadata,
+                ),
+                operation="browse",
+            ),
+            profile.policy_sources,
+        )
+        if not decision.allowed:
+            raise ConnectorPolicyDenied(decision)
+        items = browse_connector_profile(
+            profile,
+            path=browse_path,
+            library_id=library_id,
+            continuation_token=continuation_token,
+        )
+    except ConnectorPolicyDenied as exc:
+        raise _connector_policy_error(exc) from exc
+    except ConnectorBrowseUnsupported as exc:
+        raise HTTPException(
+            status_code=status.HTTP_501_NOT_IMPLEMENTED, detail=str(exc)
+        ) from exc
+    except (ConnectorBrowseError, OSError, ValueError, json.JSONDecodeError) as exc:
+        raise _http_error(exc) from exc
+    return FileConnectorBrowseResponse(
+        profile_id=profile.id,
+        provider=profile.provider,
+        path=browse_path,
+        library_id=library_id,
+        next_continuation_token=_connector_browse_next_token(items),
+        has_more=any(bool(item.metadata.get("listing_truncated")) for item in items),
+        decision=decision.to_dict(),
+        items=[FileConnectorBrowseItem(**item.to_response()) for item in items],
+    )

src/govoplan_files/backend/routes/connector_profiles.py

@@ -0,0 +1,261 @@
+from __future__ import annotations
+
+import json
+from fastapi import APIRouter, Depends
+from sqlalchemy.orm import Session
+
+from govoplan_core.auth import ApiPrincipal, require_any_scope
+from govoplan_files.backend.change_tracking import (
+    FILES_CONNECTOR_PROFILES_COLLECTION,
+)
+from govoplan_files.backend.schemas import (
+    FileConnectorProfileResponse,
+    FileConnectorProfileUpdateRequest,
+)
+from govoplan_core.db.session import get_session
+from govoplan_files.backend.storage.common import FileStorageError
+from govoplan_files.backend.storage.connector_credential_deletion import (
+    delete_connector_profile_row,
+)
+from govoplan_files.backend.storage.connector_deployment import (
+    connector_effective_endpoint_url,
+)
+from govoplan_files.backend.storage.connector_profile_store import (
+    connector_profile_from_row,
+    get_connector_profile_row,
+    update_connector_profile_row,
+)
+from govoplan_files.backend.storage.connector_policy import (
+    ConnectorPolicyDenied,
+)
+
+
+from govoplan_files.backend.route_support import (
+    FILES_CONNECTOR_PROFILE_RESOURCE,
+    _can_read_disabled_connector_profiles,
+    _connector_policy_error,
+    _credential_row_for_profile,
+    _ensure_connector_configuration_allowed,
+    _ensure_connector_local_policy_allowed,
+    _http_error,
+    _record_connector_settings_change,
+    _require_connector_profile_write,
+    _visible_connector_profile,
+)
+
+router = APIRouter(prefix="/files", tags=["files"])
+
+
+@router.get(
+    "/connectors/profiles/{profile_id}", response_model=FileConnectorProfileResponse
+)
+def get_connector_profile(
+    profile_id: str,
+    campaign_id: str | None = None,
+    include_disabled: bool = False,
+    session: Session = Depends(get_session),
+    principal: ApiPrincipal = Depends(
+        require_any_scope(
+            "files:file:read",
+            "files:file:upload",
+            "files:file:download",
+            "files:file:admin",
+            "system:settings:read",
+            "admin:settings:read",
+        )
+    ),
+):
+    try:
+        profile = _visible_connector_profile(
+            session,
+            principal,
+            profile_id,
+            campaign_id=campaign_id,
+            include_disabled=include_disabled
+            and _can_read_disabled_connector_profiles(principal),
+            include_effective_policy=False,
+        )
+    except (OSError, ValueError, json.JSONDecodeError) as exc:
+        raise _http_error(exc) from exc
+    return FileConnectorProfileResponse(**profile.to_response())
+
+
+@router.patch(
+    "/connectors/profiles/{profile_id}", response_model=FileConnectorProfileResponse
+)
+def update_connector_profile(
+    profile_id: str,
+    payload: FileConnectorProfileUpdateRequest,
+    session: Session = Depends(get_session),
+    principal: ApiPrincipal = Depends(
+        require_any_scope(
+            "files:file:admin", "system:settings:write", "admin:settings:write"
+        )
+    ),
+):
+    try:
+        row = get_connector_profile_row(
+            session,
+            tenant_id=principal.tenant_id,
+            profile_id=profile_id,
+            include_disabled=True,
+        )
+    except FileStorageError as exc:
+        raise _http_error(exc, not_found=True) from exc
+    _require_connector_profile_write(principal, row.scope_type)
+    credentials = payload.credentials
+    try:
+        credential_profile_id = (
+            payload.credential_profile_id
+            if payload.credential_profile_id is not None
+            else row.credential_profile_id
+        )
+        provider = payload.provider if payload.provider is not None else row.provider
+        credential_row = _credential_row_for_profile(
+            session,
+            principal,
+            credential_profile_id=credential_profile_id,
+            provider=provider,
+            profile_id=row.id,
+            scope_type=row.scope_type,
+            scope_id=row.scope_id,
+            include_disabled=True,
+        )
+        _ensure_connector_configuration_allowed(
+            session,
+            principal,
+            connector_id=row.id,
+            credential_id=credential_profile_id,
+            provider=provider,
+            endpoint_url=connector_effective_endpoint_url(
+                provider=provider,
+                endpoint_url=payload.endpoint_url
+                if payload.endpoint_url is not None
+                else row.endpoint_url,
+                metadata=payload.metadata
+                if payload.metadata is not None
+                else row.metadata_,
+            ),
+            base_path=payload.base_path
+            if payload.base_path is not None
+            else row.base_path,
+            scope_type=row.scope_type,
+            scope_id=row.scope_id,
+            operation="configure",
+        )
+        if payload.policy is not None:
+            _ensure_connector_local_policy_allowed(
+                session,
+                principal,
+                scope_type=row.scope_type,
+                scope_id=row.scope_id,
+                policy=payload.policy,
+            )
+        update_connector_profile_row(
+            session,
+            row,
+            user_id=principal.user.id,
+            label=payload.label,
+            provider=payload.provider,
+            endpoint_url=payload.endpoint_url,
+            base_path=payload.base_path,
+            enabled=payload.enabled,
+            credential_profile_id=payload.credential_profile_id,
+            credential_mode=payload.credential_mode,
+            username=credentials.username if credentials else None,
+            password=credentials.password if credentials else None,
+            token=credentials.token if credentials else None,
+            password_env=credentials.password_env if credentials else None,
+            token_env=credentials.token_env if credentials else None,
+            secret_ref=credentials.secret_ref if credentials else None,
+            clear_password=payload.clear_password,
+            clear_token=payload.clear_token,
+            capabilities=payload.capabilities,
+            policy=payload.policy,
+            metadata=payload.metadata,
+        )
+        _record_connector_settings_change(
+            session,
+            collection=FILES_CONNECTOR_PROFILES_COLLECTION,
+            resource_type=FILES_CONNECTOR_PROFILE_RESOURCE,
+            resource_id=row.id,
+            operation="updated",
+            principal=principal,
+            tenant_id=row.tenant_id,
+            payload={
+                "scope_type": row.scope_type,
+                "scope_id": row.scope_id,
+                "provider": row.provider,
+            },
+        )
+        session.commit()
+        session.refresh(row)
+        return FileConnectorProfileResponse(
+            **connector_profile_from_row(
+                row, credential_row=credential_row
+            ).to_response()
+        )
+    except ConnectorPolicyDenied as exc:
+        session.rollback()
+        raise _connector_policy_error(exc) from exc
+    except (FileStorageError, ValueError, json.JSONDecodeError) as exc:
+        session.rollback()
+        raise _http_error(exc) from exc
+
+
+@router.delete(
+    "/connectors/profiles/{profile_id}", response_model=FileConnectorProfileResponse
+)
+def deactivate_connector_profile(
+    profile_id: str,
+    session: Session = Depends(get_session),
+    principal: ApiPrincipal = Depends(
+        require_any_scope(
+            "files:file:admin", "system:settings:write", "admin:settings:write"
+        )
+    ),
+):
+    try:
+        row = get_connector_profile_row(
+            session,
+            tenant_id=principal.tenant_id,
+            profile_id=profile_id,
+            include_disabled=True,
+        )
+    except FileStorageError as exc:
+        raise _http_error(exc, not_found=True) from exc
+    _require_connector_profile_write(principal, row.scope_type)
+    try:
+        changed = delete_connector_profile_row(
+            session,
+            row,
+            deletion_reason="api_delete",
+            user_id=principal.user.id,
+            api_key_id=principal.api_key.id if principal.api_key else None,
+        )
+        if changed:
+            _record_connector_settings_change(
+                session,
+                collection=FILES_CONNECTOR_PROFILES_COLLECTION,
+                resource_type=FILES_CONNECTOR_PROFILE_RESOURCE,
+                resource_id=row.id,
+                operation="deleted",
+                principal=principal,
+                tenant_id=row.tenant_id,
+                payload={
+                    "scope_type": row.scope_type,
+                    "scope_id": row.scope_id,
+                    "provider": row.provider,
+                },
+            )
+        session.commit()
+        session.refresh(row)
+        return FileConnectorProfileResponse(
+            **connector_profile_from_row(row).to_response()
+        )
+    except FileStorageError as exc:
+        session.rollback()
+        raise _http_error(exc) from exc
+    except Exception:
+        session.rollback()
+        raise

src/govoplan_files/backend/routes/connector_settings.py

@@ -0,0 +1,852 @@
+from __future__ import annotations
+
+import json
+from typing import Literal
+from fastapi import APIRouter, Depends, Query, status
+from sqlalchemy.orm import Session
+
+from govoplan_core.auth import ApiPrincipal, require_any_scope
+from govoplan_files.backend.change_tracking import (
+    FILES_CONNECTOR_CREDENTIALS_COLLECTION,
+    FILES_CONNECTOR_POLICIES_COLLECTION,
+    FILES_CONNECTOR_PROFILES_COLLECTION,
+)
+from govoplan_files.backend.schemas import (
+    FileConnectorCredentialCreateRequest,
+    FileConnectorCredentialResponse,
+    FileConnectorCredentialsResponse,
+    FileConnectorCredentialUpdateRequest,
+    FileConnectorDiscoveryRequest,
+    FileConnectorDiscoveryResponse,
+    FileConnectorSettingsDeltaResponse,
+    FileConnectorPolicyEvaluateRequest,
+    FileConnectorPolicyEvaluateResponse,
+    FileConnectorPolicyResponse,
+    FileConnectorPolicyUpdateRequest,
+    FileConnectorProfileCreateRequest,
+    FileConnectorProfileResponse,
+    FileConnectorProfilesResponse,
+    FileConnectorProviderResponse,
+    FileConnectorProvidersResponse,
+)
+from govoplan_core.db.session import get_session
+from govoplan_files.backend.storage.common import FileStorageError
+from govoplan_files.backend.storage.connector_credential_store import (
+    create_connector_credential_row,
+    get_connector_credential_row,
+    list_database_connector_credentials,
+    update_connector_credential_row,
+)
+from govoplan_files.backend.storage.connector_credential_deletion import (
+    delete_connector_credential_row,
+)
+from govoplan_files.backend.storage.connector_browse import (
+    ConnectorBrowseError,
+    ConnectorBrowseUnsupported,
+    browse_connector_profile,
+)
+from govoplan_files.backend.storage.connector_deployment import (
+    connector_effective_endpoint_url,
+    reject_api_controlled_deployment_references,
+)
+from govoplan_files.backend.storage.connector_profile_store import (
+    connector_profile_from_row,
+    create_connector_profile_row,
+)
+from govoplan_files.backend.storage.connector_providers import (
+    connector_provider_descriptors,
+)
+from govoplan_files.backend.storage.connector_policy import (
+    ConnectorAccessRequest,
+    ConnectorPolicyDenied,
+    connector_policy_decision,
+    connector_policy_sources_from_payload,
+)
+from govoplan_files.backend.storage.connector_policy_store import (
+    connector_policy_response,
+    set_connector_policy,
+)
+
+
+from govoplan_files.backend.route_support import (
+    FILES_CONNECTOR_CREDENTIAL_RESOURCE,
+    FILES_CONNECTOR_POLICY_RESOURCE,
+    FILES_CONNECTOR_PROFILE_RESOURCE,
+    _audit_connector_discovery_attempt,
+    _can_read_disabled_connector_profiles,
+    _connector_credential_response,
+    _connector_policy_error,
+    _credential_row_for_profile,
+    _discovery_profile_from_payload,
+    _ensure_campaign_file_access,
+    _ensure_connector_configuration_allowed,
+    _ensure_connector_credential_configuration_allowed,
+    _ensure_connector_local_policy_allowed,
+    _file_connector_policy_resource_id,
+    _file_connector_settings_entries,
+    _http_error,
+    _record_connector_settings_change,
+    _require_connector_credential_write,
+    _require_connector_policy_read,
+    _require_connector_profile_write,
+    _same_endpoint,
+    _visible_connector_profiles,
+    _webdav_discovery_candidates,
+)
+from govoplan_files.backend.services.connector_settings_delta import (
+    _full_file_connector_settings_delta_response,
+    _incremental_file_connector_settings_delta_response,
+)
+
+router = APIRouter(prefix="/files", tags=["files"])
+
+
+@router.post(
+    "/connector-policy/evaluate", response_model=FileConnectorPolicyEvaluateResponse
+)
+def evaluate_connector_policy(
+    payload: FileConnectorPolicyEvaluateRequest,
+    principal: ApiPrincipal = Depends(
+        require_any_scope("files:file:read", "files:file:upload", "files:file:download")
+    ),
+):
+    del principal
+    sources = connector_policy_sources_from_payload(
+        [item.model_dump(mode="json") for item in payload.policy_sources]
+    )
+    request = ConnectorAccessRequest.from_provenance(
+        payload.source_provenance.model_dump(mode="json", exclude_none=True),
+        operation=payload.operation,
+    )
+    return FileConnectorPolicyEvaluateResponse(
+        decision=connector_policy_decision(request, sources).to_dict()
+    )
+
+
+@router.get(
+    "/connectors/settings/delta", response_model=FileConnectorSettingsDeltaResponse
+)
+def connector_settings_delta(
+    scope_type: str = Query(default="tenant"),
+    scope_id: str | None = Query(default=None),
+    provider: str | None = None,
+    campaign_id: str | None = None,
+    include_disabled: bool = False,
+    include_inactive: bool = False,
+    owner_type: Literal["user", "group"] | None = None,
+    owner_id: str | None = None,
+    since: str | None = None,
+    limit: int = Query(default=100, ge=1, le=500),
+    session: Session = Depends(get_session),
+    principal: ApiPrincipal = Depends(
+        require_any_scope(
+            "files:file:admin", "system:settings:read", "admin:settings:read"
+        )
+    ),
+):
+    scope_type = scope_type.strip().casefold()
+    _require_connector_policy_read(principal, scope_type)
+    try:
+        if since is None:
+            return _full_file_connector_settings_delta_response(
+                session,
+                principal,
+                scope_type=scope_type,
+                scope_id=scope_id,
+                provider=provider,
+                campaign_id=campaign_id,
+                include_disabled=include_disabled,
+                include_inactive=include_inactive,
+                owner_type=owner_type,
+                owner_id=owner_id,
+            )
+        entries, has_more = _file_connector_settings_entries(
+            session, tenant_id=principal.tenant_id, since=since, limit=limit
+        )
+        if entries is None:
+            return _full_file_connector_settings_delta_response(
+                session,
+                principal,
+                scope_type=scope_type,
+                scope_id=scope_id,
+                provider=provider,
+                campaign_id=campaign_id,
+                include_disabled=include_disabled,
+                include_inactive=include_inactive,
+                owner_type=owner_type,
+                owner_id=owner_id,
+            )
+        return _incremental_file_connector_settings_delta_response(
+            session,
+            principal,
+            entries=entries,
+            has_more=has_more,
+            scope_type=scope_type,
+            scope_id=scope_id,
+            provider=provider,
+            campaign_id=campaign_id,
+            include_disabled=include_disabled,
+            include_inactive=include_inactive,
+            owner_type=owner_type,
+            owner_id=owner_id,
+        )
+    except (FileStorageError, ValueError, json.JSONDecodeError) as exc:
+        raise _http_error(exc) from exc
+
+
+@router.get("/connectors/providers", response_model=FileConnectorProvidersResponse)
+def list_connector_providers(
+    principal: ApiPrincipal = Depends(
+        require_any_scope("files:file:read", "files:file:upload", "files:file:admin")
+    ),
+):
+    del principal
+    return FileConnectorProvidersResponse(
+        providers=[
+            FileConnectorProviderResponse(**item.to_response())
+            for item in connector_provider_descriptors()
+        ]
+    )
+
+
+@router.post("/connectors/discover", response_model=FileConnectorDiscoveryResponse)
+def discover_connector_endpoint(
+    payload: FileConnectorDiscoveryRequest,
+    session: Session = Depends(get_session),
+    principal: ApiPrincipal = Depends(
+        require_any_scope(
+            "files:file:admin", "system:settings:write", "admin:settings:write"
+        )
+    ),
+):
+    try:
+        reject_api_controlled_deployment_references(
+            password_env=payload.credentials.password_env,
+            token_env=payload.credentials.token_env,
+            secret_ref=payload.credentials.secret_ref,
+            metadata=payload.metadata,
+        )
+    except ValueError as exc:
+        raise _http_error(exc) from exc
+    if payload.provider not in {"webdav", "nextcloud"}:
+        return FileConnectorDiscoveryResponse(
+            provider=payload.provider,
+            endpoint_url=None,
+            base_path=payload.base_path,
+            status="unsupported",
+            message=f"Discovery is not implemented for {payload.provider} connectors yet",
+        )
+    candidates: list[dict[str, str]] = []
+    for endpoint_url in _webdav_discovery_candidates(payload):
+        profile = _discovery_profile_from_payload(
+            payload, endpoint_url, principal=principal
+        )
+        try:
+            _ensure_connector_configuration_allowed(
+                session,
+                principal,
+                connector_id=None,
+                credential_id=None,
+                provider=profile.provider,
+                endpoint_url=endpoint_url,
+                base_path=profile.base_path,
+                scope_type="tenant",
+                scope_id=principal.tenant_id,
+                operation="discover",
+            )
+            _audit_connector_discovery_attempt(
+                session,
+                principal,
+                provider=profile.provider,
+                endpoint_url=endpoint_url,
+                base_path=profile.base_path,
+            )
+            browse_connector_profile(profile, path=payload.base_path or "")
+        except ConnectorPolicyDenied as exc:
+            raise _connector_policy_error(exc) from exc
+        except (
+            ConnectorBrowseError,
+            ConnectorBrowseUnsupported,
+            OSError,
+            ValueError,
+            json.JSONDecodeError,
+        ) as exc:
+            message = str(exc)
+            if "credentials were rejected" in message.casefold():
+                if payload.require_valid_credentials:
+                    candidates.append(
+                        {
+                            "endpoint_url": endpoint_url,
+                            "status": "credentials_rejected",
+                            "message": "The endpoint exists, but the credentials were rejected.",
+                        }
+                    )
+                    return FileConnectorDiscoveryResponse(
+                        provider=payload.provider,
+                        endpoint_url=endpoint_url,
+                        base_path=payload.base_path,
+                        status="credentials_rejected",
+                        message="The endpoint was found, but login failed with these credentials.",
+                        candidates=candidates,
+                        metadata={"discovered_by": "webdav-auth-challenge"},
+                    )
+                candidates.append(
+                    {
+                        "endpoint_url": endpoint_url,
+                        "status": "found",
+                        "message": "The endpoint exists, but credentials are required or were rejected.",
+                    }
+                )
+                return FileConnectorDiscoveryResponse(
+                    provider=payload.provider,
+                    endpoint_url=endpoint_url,
+                    base_path=payload.base_path,
+                    status="found",
+                    message="The endpoint was found. Add working credentials before saving or testing the connection.",
+                    candidates=candidates,
+                    metadata={"discovered_by": "webdav-auth-challenge"},
+                )
+            candidates.append(
+                {"endpoint_url": endpoint_url, "status": "failed", "message": message}
+            )
+            continue
+        status_value = (
+            "usable" if _same_endpoint(endpoint_url, payload.endpoint_url) else "found"
+        )
+        message = (
+            "The supplied URL is directly usable."
+            if status_value == "usable"
+            else "A usable connector endpoint was discovered."
+        )
+        candidates.append(
+            {"endpoint_url": endpoint_url, "status": status_value, "message": message}
+        )
+        return FileConnectorDiscoveryResponse(
+            provider=payload.provider,
+            endpoint_url=endpoint_url,
+            base_path=payload.base_path,
+            status=status_value,
+            message=message,
+            candidates=candidates,
+            metadata={"discovered_by": "webdav-propfind"},
+        )
+    return FileConnectorDiscoveryResponse(
+        provider=payload.provider,
+        endpoint_url=None,
+        base_path=payload.base_path,
+        status="not_found",
+        message="No usable WebDAV endpoint was found for this server URL.",
+        candidates=candidates,
+    )
+
+
+@router.get("/connectors/credentials", response_model=FileConnectorCredentialsResponse)
+def list_connector_credentials(
+    provider: str | None = None,
+    include_disabled: bool = False,
+    session: Session = Depends(get_session),
+    principal: ApiPrincipal = Depends(
+        require_any_scope(
+            "files:file:admin", "system:settings:read", "admin:settings:read"
+        )
+    ),
+):
+    provider_norm = provider.strip().casefold() if provider else None
+    credentials = list_database_connector_credentials(
+        session,
+        tenant_id=principal.tenant_id,
+        include_disabled=include_disabled
+        and _can_read_disabled_connector_profiles(principal),
+    )
+    return FileConnectorCredentialsResponse(
+        credentials=[
+            FileConnectorCredentialResponse(**credential.to_response())
+            for credential in credentials
+            if provider_norm is None or credential.provider in {None, provider_norm}
+        ]
+    )
+
+
+@router.get(
+    "/connectors/policies/{scope_type}", response_model=FileConnectorPolicyResponse
+)
+def read_connector_policy(
+    scope_type: str,
+    scope_id: str | None = Query(default=None),
+    session: Session = Depends(get_session),
+    principal: ApiPrincipal = Depends(
+        require_any_scope(
+            "files:file:admin", "system:settings:read", "admin:settings:read"
+        )
+    ),
+):
+    _require_connector_policy_read(principal, scope_type)
+    try:
+        return FileConnectorPolicyResponse(
+            **connector_policy_response(
+                session,
+                tenant_id=principal.tenant_id,
+                scope_type=scope_type,
+                scope_id=scope_id,
+            )
+        )
+    except (FileStorageError, ValueError, json.JSONDecodeError) as exc:
+        raise _http_error(exc, not_found=True) from exc
+
+
+@router.put(
+    "/connectors/policies/{scope_type}", response_model=FileConnectorPolicyResponse
+)
+def write_connector_policy(
+    scope_type: str,
+    payload: FileConnectorPolicyUpdateRequest,
+    scope_id: str | None = Query(default=None),
+    session: Session = Depends(get_session),
+    principal: ApiPrincipal = Depends(
+        require_any_scope(
+            "files:file:admin", "system:settings:write", "admin:settings:write"
+        )
+    ),
+):
+    _require_connector_profile_write(principal, scope_type)
+    try:
+        set_connector_policy(
+            session,
+            tenant_id=principal.tenant_id,
+            user_id=principal.user.id,
+            scope_type=scope_type,
+            scope_id=scope_id,
+            policy=payload.policy,
+        )
+        _record_connector_settings_change(
+            session,
+            collection=FILES_CONNECTOR_POLICIES_COLLECTION,
+            resource_type=FILES_CONNECTOR_POLICY_RESOURCE,
+            resource_id=_file_connector_policy_resource_id(scope_type, scope_id),
+            operation="updated",
+            principal=principal,
+            tenant_id=None
+            if scope_type.strip().casefold() == "system"
+            else principal.tenant_id,
+            payload={"scope_type": scope_type.strip().casefold(), "scope_id": scope_id},
+        )
+        session.commit()
+        return FileConnectorPolicyResponse(
+            **connector_policy_response(
+                session,
+                tenant_id=principal.tenant_id,
+                scope_type=scope_type,
+                scope_id=scope_id,
+            )
+        )
+    except (FileStorageError, ValueError, json.JSONDecodeError) as exc:
+        session.rollback()
+        raise _http_error(exc) from exc
+
+
+@router.post(
+    "/connectors/credentials",
+    response_model=FileConnectorCredentialResponse,
+    status_code=status.HTTP_201_CREATED,
+)
+def create_connector_credential(
+    payload: FileConnectorCredentialCreateRequest,
+    session: Session = Depends(get_session),
+    principal: ApiPrincipal = Depends(
+        require_any_scope(
+            "files:file:admin", "system:settings:write", "admin:settings:write"
+        )
+    ),
+):
+    _require_connector_credential_write(principal, payload.scope_type)
+    credentials = payload.credentials
+    try:
+        _ensure_connector_credential_configuration_allowed(
+            session,
+            principal,
+            credential_id=payload.id,
+            provider=payload.provider,
+            scope_type=payload.scope_type,
+            scope_id=payload.scope_id,
+            operation="configure_credentials",
+        )
+        _ensure_connector_local_policy_allowed(
+            session,
+            principal,
+            scope_type=payload.scope_type,
+            scope_id=payload.scope_id,
+            policy=payload.policy,
+        )
+        row = create_connector_credential_row(
+            session,
+            tenant_id=principal.tenant_id,
+            user_id=principal.user.id,
+            credential_id=payload.id,
+            label=payload.label,
+            provider=payload.provider,
+            scope_type=payload.scope_type,
+            scope_id=payload.scope_id,
+            enabled=payload.enabled,
+            credential_mode=payload.credential_mode,
+            username=credentials.username,
+            password=credentials.password,
+            token=credentials.token,
+            password_env=credentials.password_env,
+            token_env=credentials.token_env,
+            secret_ref=credentials.secret_ref,
+            policy=payload.policy,
+            metadata=payload.metadata,
+        )
+        _record_connector_settings_change(
+            session,
+            collection=FILES_CONNECTOR_CREDENTIALS_COLLECTION,
+            resource_type=FILES_CONNECTOR_CREDENTIAL_RESOURCE,
+            resource_id=row.id,
+            operation="created",
+            principal=principal,
+            tenant_id=row.tenant_id,
+            payload={
+                "scope_type": row.scope_type,
+                "scope_id": row.scope_id,
+                "provider": row.provider,
+            },
+        )
+        session.commit()
+        session.refresh(row)
+        return _connector_credential_response(row)
+    except ConnectorPolicyDenied as exc:
+        session.rollback()
+        raise _connector_policy_error(exc) from exc
+    except (FileStorageError, ValueError, json.JSONDecodeError) as exc:
+        session.rollback()
+        raise _http_error(exc) from exc
+
+
+@router.get(
+    "/connectors/credentials/{credential_id}",
+    response_model=FileConnectorCredentialResponse,
+)
+def get_connector_credential(
+    credential_id: str,
+    include_disabled: bool = False,
+    session: Session = Depends(get_session),
+    principal: ApiPrincipal = Depends(
+        require_any_scope(
+            "files:file:admin", "system:settings:read", "admin:settings:read"
+        )
+    ),
+):
+    try:
+        row = get_connector_credential_row(
+            session,
+            tenant_id=principal.tenant_id,
+            credential_id=credential_id,
+            include_disabled=include_disabled
+            and _can_read_disabled_connector_profiles(principal),
+        )
+        return _connector_credential_response(row)
+    except FileStorageError as exc:
+        raise _http_error(exc, not_found=True) from exc
+
+
+@router.patch(
+    "/connectors/credentials/{credential_id}",
+    response_model=FileConnectorCredentialResponse,
+)
+def update_connector_credential(
+    credential_id: str,
+    payload: FileConnectorCredentialUpdateRequest,
+    session: Session = Depends(get_session),
+    principal: ApiPrincipal = Depends(
+        require_any_scope(
+            "files:file:admin", "system:settings:write", "admin:settings:write"
+        )
+    ),
+):
+    try:
+        row = get_connector_credential_row(
+            session,
+            tenant_id=principal.tenant_id,
+            credential_id=credential_id,
+            include_disabled=True,
+        )
+    except FileStorageError as exc:
+        raise _http_error(exc, not_found=True) from exc
+    _require_connector_credential_write(principal, row.scope_type)
+    credentials = payload.credentials
+    try:
+        provider = payload.provider if payload.provider is not None else row.provider
+        _ensure_connector_credential_configuration_allowed(
+            session,
+            principal,
+            credential_id=row.id,
+            provider=provider,
+            scope_type=row.scope_type,
+            scope_id=row.scope_id,
+            operation="configure_credentials",
+        )
+        if payload.policy is not None:
+            _ensure_connector_local_policy_allowed(
+                session,
+                principal,
+                scope_type=row.scope_type,
+                scope_id=row.scope_id,
+                policy=payload.policy,
+            )
+        update_connector_credential_row(
+            session,
+            row,
+            user_id=principal.user.id,
+            label=payload.label,
+            provider=payload.provider,
+            enabled=payload.enabled,
+            credential_mode=payload.credential_mode,
+            username=credentials.username if credentials else None,
+            password=credentials.password if credentials else None,
+            token=credentials.token if credentials else None,
+            password_env=credentials.password_env if credentials else None,
+            token_env=credentials.token_env if credentials else None,
+            secret_ref=credentials.secret_ref if credentials else None,
+            clear_password=payload.clear_password,
+            clear_token=payload.clear_token,
+            policy=payload.policy,
+            metadata=payload.metadata,
+        )
+        _record_connector_settings_change(
+            session,
+            collection=FILES_CONNECTOR_CREDENTIALS_COLLECTION,
+            resource_type=FILES_CONNECTOR_CREDENTIAL_RESOURCE,
+            resource_id=row.id,
+            operation="updated",
+            principal=principal,
+            tenant_id=row.tenant_id,
+            payload={
+                "scope_type": row.scope_type,
+                "scope_id": row.scope_id,
+                "provider": row.provider,
+            },
+        )
+        session.commit()
+        session.refresh(row)
+        return _connector_credential_response(row)
+    except ConnectorPolicyDenied as exc:
+        session.rollback()
+        raise _connector_policy_error(exc) from exc
+    except (FileStorageError, ValueError, json.JSONDecodeError) as exc:
+        session.rollback()
+        raise _http_error(exc) from exc
+
+
+@router.delete(
+    "/connectors/credentials/{credential_id}",
+    response_model=FileConnectorCredentialResponse,
+)
+def deactivate_connector_credential(
+    credential_id: str,
+    session: Session = Depends(get_session),
+    principal: ApiPrincipal = Depends(
+        require_any_scope(
+            "files:file:admin", "system:settings:write", "admin:settings:write"
+        )
+    ),
+):
+    try:
+        row = get_connector_credential_row(
+            session,
+            tenant_id=principal.tenant_id,
+            credential_id=credential_id,
+            include_disabled=True,
+        )
+    except FileStorageError as exc:
+        raise _http_error(exc, not_found=True) from exc
+    _require_connector_credential_write(principal, row.scope_type)
+    try:
+        deletion = delete_connector_credential_row(
+            session,
+            row,
+            deletion_reason="api_delete",
+            user_id=principal.user.id,
+            api_key_id=principal.api_key.id if principal.api_key else None,
+        )
+        if deletion.changed:
+            _record_connector_settings_change(
+                session,
+                collection=FILES_CONNECTOR_CREDENTIALS_COLLECTION,
+                resource_type=FILES_CONNECTOR_CREDENTIAL_RESOURCE,
+                resource_id=row.id,
+                operation="deleted",
+                principal=principal,
+                tenant_id=row.tenant_id,
+                payload={
+                    "scope_type": row.scope_type,
+                    "scope_id": row.scope_id,
+                    "provider": row.provider,
+                },
+            )
+            for profile in deletion.affected_profiles:
+                _record_connector_settings_change(
+                    session,
+                    collection=FILES_CONNECTOR_PROFILES_COLLECTION,
+                    resource_type=FILES_CONNECTOR_PROFILE_RESOURCE,
+                    resource_id=profile.id,
+                    operation="updated",
+                    principal=principal,
+                    tenant_id=profile.tenant_id,
+                    payload={
+                        "scope_type": profile.scope_type,
+                        "scope_id": profile.scope_id,
+                        "provider": profile.provider,
+                        "reason": "credential_deleted",
+                    },
+                )
+        session.commit()
+        session.refresh(row)
+        return _connector_credential_response(row)
+    except FileStorageError as exc:
+        session.rollback()
+        raise _http_error(exc) from exc
+    except Exception:
+        session.rollback()
+        raise
+
+
+@router.get("/connectors/profiles", response_model=FileConnectorProfilesResponse)
+def list_connector_profiles(
+    provider: str | None = None,
+    campaign_id: str | None = None,
+    include_disabled: bool = False,
+    session: Session = Depends(get_session),
+    principal: ApiPrincipal = Depends(
+        require_any_scope(
+            "files:file:read",
+            "files:file:upload",
+            "files:file:download",
+            "files:file:admin",
+            "system:settings:read",
+            "admin:settings:read",
+        )
+    ),
+):
+    try:
+        if campaign_id:
+            _ensure_campaign_file_access(session, principal, campaign_id)
+        profiles = _visible_connector_profiles(
+            session,
+            principal,
+            provider=provider,
+            campaign_id=campaign_id,
+            include_disabled=include_disabled
+            and _can_read_disabled_connector_profiles(principal),
+            include_admin_scopes=_can_read_disabled_connector_profiles(principal),
+            include_effective_policy=False,
+        )
+    except (OSError, ValueError, json.JSONDecodeError) as exc:
+        raise _http_error(exc) from exc
+    return FileConnectorProfilesResponse(
+        profiles=[
+            FileConnectorProfileResponse(**profile.to_response())
+            for profile in profiles
+        ]
+    )
+
+
+@router.post(
+    "/connectors/profiles",
+    response_model=FileConnectorProfileResponse,
+    status_code=status.HTTP_201_CREATED,
+)
+def create_connector_profile(
+    payload: FileConnectorProfileCreateRequest,
+    session: Session = Depends(get_session),
+    principal: ApiPrincipal = Depends(
+        require_any_scope(
+            "files:file:admin", "system:settings:write", "admin:settings:write"
+        )
+    ),
+):
+    _require_connector_profile_write(principal, payload.scope_type)
+    credentials = payload.credentials
+    try:
+        credential_row = _credential_row_for_profile(
+            session,
+            principal,
+            credential_profile_id=payload.credential_profile_id,
+            provider=payload.provider,
+            profile_id=payload.id,
+            scope_type=payload.scope_type,
+            scope_id=payload.scope_id,
+        )
+        _ensure_connector_configuration_allowed(
+            session,
+            principal,
+            connector_id=payload.id,
+            credential_id=payload.credential_profile_id,
+            provider=payload.provider,
+            endpoint_url=connector_effective_endpoint_url(
+                provider=payload.provider,
+                endpoint_url=payload.endpoint_url,
+                metadata=payload.metadata,
+            ),
+            base_path=payload.base_path,
+            scope_type=payload.scope_type,
+            scope_id=payload.scope_id,
+            operation="configure",
+        )
+        _ensure_connector_local_policy_allowed(
+            session,
+            principal,
+            scope_type=payload.scope_type,
+            scope_id=payload.scope_id,
+            policy=payload.policy,
+        )
+        row = create_connector_profile_row(
+            session,
+            tenant_id=principal.tenant_id,
+            user_id=principal.user.id,
+            profile_id=payload.id,
+            label=payload.label,
+            provider=payload.provider,
+            scope_type=payload.scope_type,
+            scope_id=payload.scope_id,
+            endpoint_url=payload.endpoint_url,
+            base_path=payload.base_path,
+            enabled=payload.enabled,
+            credential_profile_id=payload.credential_profile_id,
+            credential_mode=payload.credential_mode,
+            username=credentials.username,
+            password=credentials.password,
+            token=credentials.token,
+            password_env=credentials.password_env,
+            token_env=credentials.token_env,
+            secret_ref=credentials.secret_ref,
+            capabilities=payload.capabilities,
+            policy=payload.policy,
+            metadata=payload.metadata,
+        )
+        _record_connector_settings_change(
+            session,
+            collection=FILES_CONNECTOR_PROFILES_COLLECTION,
+            resource_type=FILES_CONNECTOR_PROFILE_RESOURCE,
+            resource_id=row.id,
+            operation="created",
+            principal=principal,
+            tenant_id=row.tenant_id,
+            payload={
+                "scope_type": row.scope_type,
+                "scope_id": row.scope_id,
+                "provider": row.provider,
+            },
+        )
+        session.commit()
+        session.refresh(row)
+        return FileConnectorProfileResponse(
+            **connector_profile_from_row(
+                row, credential_row=credential_row
+            ).to_response()
+        )
+    except ConnectorPolicyDenied as exc:
+        session.rollback()
+        raise _connector_policy_error(exc) from exc
+    except (FileStorageError, ValueError, json.JSONDecodeError) as exc:
+        session.rollback()
+        raise _http_error(exc) from exc

src/govoplan_files/backend/routes/folders.py

@@ -0,0 +1,151 @@
+from __future__ import annotations
+
+from typing import Literal
+from fastapi import APIRouter, Depends, Query
+from sqlalchemy.orm import Session
+
+from govoplan_core.auth import ApiPrincipal, require_scope
+from govoplan_files.backend.schemas import (
+    FileFolderCreateRequest,
+    FileFolderDeleteRequest,
+    FileFolderDeleteResponse,
+    FileFolderResponse,
+    FileFoldersResponse,
+)
+from govoplan_core.db.session import get_session
+from govoplan_files.backend.storage.paths import UnsafeFilePathError
+from govoplan_files.backend.storage.common import FileStorageError
+from govoplan_files.backend.storage.folders import (
+    create_folder,
+    list_folders_for_user,
+    list_folders_for_user_window,
+    soft_delete_folder,
+)
+
+
+from govoplan_files.backend.route_support import (
+    _folder_response,
+    _http_error,
+    _is_admin,
+)
+from govoplan_files.backend.services.list_queries import (
+    FOLDERS_LIST_CURSOR_SCOPE,
+    _cursor_page_size,
+    _files_delta_watermark,
+    _folder_cursor_values,
+    _folders_list_fingerprint,
+    _next_folder_list_cursor,
+)
+
+router = APIRouter(prefix="/files", tags=["files"])
+
+
+@router.get("/folders", response_model=FileFoldersResponse)
+def list_file_folders(
+    owner_type: Literal["user", "group"],
+    owner_id: str,
+    page_size: int | None = Query(default=None, ge=1, le=1000),
+    cursor: str | None = None,
+    session: Session = Depends(get_session),
+    principal: ApiPrincipal = Depends(require_scope("files:file:read")),
+):
+    try:
+        watermark = _files_delta_watermark(session, principal.tenant_id)
+        effective_page_size = _cursor_page_size(
+            FOLDERS_LIST_CURSOR_SCOPE, cursor, page_size
+        )
+        if effective_page_size is None:
+            folders = list_folders_for_user(
+                session,
+                tenant_id=principal.tenant_id,
+                user_id=principal.user.id,
+                owner_type=owner_type,
+                owner_id=owner_id,
+                is_admin=_is_admin(principal),
+            )
+            return FileFoldersResponse(
+                folders=[_folder_response(folder) for folder in folders],
+                watermark=watermark,
+            )
+        fingerprint = _folders_list_fingerprint(
+            principal,
+            owner_type=owner_type,
+            owner_id=owner_id,
+            page_size=effective_page_size,
+        )
+        after_path, after_id = _folder_cursor_values(cursor, fingerprint=fingerprint)
+        folders, has_more = list_folders_for_user_window(
+            session,
+            tenant_id=principal.tenant_id,
+            user_id=principal.user.id,
+            owner_type=owner_type,
+            owner_id=owner_id,
+            is_admin=_is_admin(principal),
+            page_size=effective_page_size,
+            after_path=after_path,
+            after_id=after_id,
+        )
+        return FileFoldersResponse(
+            folders=[_folder_response(folder) for folder in folders],
+            cursor=cursor,
+            next_cursor=_next_folder_list_cursor(
+                principal,
+                folders,
+                owner_type=owner_type,
+                owner_id=owner_id,
+                page_size=effective_page_size,
+                has_more=has_more,
+            ),
+            watermark=watermark,
+        )
+    except FileStorageError as exc:
+        raise _http_error(exc) from exc
+
+
+@router.post("/folders", response_model=FileFolderResponse)
+def create_file_folder(
+    payload: FileFolderCreateRequest,
+    session: Session = Depends(get_session),
+    principal: ApiPrincipal = Depends(require_scope("files:file:organize")),
+):
+    try:
+        folder = create_folder(
+            session,
+            tenant_id=principal.tenant_id,
+            owner_type=payload.owner_type,
+            owner_id=payload.owner_id,
+            user_id=principal.user.id,
+            path=payload.path,
+            is_admin=_is_admin(principal),
+        )
+        session.commit()
+        return _folder_response(folder)
+    except (FileStorageError, UnsafeFilePathError, ValueError) as exc:
+        session.rollback()
+        raise _http_error(exc) from exc
+
+
+@router.post("/folders/delete", response_model=FileFolderDeleteResponse)
+def delete_file_folder(
+    payload: FileFolderDeleteRequest,
+    session: Session = Depends(get_session),
+    principal: ApiPrincipal = Depends(require_scope("files:file:delete")),
+):
+    try:
+        deleted_folders, deleted_files = soft_delete_folder(
+            session,
+            tenant_id=principal.tenant_id,
+            owner_type=payload.owner_type,
+            owner_id=payload.owner_id,
+            user_id=principal.user.id,
+            path=payload.path,
+            recursive=payload.recursive,
+            is_admin=_is_admin(principal),
+        )
+        session.commit()
+        return FileFolderDeleteResponse(
+            deleted_folders=deleted_folders, deleted_files=deleted_files
+        )
+    except (FileStorageError, UnsafeFilePathError, ValueError) as exc:
+        session.rollback()
+        raise _http_error(exc) from exc

src/govoplan_files/backend/routes/integrity.py

@@ -0,0 +1,337 @@
+from __future__ import annotations
+
+import hashlib
+
+from fastapi import APIRouter, Depends, HTTPException, Query, status
+from sqlalchemy.orm import Session
+
+from govoplan_core.auth import ApiPrincipal, require_scope
+from govoplan_core.audit.logging import audit_from_principal
+from govoplan_core.db.session import get_session
+from govoplan_files.backend.db.models import (
+    FileIntegrityFinding,
+    FileIntegrityScan,
+)
+from govoplan_files.backend.schemas import (
+    FileIntegrityActionRequest,
+    FileIntegrityActionResponse,
+    FileIntegrityFindingResponse,
+    FileIntegrityFindingsResponse,
+    FileIntegrityScanCreateRequest,
+    FileIntegrityScanResponse,
+    FileIntegrityScansResponse,
+)
+from govoplan_files.backend.storage.backends import StorageBackendError
+from govoplan_files.backend.storage.common import FileStorageError
+from govoplan_files.backend.storage.integrity import (
+    cleanup_orphan_finding,
+    create_integrity_scan,
+    mark_integrity_scan_failed,
+    recheck_integrity_finding,
+    run_integrity_scan_batch,
+)
+
+
+router = APIRouter(prefix="/files/integrity", tags=["files-integrity"])
+
+
+@router.get("/scans", response_model=FileIntegrityScansResponse)
+def list_integrity_scans(
+    limit: int = Query(default=50, ge=1, le=200),
+    session: Session = Depends(get_session),
+    principal: ApiPrincipal = Depends(require_scope("files:file:admin")),
+) -> FileIntegrityScansResponse:
+    rows = (
+        session.query(FileIntegrityScan)
+        .filter(FileIntegrityScan.tenant_id == principal.tenant_id)
+        .order_by(FileIntegrityScan.created_at.desc(), FileIntegrityScan.id.desc())
+        .limit(limit)
+        .all()
+    )
+    return FileIntegrityScansResponse(
+        scans=[_scan_response(row) for row in rows]
+    )
+
+
+@router.post(
+    "/scans",
+    response_model=FileIntegrityScanResponse,
+    status_code=status.HTTP_201_CREATED,
+)
+def create_scan(
+    payload: FileIntegrityScanCreateRequest,
+    session: Session = Depends(get_session),
+    principal: ApiPrincipal = Depends(require_scope("files:file:admin")),
+) -> FileIntegrityScanResponse:
+    try:
+        scan = create_integrity_scan(
+            session,
+            tenant_id=principal.tenant_id,
+            user_id=principal.user.id,
+            verify_checksums=payload.verify_checksums,
+            batch_size=payload.batch_size,
+        )
+        audit_from_principal(
+            session,
+            principal,
+            action="files.integrity.scan_created",
+            object_type="file_integrity_scan",
+            object_id=scan.id,
+            details={
+                "storage_backend": scan.storage_backend,
+                "verify_checksums": scan.verify_checksums,
+                "batch_size": scan.batch_size,
+            },
+        )
+        session.commit()
+        return _scan_response(scan)
+    except (FileStorageError, StorageBackendError) as exc:
+        session.rollback()
+        raise _integrity_http_error(exc) from exc
+
+
+@router.post("/scans/{scan_id}/run", response_model=FileIntegrityScanResponse)
+def run_scan_batch(
+    scan_id: str,
+    session: Session = Depends(get_session),
+    principal: ApiPrincipal = Depends(require_scope("files:file:admin")),
+) -> FileIntegrityScanResponse:
+    scan = _scan_for_tenant(session, scan_id, principal.tenant_id)
+    previous_status = scan.status
+    try:
+        run_integrity_scan_batch(session, scan)
+        if scan.status == "completed" and previous_status != "completed":
+            audit_from_principal(
+                session,
+                principal,
+                action="files.integrity.scan_completed",
+                object_type="file_integrity_scan",
+                object_id=scan.id,
+                details={
+                    "verified_blob_count": scan.verified_blob_count,
+                    "quarantined_blob_count": scan.quarantined_blob_count,
+                    "orphan_object_count": scan.orphan_object_count,
+                },
+            )
+        session.commit()
+        return _scan_response(scan)
+    except (FileStorageError, StorageBackendError) as exc:
+        session.rollback()
+        scan = _scan_for_tenant(session, scan_id, principal.tenant_id)
+        mark_integrity_scan_failed(scan, error=exc)
+        audit_from_principal(
+            session,
+            principal,
+            action="files.integrity.scan_failed",
+            object_type="file_integrity_scan",
+            object_id=scan.id,
+            details={"error_type": type(exc).__name__},
+        )
+        session.commit()
+        raise _integrity_http_error(exc) from exc
+
+
+@router.get(
+    "/scans/{scan_id}/findings",
+    response_model=FileIntegrityFindingsResponse,
+)
+def list_integrity_findings(
+    scan_id: str,
+    state_filter: str | None = Query(default=None, alias="state"),
+    limit: int = Query(default=500, ge=1, le=1000),
+    session: Session = Depends(get_session),
+    principal: ApiPrincipal = Depends(require_scope("files:file:admin")),
+) -> FileIntegrityFindingsResponse:
+    scan = _scan_for_tenant(session, scan_id, principal.tenant_id)
+    query = session.query(FileIntegrityFinding).filter(
+        FileIntegrityFinding.scan_id == scan.id,
+        FileIntegrityFinding.tenant_id == principal.tenant_id,
+    )
+    if state_filter:
+        query = query.filter(FileIntegrityFinding.state == state_filter)
+    rows = (
+        query.order_by(
+            FileIntegrityFinding.created_at.asc(),
+            FileIntegrityFinding.id.asc(),
+        )
+        .limit(limit)
+        .all()
+    )
+    return FileIntegrityFindingsResponse(
+        findings=[_finding_response(row) for row in rows]
+    )
+
+
+@router.post(
+    "/findings/{finding_id}/recheck",
+    response_model=FileIntegrityActionResponse,
+)
+def recheck_finding(
+    finding_id: str,
+    payload: FileIntegrityActionRequest,
+    session: Session = Depends(get_session),
+    principal: ApiPrincipal = Depends(require_scope("files:file:admin")),
+) -> FileIntegrityActionResponse:
+    finding = _finding_for_tenant(session, finding_id, principal.tenant_id)
+    try:
+        result = recheck_integrity_finding(
+            session,
+            finding,
+            user_id=principal.user.id,
+            dry_run=payload.dry_run,
+        )
+        _audit_integrity_action(session, principal, result)
+        session.commit()
+        return _action_response(result)
+    except (FileStorageError, StorageBackendError) as exc:
+        session.rollback()
+        raise _integrity_http_error(exc) from exc
+
+
+@router.post(
+    "/findings/{finding_id}/cleanup",
+    response_model=FileIntegrityActionResponse,
+)
+def cleanup_finding(
+    finding_id: str,
+    payload: FileIntegrityActionRequest,
+    session: Session = Depends(get_session),
+    principal: ApiPrincipal = Depends(require_scope("files:file:admin")),
+) -> FileIntegrityActionResponse:
+    finding = _finding_for_tenant(session, finding_id, principal.tenant_id)
+    try:
+        result = cleanup_orphan_finding(
+            session,
+            finding,
+            user_id=principal.user.id,
+            dry_run=payload.dry_run,
+        )
+        _audit_integrity_action(session, principal, result)
+        session.commit()
+        return _action_response(result)
+    except (FileStorageError, StorageBackendError) as exc:
+        session.rollback()
+        raise _integrity_http_error(exc) from exc
+
+
+def _scan_for_tenant(
+    session: Session,
+    scan_id: str,
+    tenant_id: str,
+) -> FileIntegrityScan:
+    scan = session.get(FileIntegrityScan, scan_id)
+    if scan is None or scan.tenant_id != tenant_id:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND,
+            detail="Integrity scan not found",
+        )
+    return scan
+
+
+def _finding_for_tenant(
+    session: Session,
+    finding_id: str,
+    tenant_id: str,
+) -> FileIntegrityFinding:
+    finding = session.get(FileIntegrityFinding, finding_id)
+    if finding is None or finding.tenant_id != tenant_id:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND,
+            detail="Integrity finding not found",
+        )
+    return finding
+
+
+def _audit_integrity_action(session, principal, result) -> None:
+    audit_from_principal(
+        session,
+        principal,
+        action=f"files.integrity.{result.action}",
+        object_type="file_integrity_finding",
+        object_id=result.finding.id,
+        details={
+            "scan_id": result.finding.scan_id,
+            "kind": result.finding.kind,
+            "dry_run": result.dry_run,
+            "changed": result.changed,
+            "storage_key_sha256": hashlib.sha256(
+                result.finding.storage_key.encode("utf-8")
+            ).hexdigest(),
+            "inspection": result.inspection.kind
+            if result.inspection
+            else None,
+        },
+    )
+
+
+def _scan_response(scan: FileIntegrityScan) -> FileIntegrityScanResponse:
+    return FileIntegrityScanResponse(
+        id=scan.id,
+        tenant_id=scan.tenant_id,
+        storage_backend=scan.storage_backend,
+        storage_prefix=scan.storage_prefix,
+        status=scan.status,
+        phase=scan.phase,
+        verify_checksums=scan.verify_checksums,
+        batch_size=scan.batch_size,
+        scanned_blob_count=scan.scanned_blob_count,
+        verified_blob_count=scan.verified_blob_count,
+        quarantined_blob_count=scan.quarantined_blob_count,
+        scanned_object_count=scan.scanned_object_count,
+        orphan_object_count=scan.orphan_object_count,
+        created_by_user_id=scan.created_by_user_id,
+        started_at=scan.started_at.isoformat() if scan.started_at else None,
+        completed_at=scan.completed_at.isoformat()
+        if scan.completed_at
+        else None,
+        last_error=scan.last_error,
+        created_at=scan.created_at.isoformat(),
+        updated_at=scan.updated_at.isoformat(),
+    )
+
+
+def _finding_response(
+    finding: FileIntegrityFinding,
+) -> FileIntegrityFindingResponse:
+    return FileIntegrityFindingResponse(
+        id=finding.id,
+        scan_id=finding.scan_id,
+        tenant_id=finding.tenant_id,
+        kind=finding.kind,
+        state=finding.state,
+        blob_id=finding.blob_id,
+        storage_key=finding.storage_key,
+        expected_size_bytes=finding.expected_size_bytes,
+        observed_size_bytes=finding.observed_size_bytes,
+        expected_checksum_sha256=finding.expected_checksum_sha256,
+        observed_checksum_sha256=finding.observed_checksum_sha256,
+        resolved_at=finding.resolved_at.isoformat()
+        if finding.resolved_at
+        else None,
+        resolved_by_user_id=finding.resolved_by_user_id,
+        created_at=finding.created_at.isoformat(),
+        updated_at=finding.updated_at.isoformat(),
+    )
+
+
+def _action_response(result) -> FileIntegrityActionResponse:
+    return FileIntegrityActionResponse(
+        action=result.action,
+        changed=result.changed,
+        dry_run=result.dry_run,
+        finding=_finding_response(result.finding),
+        inspection_kind=result.inspection.kind if result.inspection else None,
+        inspection_valid=result.inspection.valid if result.inspection else None,
+    )
+
+
+def _integrity_http_error(exc: Exception) -> HTTPException:
+    if isinstance(exc, FileStorageError):
+        return HTTPException(
+            status_code=status.HTTP_409_CONFLICT,
+            detail=str(exc),
+        )
+    return HTTPException(
+        status_code=status.HTTP_503_SERVICE_UNAVAILABLE,
+        detail="The configured file storage backend could not complete the integrity operation",
+    )

src/govoplan_files/backend/routes/listing.py

@@ -0,0 +1,167 @@
+from __future__ import annotations
+
+from typing import Literal
+from fastapi import APIRouter, Depends, Query
+from sqlalchemy.orm import Session
+
+from govoplan_core.auth import ApiPrincipal, require_scope
+from govoplan_files.backend.schemas import (
+    FileDeltaResponse,
+    FileListResponse,
+)
+from govoplan_core.db.session import get_session
+from govoplan_files.backend.storage.files import (
+    count_assets_for_user,
+    list_assets_for_user,
+    list_assets_for_user_window,
+)
+
+
+from govoplan_files.backend.route_support import (
+    _asset_list_response,
+    _ensure_campaign_file_access,
+    _ensure_list_owner_access,
+    _is_admin,
+)
+from govoplan_files.backend.services.list_queries import (
+    FILES_LIST_CURSOR_SCOPE,
+    _cursor_page_size,
+    _file_cursor_values,
+    _files_delta_response,
+    _files_delta_watermark,
+    _files_list_fingerprint,
+    _full_file_delta_response,
+    _next_file_list_cursor,
+)
+
+router = APIRouter(prefix="/files", tags=["files"])
+
+
+@router.get("/delta", response_model=FileDeltaResponse)
+def files_delta(
+    owner_type: Literal["user", "group"] | None = None,
+    owner_id: str | None = None,
+    campaign_id: str | None = None,
+    path_prefix: str | None = None,
+    since: str | None = None,
+    limit: int = Query(default=500, ge=1, le=1000),
+    session: Session = Depends(get_session),
+    principal: ApiPrincipal = Depends(require_scope("files:file:read")),
+):
+    _ensure_list_owner_access(session, principal, owner_type, owner_id)
+    _ensure_campaign_file_access(session, principal, campaign_id)
+    if since is None:
+        return _full_file_delta_response(
+            session,
+            principal=principal,
+            owner_type=owner_type,
+            owner_id=owner_id,
+            campaign_id=campaign_id,
+            path_prefix=path_prefix,
+        )
+    return _files_delta_response(
+        session,
+        principal=principal,
+        owner_type=owner_type,
+        owner_id=owner_id,
+        campaign_id=campaign_id,
+        path_prefix=path_prefix,
+        since=since,
+        limit=limit,
+    )
+
+
+@router.get("", response_model=FileListResponse)
+def list_files(
+    owner_type: Literal["user", "group"] | None = None,
+    owner_id: str | None = None,
+    campaign_id: str | None = None,
+    path_prefix: str | None = None,
+    campaign_usage: Literal["linked", "unlinked"] | None = None,
+    audit_relevant: bool | None = None,
+    page_size: int | None = Query(default=None, ge=1, le=1000),
+    cursor: str | None = None,
+    session: Session = Depends(get_session),
+    principal: ApiPrincipal = Depends(require_scope("files:file:read")),
+):
+    _ensure_list_owner_access(session, principal, owner_type, owner_id)
+    _ensure_campaign_file_access(session, principal, campaign_id)
+    watermark = _files_delta_watermark(session, principal.tenant_id)
+    total = count_assets_for_user(
+        session,
+        tenant_id=principal.tenant_id,
+        user_id=principal.user.id,
+        owner_type=owner_type,
+        owner_id=owner_id,
+        campaign_id=campaign_id,
+        path_prefix=path_prefix,
+        campaign_usage=campaign_usage,
+        audit_relevant=audit_relevant,
+        is_admin=_is_admin(principal),
+    )
+    effective_page_size = _cursor_page_size(FILES_LIST_CURSOR_SCOPE, cursor, page_size)
+    if effective_page_size is not None:
+        fingerprint = _files_list_fingerprint(
+            principal,
+            owner_type=owner_type,
+            owner_id=owner_id,
+            campaign_id=campaign_id,
+            path_prefix=path_prefix,
+            campaign_usage=campaign_usage,
+            audit_relevant=audit_relevant,
+            page_size=effective_page_size,
+        )
+        after_display_path, after_updated_at, after_id = _file_cursor_values(
+            cursor, fingerprint=fingerprint
+        )
+        assets, has_more = list_assets_for_user_window(
+            session,
+            tenant_id=principal.tenant_id,
+            user_id=principal.user.id,
+            owner_type=owner_type,
+            owner_id=owner_id,
+            campaign_id=campaign_id,
+            path_prefix=path_prefix,
+            campaign_usage=campaign_usage,
+            audit_relevant=audit_relevant,
+            is_admin=_is_admin(principal),
+            page_size=effective_page_size,
+            after_display_path=after_display_path,
+            after_updated_at=after_updated_at,
+            after_id=after_id,
+        )
+        return FileListResponse(
+            files=_asset_list_response(session, assets, include_shares=True),
+            total=total,
+            cursor=cursor,
+            next_cursor=_next_file_list_cursor(
+                principal,
+                assets,
+                owner_type=owner_type,
+                owner_id=owner_id,
+                campaign_id=campaign_id,
+                path_prefix=path_prefix,
+                campaign_usage=campaign_usage,
+                audit_relevant=audit_relevant,
+                page_size=effective_page_size,
+                has_more=has_more,
+            ),
+            watermark=watermark,
+        )
+    assets = list_assets_for_user(
+        session,
+        tenant_id=principal.tenant_id,
+        user_id=principal.user.id,
+        owner_type=owner_type,
+        owner_id=owner_id,
+        campaign_id=campaign_id,
+        path_prefix=path_prefix,
+        campaign_usage=campaign_usage,
+        audit_relevant=audit_relevant,
+        is_admin=_is_admin(principal),
+    )
+    return FileListResponse(
+        files=_asset_list_response(session, assets, include_shares=True),
+        total=total,
+        watermark=watermark,
+    )

src/govoplan_files/backend/routes/shares.py

@@ -0,0 +1,330 @@
+from __future__ import annotations
+
+from datetime import datetime, timezone
+
+from fastapi import APIRouter, Depends, HTTPException, Query, status
+from sqlalchemy.orm import Session
+
+from govoplan_core.api.v1.schemas import (
+    ReferenceOptionListResponse,
+    ReferenceOptionResponse,
+)
+from govoplan_core.auth import ApiPrincipal, require_scope
+from govoplan_core.audit.logging import audit_from_principal
+from govoplan_core.core.references import (
+    access_scope_reference_page,
+    access_scope_reference_provider_available,
+)
+from govoplan_core.db.session import get_session
+from govoplan_files.backend.runtime import get_registry
+from govoplan_files.backend.schemas import (
+    BulkFileShareRequest,
+    BulkFileShareResponse,
+    FileShareRequest,
+    FileShareResponse,
+    FileSharesResponse,
+)
+from govoplan_files.backend.storage.common import FileStorageError
+from govoplan_files.backend.storage.files import (
+    current_file_share_for_target,
+    get_asset_for_share_management,
+    list_file_shares,
+    revoke_file_share,
+    share_file,
+    share_files,
+)
+from govoplan_files.backend.route_support import (
+    _file_share_response,
+    _http_error,
+    _is_admin,
+)
+
+router = APIRouter(prefix="/files", tags=["files"])
+
+
+@router.get(
+    "/{file_id}/share-target-options",
+    response_model=ReferenceOptionListResponse,
+)
+def search_share_targets(
+    file_id: str,
+    target_type: str,
+    q: str = "",
+    selected: list[str] = Query(default=[]),
+    limit: int = Query(default=50, ge=1, le=200),
+    cursor: str | None = None,
+    session: Session = Depends(get_session),
+    principal: ApiPrincipal = Depends(require_scope("files:file:share")),
+) -> ReferenceOptionListResponse:
+    if target_type not in {"user", "group"}:
+        raise HTTPException(
+            status_code=status.HTTP_422_UNPROCESSABLE_CONTENT,
+            detail="Share target type must be user or group",
+        )
+    try:
+        get_asset_for_share_management(
+            session,
+            tenant_id=principal.tenant_id,
+            user_id=principal.user.id,
+            asset_id=file_id,
+            is_admin=_is_admin(principal),
+        )
+        registry = get_registry()
+        page = access_scope_reference_page(
+            registry,
+            principal,
+            scope_type=target_type,
+            reference_kind="membership" if target_type == "user" else "group",
+            query=q,
+            selected_values=selected,
+            limit=limit,
+            cursor=cursor,
+            administrative=True,
+            session=session,
+        )
+    except ValueError as exc:
+        raise HTTPException(
+            status_code=status.HTTP_422_UNPROCESSABLE_CONTENT,
+            detail=str(exc),
+        ) from exc
+    except FileStorageError as exc:
+        raise _http_error(exc) from exc
+    return ReferenceOptionListResponse(
+        options=[
+            ReferenceOptionResponse(**option.to_dict()) for option in page.options
+        ],
+        provider_available=access_scope_reference_provider_available(registry),
+        next_cursor=page.next_cursor,
+        has_more=page.has_more,
+    )
+
+
+@router.get("/{file_id}/shares", response_model=FileSharesResponse)
+def list_shares(
+    file_id: str,
+    include_inactive: bool = False,
+    session: Session = Depends(get_session),
+    principal: ApiPrincipal = Depends(require_scope("files:file:share")),
+):
+    try:
+        asset = get_asset_for_share_management(
+            session,
+            tenant_id=principal.tenant_id,
+            user_id=principal.user.id,
+            asset_id=file_id,
+            is_admin=_is_admin(principal),
+        )
+        return FileSharesResponse(
+            shares=[
+                _file_share_response(share)
+                for share in list_file_shares(
+                    session,
+                    tenant_id=principal.tenant_id,
+                    asset_id=asset.id,
+                    include_inactive=include_inactive,
+                )
+            ]
+        )
+    except FileStorageError as exc:
+        raise _http_error(exc) from exc
+
+
+@router.post("/{file_id}/shares", response_model=FileShareResponse)
+def create_share(
+    file_id: str,
+    payload: FileShareRequest,
+    session: Session = Depends(get_session),
+    principal: ApiPrincipal = Depends(require_scope("files:file:share")),
+):
+    try:
+        asset = get_asset_for_share_management(
+            session,
+            tenant_id=principal.tenant_id,
+            user_id=principal.user.id,
+            asset_id=file_id,
+            is_admin=_is_admin(principal),
+        )
+        previous = current_file_share_for_target(
+            session,
+            tenant_id=principal.tenant_id,
+            asset_id=asset.id,
+            target_type=payload.target_type,
+            target_id=payload.target_id,
+        )
+        previous_permission = previous.permission if previous else None
+        previous_expiry = previous.expires_at if previous else None
+        share = share_file(
+            session,
+            tenant_id=principal.tenant_id,
+            asset=asset,
+            target_type=payload.target_type,
+            target_id=payload.target_id,
+            permission=payload.permission,
+            user_id=principal.user.id,
+            expires_at=payload.expires_at,
+        )
+        session.flush()
+        action = _share_audit_action(
+            existed=previous is not None,
+            previous_permission=previous_permission,
+            permission=share.permission,
+            previous_expiry=previous_expiry,
+            expiry=share.expires_at,
+        )
+        if action:
+            _audit_share_change(session, principal, share, action=action)
+        session.commit()
+        return _file_share_response(share)
+    except FileStorageError as exc:
+        session.rollback()
+        raise _http_error(exc) from exc
+
+
+@router.post("/bulk-shares", response_model=BulkFileShareResponse)
+def create_bulk_shares(
+    payload: BulkFileShareRequest,
+    session: Session = Depends(get_session),
+    principal: ApiPrincipal = Depends(require_scope("files:file:share")),
+):
+    try:
+        file_ids = list(dict.fromkeys(payload.file_ids))
+        assets = [
+            get_asset_for_share_management(
+                session,
+                tenant_id=principal.tenant_id,
+                user_id=principal.user.id,
+                asset_id=file_id,
+                is_admin=_is_admin(principal),
+            )
+            for file_id in file_ids
+        ]
+        previous_by_asset = {
+            asset.id: current_file_share_for_target(
+                session,
+                tenant_id=principal.tenant_id,
+                asset_id=asset.id,
+                target_type=payload.target_type,
+                target_id=payload.target_id,
+            )
+            for asset in assets
+        }
+        previous_values = {
+            asset_id: (
+                share.permission if share else None,
+                share.expires_at if share else None,
+            )
+            for asset_id, share in previous_by_asset.items()
+        }
+        shares = share_files(
+            session,
+            tenant_id=principal.tenant_id,
+            assets=assets,
+            target_type=payload.target_type,
+            target_id=payload.target_id,
+            permission=payload.permission,
+            user_id=principal.user.id,
+            expires_at=payload.expires_at,
+        )
+        session.flush()
+        for share in shares:
+            previous_permission, previous_expiry = previous_values[share.file_asset_id]
+            action = _share_audit_action(
+                existed=previous_by_asset[share.file_asset_id] is not None,
+                previous_permission=previous_permission,
+                permission=share.permission,
+                previous_expiry=previous_expiry,
+                expiry=share.expires_at,
+            )
+            if action:
+                _audit_share_change(session, principal, share, action=action)
+        session.commit()
+        return BulkFileShareResponse(
+            shared_count=len(shares),
+            shares=[_file_share_response(share) for share in shares],
+        )
+    except FileStorageError as exc:
+        session.rollback()
+        raise _http_error(exc) from exc
+
+
+@router.delete("/{file_id}/shares/{share_id}", response_model=FileShareResponse)
+def revoke_share(
+    file_id: str,
+    share_id: str,
+    session: Session = Depends(get_session),
+    principal: ApiPrincipal = Depends(require_scope("files:file:share")),
+):
+    try:
+        asset = get_asset_for_share_management(
+            session,
+            tenant_id=principal.tenant_id,
+            user_id=principal.user.id,
+            asset_id=file_id,
+            is_admin=_is_admin(principal),
+        )
+        share, changed = revoke_file_share(
+            session,
+            tenant_id=principal.tenant_id,
+            asset_id=asset.id,
+            share_id=share_id,
+            user_id=principal.user.id,
+        )
+        if changed:
+            _audit_share_change(
+                session, principal, share, action="files.share.revoked"
+            )
+        session.commit()
+        return _file_share_response(share)
+    except FileStorageError as exc:
+        session.rollback()
+        raise _http_error(exc) from exc
+
+
+def _share_audit_action(
+    *,
+    existed: bool,
+    previous_permission: str | None,
+    permission: str,
+    previous_expiry: datetime | None,
+    expiry: datetime | None,
+) -> str | None:
+    if not existed:
+        return "files.share.granted"
+    permission_changed = previous_permission != permission
+    expiry_changed = _normalized_expiry(previous_expiry) != _normalized_expiry(expiry)
+    if permission_changed:
+        return "files.share.changed"
+    if expiry_changed:
+        return "files.share.expiry_changed"
+    return None
+
+
+def _audit_share_change(
+    session: Session,
+    principal: ApiPrincipal,
+    share,
+    *,
+    action: str,
+) -> None:
+    audit_from_principal(
+        session,
+        principal,
+        action=action,
+        object_type="file_share",
+        object_id=share.id,
+        details={
+            "file_asset_id": share.file_asset_id,
+            "target_type": share.target_type,
+            "target_id": share.target_id,
+            "permission": share.permission,
+            "expires_at": _normalized_expiry(share.expires_at),
+        },
+    )
+
+
+def _normalized_expiry(value: datetime | None) -> str | None:
+    if value is None:
+        return None
+    if value.tzinfo is None:
+        value = value.replace(tzinfo=timezone.utc)
+    return value.astimezone(timezone.utc).isoformat()

src/govoplan_files/backend/routes/spaces.py

@@ -0,0 +1,292 @@
+from __future__ import annotations
+
+import json
+from typing import Literal
+from fastapi import APIRouter, Depends, HTTPException, status
+from sqlalchemy.orm import Session
+
+from govoplan_core.auth import ApiPrincipal, require_scope
+from govoplan_files.backend.change_tracking import (
+    FILES_CONNECTOR_SPACES_COLLECTION,
+)
+from govoplan_files.backend.schemas import (
+    FileConnectorSpaceCreateRequest,
+    FileConnectorSpaceResponse,
+    FileConnectorSpacesResponse,
+    FileConnectorSpaceUpdateRequest,
+    FileSpaceResponse,
+    FileSpacesResponse,
+)
+from govoplan_core.db.session import get_session
+from govoplan_files.backend.storage.access import group_refs_for_ids, user_group_ids
+from govoplan_files.backend.storage.common import FileStorageError
+from govoplan_files.backend.storage.connector_spaces import (
+    connector_space_owner_id,
+    create_connector_space,
+    get_connector_space_for_user,
+    list_connector_spaces_for_user,
+    soft_delete_connector_space,
+    update_connector_space,
+)
+from govoplan_files.backend.storage.connector_policy import (
+    ConnectorPolicyDenied,
+)
+
+
+from govoplan_files.backend.route_support import (
+    FILES_CONNECTOR_SPACE_RESOURCE,
+    _connector_policy_error,
+    _connector_space_file_space_response,
+    _connector_space_policy_decision,
+    _connector_space_response,
+    _http_error,
+    _is_admin,
+    _record_connector_settings_change,
+    _visible_connector_profile,
+)
+
+router = APIRouter(prefix="/files", tags=["files"])
+
+
+@router.get("/spaces", response_model=FileSpacesResponse)
+def list_file_spaces(
+    session: Session = Depends(get_session),
+    principal: ApiPrincipal = Depends(require_scope("files:file:read")),
+):
+    spaces = [
+        FileSpaceResponse(
+            id=f"user:{principal.user.id}",
+            label="My files",
+            owner_type="user",
+            owner_id=principal.user.id,
+            description="Files owned by your user account.",
+        )
+    ]
+    group_ids = user_group_ids(
+        session,
+        tenant_id=principal.tenant_id,
+        user_id=principal.user.id,
+        include_admin_groups=_is_admin(principal),
+    )
+    if group_ids:
+        groups = group_refs_for_ids(tenant_id=principal.tenant_id, group_ids=group_ids)
+        spaces.extend(
+            FileSpaceResponse(
+                id=f"group:{group.id}",
+                label=f"{group.name} files",
+                owner_type="group",
+                owner_id=group.id,
+                description="Files owned by this group.",
+            )
+            for group in groups
+        )
+    connector_spaces = list_connector_spaces_for_user(
+        session,
+        tenant_id=principal.tenant_id,
+        user_id=principal.user.id,
+        is_admin=_is_admin(principal),
+    )
+    spaces.extend(
+        _connector_space_file_space_response(space) for space in connector_spaces
+    )
+    return FileSpacesResponse(spaces=spaces)
+
+
+@router.get("/connector-spaces", response_model=FileConnectorSpacesResponse)
+def list_file_connector_spaces(
+    owner_type: Literal["user", "group"] | None = None,
+    owner_id: str | None = None,
+    include_inactive: bool = False,
+    session: Session = Depends(get_session),
+    principal: ApiPrincipal = Depends(require_scope("files:file:read")),
+):
+    try:
+        spaces = list_connector_spaces_for_user(
+            session,
+            tenant_id=principal.tenant_id,
+            user_id=principal.user.id,
+            owner_type=owner_type,
+            owner_id=owner_id,
+            include_inactive=include_inactive and _is_admin(principal),
+            is_admin=_is_admin(principal),
+        )
+        return FileConnectorSpacesResponse(
+            spaces=[_connector_space_response(space) for space in spaces]
+        )
+    except FileStorageError as exc:
+        raise _http_error(exc) from exc
+
+
+@router.post(
+    "/connector-spaces",
+    response_model=FileConnectorSpaceResponse,
+    status_code=status.HTTP_201_CREATED,
+)
+def create_file_connector_space(
+    payload: FileConnectorSpaceCreateRequest,
+    session: Session = Depends(get_session),
+    principal: ApiPrincipal = Depends(require_scope("files:file:organize")),
+):
+    if payload.owner_type == "group" and not payload.owner_id:
+        raise HTTPException(
+            status_code=status.HTTP_400_BAD_REQUEST,
+            detail="owner_id is required for group connector spaces",
+        )
+    target_owner = payload.owner_id or principal.user.id
+    try:
+        profile = _visible_connector_profile(
+            session, principal, payload.connector_profile_id
+        )
+        decision = _connector_space_policy_decision(
+            profile,
+            library_id=payload.library_id,
+            remote_path=payload.remote_path,
+            operation="link",
+        )
+        if not decision.allowed:
+            raise ConnectorPolicyDenied(decision)
+        space = create_connector_space(
+            session,
+            tenant_id=principal.tenant_id,
+            owner_type=payload.owner_type,
+            owner_id=target_owner,
+            user_id=principal.user.id,
+            label=payload.label,
+            profile=profile,
+            library_id=payload.library_id,
+            remote_path=payload.remote_path,
+            sync_mode=payload.sync_mode,
+            metadata=payload.metadata,
+            is_admin=_is_admin(principal),
+        )
+        _record_connector_settings_change(
+            session,
+            collection=FILES_CONNECTOR_SPACES_COLLECTION,
+            resource_type=FILES_CONNECTOR_SPACE_RESOURCE,
+            resource_id=space.id,
+            operation="created",
+            principal=principal,
+            tenant_id=space.tenant_id,
+            payload={
+                "owner_type": space.owner_type,
+                "owner_id": connector_space_owner_id(space),
+            },
+        )
+        session.commit()
+        return _connector_space_response(space)
+    except ConnectorPolicyDenied as exc:
+        session.rollback()
+        raise _connector_policy_error(exc) from exc
+    except (FileStorageError, ValueError, json.JSONDecodeError) as exc:
+        session.rollback()
+        raise _http_error(exc) from exc
+
+
+@router.patch("/connector-spaces/{space_id}", response_model=FileConnectorSpaceResponse)
+def update_file_connector_space(
+    space_id: str,
+    payload: FileConnectorSpaceUpdateRequest,
+    session: Session = Depends(get_session),
+    principal: ApiPrincipal = Depends(require_scope("files:file:organize")),
+):
+    try:
+        space = get_connector_space_for_user(
+            session,
+            tenant_id=principal.tenant_id,
+            user_id=principal.user.id,
+            space_id=space_id,
+            include_inactive=_is_admin(principal),
+            is_admin=_is_admin(principal),
+        )
+    except FileStorageError as exc:
+        raise _http_error(exc, not_found=True) from exc
+    try:
+        if payload.library_id is not None or payload.remote_path is not None:
+            profile = _visible_connector_profile(
+                session, principal, space.connector_profile_id
+            )
+            decision = _connector_space_policy_decision(
+                profile,
+                library_id=payload.library_id
+                if payload.library_id is not None
+                else space.library_id,
+                remote_path=payload.remote_path
+                if payload.remote_path is not None
+                else space.remote_path,
+                operation="link",
+            )
+            if not decision.allowed:
+                raise ConnectorPolicyDenied(decision)
+        update_connector_space(
+            session,
+            space,
+            user_id=principal.user.id,
+            label=payload.label,
+            library_id=payload.library_id,
+            remote_path=payload.remote_path,
+            sync_mode=payload.sync_mode,
+            is_active=payload.is_active,
+            metadata=payload.metadata,
+            is_admin=_is_admin(principal),
+        )
+        _record_connector_settings_change(
+            session,
+            collection=FILES_CONNECTOR_SPACES_COLLECTION,
+            resource_type=FILES_CONNECTOR_SPACE_RESOURCE,
+            resource_id=space.id,
+            operation="updated",
+            principal=principal,
+            tenant_id=space.tenant_id,
+            payload={
+                "owner_type": space.owner_type,
+                "owner_id": connector_space_owner_id(space),
+            },
+        )
+        session.commit()
+        return _connector_space_response(space)
+    except ConnectorPolicyDenied as exc:
+        session.rollback()
+        raise _connector_policy_error(exc) from exc
+    except (FileStorageError, ValueError, json.JSONDecodeError) as exc:
+        session.rollback()
+        raise _http_error(exc) from exc
+
+
+@router.delete(
+    "/connector-spaces/{space_id}", response_model=FileConnectorSpaceResponse
+)
+def delete_file_connector_space(
+    space_id: str,
+    session: Session = Depends(get_session),
+    principal: ApiPrincipal = Depends(require_scope("files:file:organize")),
+):
+    try:
+        space = get_connector_space_for_user(
+            session,
+            tenant_id=principal.tenant_id,
+            user_id=principal.user.id,
+            space_id=space_id,
+            include_inactive=True,
+            is_admin=_is_admin(principal),
+        )
+        soft_delete_connector_space(
+            session, space, user_id=principal.user.id, is_admin=_is_admin(principal)
+        )
+        _record_connector_settings_change(
+            session,
+            collection=FILES_CONNECTOR_SPACES_COLLECTION,
+            resource_type=FILES_CONNECTOR_SPACE_RESOURCE,
+            resource_id=space.id,
+            operation="deleted",
+            principal=principal,
+            tenant_id=space.tenant_id,
+            payload={
+                "owner_type": space.owner_type,
+                "owner_id": connector_space_owner_id(space),
+            },
+        )
+        session.commit()
+        return _connector_space_response(space)
+    except FileStorageError as exc:
+        session.rollback()
+        raise _http_error(exc, not_found=True) from exc

src/govoplan_files/backend/routes/transfers.py

@@ -0,0 +1,213 @@
+from __future__ import annotations
+
+import tempfile
+from fastapi import APIRouter, Depends
+from fastapi.responses import FileResponse
+from starlette.background import BackgroundTask
+from sqlalchemy.orm import Session
+
+from govoplan_core.auth import ApiPrincipal, require_scope
+from govoplan_files.backend.schemas import (
+    ArchiveRequest,
+    PatternMatchResponse,
+    PatternResolveRequest,
+    PatternResolveResponse,
+    RenamePreviewItem,
+    RenameRequest,
+    RenameResponse,
+    TransferRequest,
+    TransferResponse,
+    _conflict_resolutions,
+)
+from govoplan_core.db.session import get_session
+from govoplan_files.backend.storage.paths import (
+    UnsafeFilePathError,
+    filename_from_path,
+    normalize_logical_path,
+)
+from govoplan_files.backend.storage.archives import create_zip_file
+from govoplan_files.backend.storage.common import FileStorageError
+from govoplan_files.backend.storage.files import (
+    get_asset_for_user,
+    list_assets_for_user,
+)
+from govoplan_files.backend.storage.search import resolve_patterns
+from govoplan_files.backend.storage.transfers import (
+    rename_selection,
+    transfer_selection,
+)
+
+
+from govoplan_files.backend.route_support import (
+    _asset_response,
+    _attachment_disposition,
+    _audit_connector_access,
+    _cleanup_temp_file,
+    _ensure_campaign_file_access,
+    _ensure_list_owner_access,
+    _http_error,
+    _is_admin,
+)
+
+router = APIRouter(prefix="/files", tags=["files"])
+
+
+@router.post("/bulk-rename", response_model=RenameResponse)
+def bulk_rename(
+    payload: RenameRequest,
+    session: Session = Depends(get_session),
+    principal: ApiPrincipal = Depends(require_scope("files:file:organize")),
+):
+    try:
+        plan = rename_selection(
+            session,
+            tenant_id=principal.tenant_id,
+            user_id=principal.user.id,
+            file_ids=payload.file_ids,
+            folder_paths=payload.folder_paths,
+            owner_type=payload.owner_type,
+            owner_id=payload.owner_id,
+            mode=payload.mode,
+            new_name=payload.new_name,
+            find=payload.find,
+            replacement=payload.replacement,
+            prefix=payload.prefix,
+            suffix=payload.suffix,
+            recursive=payload.recursive,
+            dry_run=payload.dry_run,
+            is_admin=_is_admin(principal),
+        )
+        if not payload.dry_run:
+            session.commit()
+        return RenameResponse(
+            dry_run=payload.dry_run,
+            items=[
+                RenamePreviewItem(
+                    kind=item.kind,
+                    id=item.id,
+                    file_id=item.id if item.kind == "file" else None,
+                    folder_path=item.old_path if item.kind == "folder" else None,
+                    old_path=item.old_path,
+                    new_path=item.new_path,
+                )
+                for item in plan
+            ],
+        )
+    except (FileStorageError, UnsafeFilePathError, ValueError) as exc:
+        session.rollback()
+        raise _http_error(exc) from exc
+
+
+@router.post("/transfer", response_model=TransferResponse)
+def transfer_files(
+    payload: TransferRequest,
+    session: Session = Depends(get_session),
+    principal: ApiPrincipal = Depends(require_scope("files:file:organize")),
+):
+    try:
+        files, folders = transfer_selection(
+            session,
+            tenant_id=principal.tenant_id,
+            user_id=principal.user.id,
+            operation=payload.operation,
+            file_ids=payload.file_ids,
+            folder_paths=payload.folder_paths,
+            source_owner_type=payload.source_owner_type,
+            source_owner_id=payload.source_owner_id,
+            target_owner_type=payload.target_owner_type,
+            target_owner_id=payload.target_owner_id,
+            target_folder=payload.target_folder,
+            conflict_strategy=payload.conflict_strategy,
+            conflict_resolutions=_conflict_resolutions(payload.conflict_resolutions),
+            is_admin=_is_admin(principal),
+        )
+        session.commit()
+        return TransferResponse(
+            operation=payload.operation, files=files, folders=folders
+        )
+    except (FileStorageError, UnsafeFilePathError, ValueError) as exc:
+        session.rollback()
+        raise _http_error(exc) from exc
+
+
+@router.post("/archive.zip")
+def download_archive(
+    payload: ArchiveRequest,
+    session: Session = Depends(get_session),
+    principal: ApiPrincipal = Depends(require_scope("files:file:download")),
+):
+    try:
+        assets = [
+            get_asset_for_user(
+                session,
+                tenant_id=principal.tenant_id,
+                user_id=principal.user.id,
+                asset_id=file_id,
+                is_admin=_is_admin(principal),
+            )
+            for file_id in payload.file_ids
+        ]
+        tmp = tempfile.NamedTemporaryFile(
+            prefix="govoplan-files-", suffix=".zip", delete=False
+        )
+        tmp_path = tmp.name
+        tmp.close()
+        try:
+            create_zip_file(session, assets, tmp_path)
+        except Exception:
+            _cleanup_temp_file(tmp_path)
+            raise
+        _audit_connector_access(session, principal, assets, operation="archive")
+    except FileStorageError as exc:
+        raise _http_error(exc) from exc
+    filename = filename_from_path(
+        normalize_logical_path(payload.filename, fallback_filename="files.zip")
+    )
+    headers = {"Content-Disposition": _attachment_disposition(filename)}
+    return FileResponse(
+        tmp_path,
+        media_type="application/zip",
+        headers=headers,
+        background=BackgroundTask(_cleanup_temp_file, tmp_path),
+    )
+
+
+@router.post("/resolve-patterns", response_model=PatternResolveResponse)
+def resolve_file_patterns(
+    payload: PatternResolveRequest,
+    session: Session = Depends(get_session),
+    principal: ApiPrincipal = Depends(require_scope("files:file:read")),
+):
+    _ensure_list_owner_access(session, principal, payload.owner_type, payload.owner_id)
+    _ensure_campaign_file_access(session, principal, payload.campaign_id)
+    try:
+        assets = list_assets_for_user(
+            session,
+            tenant_id=principal.tenant_id,
+            user_id=principal.user.id,
+            owner_type=payload.owner_type,
+            owner_id=payload.owner_id,
+            campaign_id=payload.campaign_id,
+            path_prefix=payload.path_prefix,
+            is_admin=_is_admin(principal),
+        )
+        resolved, unmatched = resolve_patterns(
+            assets,
+            payload.patterns,
+            base_path=payload.path_prefix,
+            case_sensitive=payload.case_sensitive,
+        )
+        return PatternResolveResponse(
+            patterns=[
+                PatternMatchResponse(
+                    pattern=item.pattern,
+                    matches=[_asset_response(session, asset) for asset in item.matches],
+                )
+                for item in resolved
+            ],
+            unmatched=[_asset_response(session, asset) for asset in unmatched]
+            if payload.include_unmatched
+            else [],
+        )
+    except (FileStorageError, UnsafeFilePathError, ValueError) as exc:
+        raise _http_error(exc) from exc

src/govoplan_files/backend/routes/uploads.py

@@ -0,0 +1,207 @@
+from __future__ import annotations
+
+import json
+from typing import Literal
+from fastapi import APIRouter, Depends, File as FastAPIFile, Form, UploadFile
+from sqlalchemy.orm import Session
+
+from govoplan_core.auth import ApiPrincipal, require_scope
+from govoplan_files.backend.schemas import (
+    ConflictResolutionRequest,
+    FileUploadResponse,
+    _conflict_resolutions,
+)
+from govoplan_files.backend.db.models import FileAsset
+from govoplan_core.db.session import get_session
+from govoplan_files.backend.runtime import settings
+from govoplan_files.backend.storage.paths import UnsafeFilePathError
+from govoplan_files.backend.storage.archives import extract_zip_upload
+from govoplan_files.backend.storage.common import FileStorageError
+from govoplan_files.backend.storage.connector_policy import (
+    ConnectorPolicyDenied,
+)
+from govoplan_files.backend.storage.files import (
+    create_file_asset,
+)
+
+
+from govoplan_files.backend.route_support import (
+    _asset_response,
+    _audit_connector_imports,
+    _cleanup_temp_file,
+    _connector_policy_error,
+    _enforce_connector_policy,
+    _http_error,
+    _is_admin,
+    _read_limited_upload,
+    _source_metadata_from_form,
+    _spool_limited_upload_to_temp,
+)
+
+router = APIRouter(prefix="/files", tags=["files"])
+
+
+@router.post("/upload", response_model=FileUploadResponse)
+def upload_files(
+    files: list[UploadFile] = FastAPIFile(...),
+    owner_type: Literal["user", "group"] = Form(default="user"),
+    owner_id: str | None = Form(default=None),
+    path: str = Form(default=""),
+    campaign_id: str | None = Form(default=None),
+    unpack_zip: bool = Form(default=False),
+    conflict_strategy: Literal["reject", "overwrite", "rename"] = Form(
+        default="reject"
+    ),
+    conflict_resolutions_json: str | None = Form(default=None),
+    source_provenance_json: str | None = Form(default=None),
+    source_revision: str | None = Form(default=None),
+    connector_policy_json: str | None = Form(default=None),
+    session: Session = Depends(get_session),
+    principal: ApiPrincipal = Depends(require_scope("files:file:upload")),
+):
+    target_owner = owner_id or principal.user.id
+    uploaded_assets: list[FileAsset] = []
+    try:
+        raw_resolutions = (
+            json.loads(conflict_resolutions_json) if conflict_resolutions_json else []
+        )
+        upload_resolutions = _conflict_resolutions(
+            [ConflictResolutionRequest(**item) for item in raw_resolutions]
+        )
+        _enforce_connector_policy(
+            source_provenance_json, connector_policy_json, operation="import"
+        )
+        metadata = _source_metadata_from_form(source_provenance_json, source_revision)
+        for upload in files:
+            filename = upload.filename or "file"
+            content_type = upload.content_type or None
+            upload_limit = (
+                settings.file_upload_zip_max_bytes
+                if unpack_zip and filename.lower().endswith(".zip")
+                else settings.file_upload_max_bytes
+            )
+            if unpack_zip and filename.lower().endswith(".zip"):
+                zip_path = _spool_limited_upload_to_temp(
+                    upload, max_bytes=upload_limit, suffix=".zip"
+                )
+                try:
+                    extracted = extract_zip_upload(
+                        session,
+                        tenant_id=principal.tenant_id,
+                        owner_type=owner_type,
+                        owner_id=target_owner,
+                        user_id=principal.user.id,
+                        zip_data=zip_path,
+                        folder=path,
+                        campaign_id=campaign_id,
+                        conflict_strategy=conflict_strategy,
+                        conflict_resolutions=upload_resolutions,
+                        metadata=metadata,
+                        is_admin=_is_admin(principal),
+                        max_file_bytes=settings.file_upload_max_bytes,
+                        max_total_bytes=settings.file_upload_zip_max_bytes,
+                    )
+                finally:
+                    _cleanup_temp_file(zip_path)
+                uploaded_assets.extend(item.asset for item in extracted)
+                continue
+            data = _read_limited_upload(upload, max_bytes=upload_limit)
+            stored = create_file_asset(
+                session,
+                tenant_id=principal.tenant_id,
+                owner_type=owner_type,
+                owner_id=target_owner,
+                user_id=principal.user.id,
+                filename=filename,
+                data=data,
+                folder=path,
+                content_type=content_type,
+                campaign_id=campaign_id,
+                conflict_strategy=conflict_strategy,
+                conflict_resolutions=upload_resolutions,
+                metadata=metadata,
+                is_admin=_is_admin(principal),
+            )
+            uploaded_assets.append(stored.asset)
+        _audit_connector_imports(session, principal, uploaded_assets)
+        session.commit()
+    except ConnectorPolicyDenied as exc:
+        session.rollback()
+        raise _connector_policy_error(exc) from exc
+    except (FileStorageError, UnsafeFilePathError, ValueError) as exc:
+        session.rollback()
+        raise _http_error(exc) from exc
+    return FileUploadResponse(
+        files=[
+            _asset_response(session, asset, include_shares=True)
+            for asset in uploaded_assets
+        ]
+    )
+
+
+@router.post("/upload-zip", response_model=FileUploadResponse)
+def upload_zip(
+    file: UploadFile = FastAPIFile(...),
+    owner_type: Literal["user", "group"] = Form(default="user"),
+    owner_id: str | None = Form(default=None),
+    path: str = Form(default=""),
+    campaign_id: str | None = Form(default=None),
+    conflict_strategy: Literal["reject", "overwrite", "rename"] = Form(
+        default="reject"
+    ),
+    conflict_resolutions_json: str | None = Form(default=None),
+    source_provenance_json: str | None = Form(default=None),
+    source_revision: str | None = Form(default=None),
+    connector_policy_json: str | None = Form(default=None),
+    session: Session = Depends(get_session),
+    principal: ApiPrincipal = Depends(require_scope("files:file:upload")),
+):
+    target_owner = owner_id or principal.user.id
+    zip_path: str | None = None
+    try:
+        raw_resolutions = (
+            json.loads(conflict_resolutions_json) if conflict_resolutions_json else []
+        )
+        upload_resolutions = _conflict_resolutions(
+            [ConflictResolutionRequest(**item) for item in raw_resolutions]
+        )
+        _enforce_connector_policy(
+            source_provenance_json, connector_policy_json, operation="import"
+        )
+        metadata = _source_metadata_from_form(source_provenance_json, source_revision)
+        zip_path = _spool_limited_upload_to_temp(
+            file, max_bytes=settings.file_upload_zip_max_bytes, suffix=".zip"
+        )
+        extracted = extract_zip_upload(
+            session,
+            tenant_id=principal.tenant_id,
+            owner_type=owner_type,
+            owner_id=target_owner,
+            user_id=principal.user.id,
+            zip_data=zip_path,
+            folder=path,
+            campaign_id=campaign_id,
+            conflict_strategy=conflict_strategy,
+            conflict_resolutions=upload_resolutions,
+            metadata=metadata,
+            is_admin=_is_admin(principal),
+            max_file_bytes=settings.file_upload_max_bytes,
+            max_total_bytes=settings.file_upload_zip_max_bytes,
+        )
+        _audit_connector_imports(session, principal, [item.asset for item in extracted])
+        session.commit()
+    except ConnectorPolicyDenied as exc:
+        session.rollback()
+        raise _connector_policy_error(exc) from exc
+    except (FileStorageError, UnsafeFilePathError, ValueError) as exc:
+        session.rollback()
+        raise _http_error(exc) from exc
+    finally:
+        if zip_path:
+            _cleanup_temp_file(zip_path)
+    return FileUploadResponse(
+        files=[
+            _asset_response(session, item.asset, include_shares=True)
+            for item in extracted
+        ]
+    )

src/govoplan_files/backend/schemas.py

@@ -1,5 +1,6 @@
 from __future__ import annotations
 
+from datetime import datetime
 from typing import Any, Literal
 
 from pydantic import BaseModel, Field
@@ -73,11 +74,86 @@ class FileConnectorSpacesResponse(BaseModel):
 
 class FileShareResponse(BaseModel):
     id: str
+    file_asset_id: str
     target_type: str
     target_id: str
     permission: str
+    created_by_user_id: str | None = None
     created_at: str
+    expires_at: str | None = None
     revoked_at: str | None = None
+    revoked_by_user_id: str | None = None
+    active: bool
+
+
+class FileSharesResponse(BaseModel):
+    shares: list[FileShareResponse] = Field(default_factory=list)
+
+
+class FileIntegrityScanCreateRequest(BaseModel):
+    verify_checksums: bool = True
+    batch_size: int = Field(default=100, ge=1, le=1000)
+
+
+class FileIntegrityScanResponse(BaseModel):
+    id: str
+    tenant_id: str
+    storage_backend: str
+    storage_prefix: str
+    status: str
+    phase: str
+    verify_checksums: bool
+    batch_size: int
+    scanned_blob_count: int
+    verified_blob_count: int
+    quarantined_blob_count: int
+    scanned_object_count: int
+    orphan_object_count: int
+    created_by_user_id: str | None = None
+    started_at: str | None = None
+    completed_at: str | None = None
+    last_error: str | None = None
+    created_at: str
+    updated_at: str
+
+
+class FileIntegrityScansResponse(BaseModel):
+    scans: list[FileIntegrityScanResponse] = Field(default_factory=list)
+
+
+class FileIntegrityFindingResponse(BaseModel):
+    id: str
+    scan_id: str
+    tenant_id: str
+    kind: str
+    state: str
+    blob_id: str | None = None
+    storage_key: str
+    expected_size_bytes: int | None = None
+    observed_size_bytes: int | None = None
+    expected_checksum_sha256: str | None = None
+    observed_checksum_sha256: str | None = None
+    resolved_at: str | None = None
+    resolved_by_user_id: str | None = None
+    created_at: str
+    updated_at: str
+
+
+class FileIntegrityFindingsResponse(BaseModel):
+    findings: list[FileIntegrityFindingResponse] = Field(default_factory=list)
+
+
+class FileIntegrityActionRequest(BaseModel):
+    dry_run: bool = True
+
+
+class FileIntegrityActionResponse(BaseModel):
+    action: str
+    changed: bool
+    dry_run: bool
+    finding: FileIntegrityFindingResponse
+    inspection_kind: str | None = None
+    inspection_valid: bool | None = None
 
 
 class FileSourceProvenance(BaseModel):
@@ -154,6 +230,7 @@ class FileFolderDeleteResponse(BaseModel):
 
 class FileListResponse(BaseModel):
     files: list[FileAssetResponse]
+    total: int
     cursor: str | None = None
     next_cursor: str | None = None
     watermark: str | None = None
@@ -452,6 +529,7 @@ class FileShareRequest(BaseModel):
     target_type: Literal["user", "group", "campaign", "tenant"]
     target_id: str
     permission: Literal["read", "write", "manage"] = "read"
+    expires_at: datetime | None = None
 
 
 class BulkFileShareRequest(BaseModel):
@@ -459,6 +537,7 @@ class BulkFileShareRequest(BaseModel):
     target_type: Literal["user", "group", "campaign", "tenant"]
     target_id: str
     permission: Literal["read", "write", "manage"] = "read"
+    expires_at: datetime | None = None
 
 
 class BulkFileShareResponse(BaseModel):

src/govoplan_files/backend/services/__init__.py

@@ -0,0 +1 @@
+"""Query and response assembly services used by Files routes."""

src/govoplan_files/backend/services/connector_settings_delta.py

@@ -0,0 +1,292 @@
+from __future__ import annotations
+
+from typing import Literal
+from sqlalchemy.orm import Session
+
+from govoplan_core.auth import ApiPrincipal
+from govoplan_core.api.v1.schemas import DeltaDeletedItem
+from govoplan_core.core.change_sequence import (
+    ChangeSequenceEntry,
+)
+from govoplan_files.backend.change_tracking import (
+    FILES_CONNECTOR_CREDENTIALS_COLLECTION,
+    FILES_CONNECTOR_POLICIES_COLLECTION,
+    FILES_CONNECTOR_PROFILES_COLLECTION,
+    FILES_CONNECTOR_SPACES_COLLECTION,
+)
+from govoplan_files.backend.schemas import (
+    FileConnectorCredentialResponse,
+    FileConnectorSettingsDeltaResponse,
+    FileConnectorPolicyResponse,
+    FileConnectorProfileResponse,
+)
+from govoplan_files.backend.db.models import FileConnectorSpace
+from govoplan_files.backend.storage.connector_credential_store import (
+    ConnectorCredential,
+)
+from govoplan_files.backend.storage.connector_profiles import ConnectorProfile
+from govoplan_files.backend.storage.connector_policy_store import (
+    connector_policy_response,
+)
+
+
+from govoplan_files.backend.route_support import (
+    FILES_CONNECTOR_CREDENTIAL_RESOURCE,
+    FILES_CONNECTOR_PROFILE_RESOURCE,
+    FILES_CONNECTOR_SPACE_RESOURCE,
+    _can_read_disabled_connector_profiles,
+    _connector_deleted_item,
+    _connector_space_response,
+    _ensure_campaign_file_access,
+    _file_connector_settings_response_watermark,
+    _file_connector_settings_watermark,
+    _visible_connector_credentials,
+    _visible_connector_profiles,
+    _visible_connector_spaces,
+)
+
+
+def _full_file_connector_settings_delta_response(
+    session: Session,
+    principal: ApiPrincipal,
+    *,
+    scope_type: str,
+    scope_id: str | None,
+    provider: str | None,
+    campaign_id: str | None,
+    include_disabled: bool,
+    include_inactive: bool,
+    owner_type: Literal["user", "group"] | None,
+    owner_id: str | None,
+) -> FileConnectorSettingsDeltaResponse:
+    if campaign_id:
+        _ensure_campaign_file_access(session, principal, campaign_id)
+    profiles = _visible_connector_profiles(
+        session,
+        principal,
+        provider=provider,
+        campaign_id=campaign_id,
+        include_disabled=include_disabled
+        and _can_read_disabled_connector_profiles(principal),
+        include_admin_scopes=_can_read_disabled_connector_profiles(principal),
+        include_effective_policy=False,
+    )
+    credentials = _visible_connector_credentials(
+        session,
+        principal,
+        provider=provider,
+        include_disabled=include_disabled,
+    )
+    spaces = _visible_connector_spaces(
+        session,
+        principal,
+        owner_type=owner_type,
+        owner_id=owner_id,
+        include_inactive=include_inactive,
+    )
+    return FileConnectorSettingsDeltaResponse(
+        profiles=[
+            FileConnectorProfileResponse(**profile.to_response())
+            for profile in profiles
+        ],
+        credentials=[
+            FileConnectorCredentialResponse(**credential.to_response())
+            for credential in credentials
+        ],
+        spaces=[_connector_space_response(space) for space in spaces],
+        policy=FileConnectorPolicyResponse(
+            **connector_policy_response(
+                session,
+                tenant_id=principal.tenant_id,
+                scope_type=scope_type,
+                scope_id=scope_id,
+            )
+        ),
+        changed_sections=["profiles", "credentials", "spaces", "policy"],
+        deleted=[],
+        watermark=_file_connector_settings_watermark(
+            session, tenant_id=principal.tenant_id
+        ),
+        has_more=False,
+        full=True,
+    )
+
+
+def _changed_file_connector_setting_ids(
+    entries: list[ChangeSequenceEntry],
+) -> tuple[set[str], set[str], set[str], bool]:
+    changed_profile_ids = {
+        entry.resource_id
+        for entry in entries
+        if entry.collection == FILES_CONNECTOR_PROFILES_COLLECTION
+        and entry.resource_type == FILES_CONNECTOR_PROFILE_RESOURCE
+    }
+    changed_credential_ids = {
+        entry.resource_id
+        for entry in entries
+        if entry.collection == FILES_CONNECTOR_CREDENTIALS_COLLECTION
+        and entry.resource_type == FILES_CONNECTOR_CREDENTIAL_RESOURCE
+    }
+    changed_space_ids = {
+        entry.resource_id
+        for entry in entries
+        if entry.collection == FILES_CONNECTOR_SPACES_COLLECTION
+        and entry.resource_type == FILES_CONNECTOR_SPACE_RESOURCE
+    }
+    policy_changed = any(
+        entry.collection == FILES_CONNECTOR_POLICIES_COLLECTION for entry in entries
+    )
+    return (
+        changed_profile_ids,
+        changed_credential_ids,
+        changed_space_ids,
+        policy_changed,
+    )
+
+
+def _file_connector_settings_changed_sections(
+    *,
+    changed_profile_ids: set[str],
+    changed_credential_ids: set[str],
+    changed_space_ids: set[str],
+    policy_changed: bool,
+    profiles: list[ConnectorProfile],
+) -> list[str]:
+    changed_sections = []
+    if changed_profile_ids or any(
+        profile.credential_profile_id
+        and profile.credential_profile_id in changed_credential_ids
+        for profile in profiles
+    ):
+        changed_sections.append("profiles")
+    if changed_credential_ids:
+        changed_sections.append("credentials")
+    if changed_space_ids:
+        changed_sections.append("spaces")
+    if policy_changed:
+        changed_sections.append("policy")
+    return changed_sections
+
+
+def _file_connector_settings_deleted_items(
+    entries: list[ChangeSequenceEntry],
+    *,
+    visible_profiles: dict[str, ConnectorProfile],
+    visible_credentials: dict[str, ConnectorCredential],
+    visible_spaces: dict[str, FileConnectorSpace],
+) -> list[DeltaDeletedItem]:
+    return [
+        _connector_deleted_item(entry)
+        for entry in entries
+        if (
+            entry.resource_type == FILES_CONNECTOR_PROFILE_RESOURCE
+            and entry.resource_id not in visible_profiles
+        )
+        or (
+            entry.resource_type == FILES_CONNECTOR_CREDENTIAL_RESOURCE
+            and entry.resource_id not in visible_credentials
+        )
+        or (
+            entry.resource_type == FILES_CONNECTOR_SPACE_RESOURCE
+            and entry.resource_id not in visible_spaces
+        )
+    ]
+
+
+def _incremental_file_connector_settings_delta_response(
+    session: Session,
+    principal: ApiPrincipal,
+    *,
+    entries: list[ChangeSequenceEntry],
+    has_more: bool,
+    scope_type: str,
+    scope_id: str | None,
+    provider: str | None,
+    campaign_id: str | None,
+    include_disabled: bool,
+    include_inactive: bool,
+    owner_type: Literal["user", "group"] | None,
+    owner_id: str | None,
+) -> FileConnectorSettingsDeltaResponse:
+    changed_profile_ids, changed_credential_ids, changed_space_ids, policy_changed = (
+        _changed_file_connector_setting_ids(entries)
+    )
+    profiles = _visible_connector_profiles(
+        session,
+        principal,
+        provider=provider,
+        campaign_id=campaign_id,
+        include_disabled=include_disabled
+        and _can_read_disabled_connector_profiles(principal),
+        include_admin_scopes=_can_read_disabled_connector_profiles(principal),
+        include_effective_policy=False,
+    )
+    visible_profiles = {
+        profile.id: profile
+        for profile in profiles
+        if profile.id in changed_profile_ids
+        or (
+            profile.credential_profile_id
+            and profile.credential_profile_id in changed_credential_ids
+        )
+    }
+    credentials = _visible_connector_credentials(
+        session,
+        principal,
+        provider=provider,
+        include_disabled=include_disabled,
+    )
+    visible_credentials = {
+        credential.id: credential
+        for credential in credentials
+        if credential.id in changed_credential_ids
+    }
+    spaces = _visible_connector_spaces(
+        session,
+        principal,
+        owner_type=owner_type,
+        owner_id=owner_id,
+        include_inactive=include_inactive,
+    )
+    visible_spaces = {
+        space.id: space for space in spaces if space.id in changed_space_ids
+    }
+    return FileConnectorSettingsDeltaResponse(
+        profiles=[
+            FileConnectorProfileResponse(**profile.to_response())
+            for profile in visible_profiles.values()
+        ],
+        credentials=[
+            FileConnectorCredentialResponse(**credential.to_response())
+            for credential in visible_credentials.values()
+        ],
+        spaces=[_connector_space_response(space) for space in visible_spaces.values()],
+        policy=FileConnectorPolicyResponse(
+            **connector_policy_response(
+                session,
+                tenant_id=principal.tenant_id,
+                scope_type=scope_type,
+                scope_id=scope_id,
+            )
+        )
+        if policy_changed
+        else None,
+        changed_sections=_file_connector_settings_changed_sections(
+            changed_profile_ids=changed_profile_ids,
+            changed_credential_ids=changed_credential_ids,
+            changed_space_ids=changed_space_ids,
+            policy_changed=policy_changed,
+            profiles=profiles,
+        ),
+        deleted=_file_connector_settings_deleted_items(
+            entries,
+            visible_profiles=visible_profiles,
+            visible_credentials=visible_credentials,
+            visible_spaces=visible_spaces,
+        ),
+        watermark=_file_connector_settings_response_watermark(
+            session, tenant_id=principal.tenant_id, entries=entries, has_more=has_more
+        ),
+        has_more=has_more,
+        full=False,
+    )

src/govoplan_files/backend/services/list_queries.py

@@ -0,0 +1,620 @@
+from __future__ import annotations
+
+from datetime import datetime
+from typing import Literal
+from fastapi import HTTPException, status
+from sqlalchemy.orm import Session
+
+from govoplan_core.auth import ApiPrincipal
+from govoplan_core.api.v1.schemas import DeltaDeletedItem
+from govoplan_core.core.change_sequence import (
+    ChangeSequenceEntry,
+    decode_sequence_watermark,
+    encode_sequence_watermark,
+    max_sequence_id,
+    sequence_entries_since,
+    sequence_watermark_is_expired,
+)
+from govoplan_core.core.pagination import (
+    KeysetCursorError,
+    decode_keyset_cursor,
+    encode_keyset_cursor,
+    keyset_query_fingerprint,
+)
+from govoplan_files.backend.change_tracking import (
+    FILES_ASSETS_COLLECTION,
+    FILES_FOLDERS_COLLECTION,
+    FILES_MODULE_ID,
+)
+from govoplan_files.backend.schemas import (
+    FileDeltaResponse,
+)
+from govoplan_files.backend.db.models import FileAsset, FileFolder, FileShare
+from govoplan_files.backend.storage.access import user_group_ids
+from govoplan_files.backend.storage.files import (
+    list_assets_for_user,
+)
+from govoplan_files.backend.storage.folders import list_folders_for_user
+from govoplan_files.backend.storage.share_state import effective_file_share_clause
+
+
+from govoplan_files.backend.route_support import (
+    _asset_list_response,
+    _folder_response,
+    _is_admin,
+)
+
+_FILES_DELTA_COLLECTIONS = (FILES_ASSETS_COLLECTION, FILES_FOLDERS_COLLECTION)
+FILES_LIST_CURSOR_SCOPE = "files.list.v1"
+FOLDERS_LIST_CURSOR_SCOPE = "files.folders.list.v1"
+DEFAULT_FILE_LIST_PAGE_SIZE = 500
+
+
+def _cursor_http_error(exc: Exception) -> HTTPException:
+    return HTTPException(status_code=status.HTTP_400_BAD_REQUEST, detail=str(exc))
+
+
+def _cursor_page_size(
+    scope: str, cursor: str | None, explicit_page_size: int | None
+) -> int | None:
+    if explicit_page_size is not None:
+        return explicit_page_size
+    if not cursor:
+        return DEFAULT_FILE_LIST_PAGE_SIZE
+    try:
+        values = decode_keyset_cursor(scope, cursor)
+    except KeysetCursorError as exc:
+        raise _cursor_http_error(exc) from exc
+    raw_page_size = values.get("page_size")
+    if not isinstance(raw_page_size, int) or raw_page_size < 1 or raw_page_size > 1000:
+        raise HTTPException(
+            status_code=status.HTTP_400_BAD_REQUEST, detail="Invalid pagination cursor"
+        )
+    return raw_page_size
+
+
+def _files_list_fingerprint(
+    principal: ApiPrincipal,
+    *,
+    owner_type: Literal["user", "group"] | None,
+    owner_id: str | None,
+    campaign_id: str | None,
+    path_prefix: str | None,
+    campaign_usage: Literal["linked", "unlinked"] | None,
+    audit_relevant: bool | None,
+    page_size: int,
+) -> str:
+    return keyset_query_fingerprint(
+        FILES_LIST_CURSOR_SCOPE,
+        {
+            "tenant_id": principal.tenant_id,
+            "actor": "admin" if _is_admin(principal) else principal.user.id,
+            "owner_type": owner_type,
+            "owner_id": owner_id,
+            "campaign_id": campaign_id,
+            "path_prefix": path_prefix or "",
+            "campaign_usage": campaign_usage or "",
+            "audit_relevant": audit_relevant,
+            "sort": "display_path.asc,updated_at.desc,id.asc",
+            "page_size": page_size,
+        },
+    )
+
+
+def _folders_list_fingerprint(
+    principal: ApiPrincipal,
+    *,
+    owner_type: Literal["user", "group"],
+    owner_id: str,
+    page_size: int,
+) -> str:
+    return keyset_query_fingerprint(
+        FOLDERS_LIST_CURSOR_SCOPE,
+        {
+            "tenant_id": principal.tenant_id,
+            "actor": "admin" if _is_admin(principal) else principal.user.id,
+            "owner_type": owner_type,
+            "owner_id": owner_id,
+            "sort": "path.asc,id.asc",
+            "page_size": page_size,
+        },
+    )
+
+
+def _file_cursor_values(
+    cursor: str | None, *, fingerprint: str
+) -> tuple[str | None, datetime | None, str | None]:
+    try:
+        values = decode_keyset_cursor(
+            FILES_LIST_CURSOR_SCOPE, cursor, fingerprint=fingerprint
+        )
+    except KeysetCursorError as exc:
+        raise _cursor_http_error(exc) from exc
+    if values is None:
+        return None, None, None
+    display_path = values.get("display_path")
+    updated_at = values.get("updated_at")
+    asset_id = values.get("id")
+    if (
+        not isinstance(display_path, str)
+        or not isinstance(updated_at, str)
+        or not isinstance(asset_id, str)
+    ):
+        raise HTTPException(
+            status_code=status.HTTP_400_BAD_REQUEST, detail="Invalid pagination cursor"
+        )
+    try:
+        parsed_updated_at = datetime.fromisoformat(updated_at)
+    except ValueError as exc:
+        raise HTTPException(
+            status_code=status.HTTP_400_BAD_REQUEST, detail="Invalid pagination cursor"
+        ) from exc
+    return display_path, parsed_updated_at, asset_id
+
+
+def _folder_cursor_values(
+    cursor: str | None, *, fingerprint: str
+) -> tuple[str | None, str | None]:
+    try:
+        values = decode_keyset_cursor(
+            FOLDERS_LIST_CURSOR_SCOPE, cursor, fingerprint=fingerprint
+        )
+    except KeysetCursorError as exc:
+        raise _cursor_http_error(exc) from exc
+    if values is None:
+        return None, None
+    folder_path = values.get("path")
+    folder_id = values.get("id")
+    if not isinstance(folder_path, str) or not isinstance(folder_id, str):
+        raise HTTPException(
+            status_code=status.HTTP_400_BAD_REQUEST, detail="Invalid pagination cursor"
+        )
+    return folder_path, folder_id
+
+
+def _next_file_list_cursor(
+    principal: ApiPrincipal,
+    assets: list[FileAsset],
+    *,
+    owner_type: Literal["user", "group"] | None,
+    owner_id: str | None,
+    campaign_id: str | None,
+    path_prefix: str | None,
+    campaign_usage: Literal["linked", "unlinked"] | None,
+    audit_relevant: bool | None,
+    page_size: int,
+    has_more: bool,
+) -> str | None:
+    if not has_more or not assets:
+        return None
+    last = assets[-1]
+    return encode_keyset_cursor(
+        FILES_LIST_CURSOR_SCOPE,
+        fingerprint=_files_list_fingerprint(
+            principal,
+            owner_type=owner_type,
+            owner_id=owner_id,
+            campaign_id=campaign_id,
+            path_prefix=path_prefix,
+            campaign_usage=campaign_usage,
+            audit_relevant=audit_relevant,
+            page_size=page_size,
+        ),
+        values={
+            "display_path": last.display_path,
+            "updated_at": last.updated_at,
+            "id": last.id,
+            "page_size": page_size,
+        },
+    )
+
+
+def _next_folder_list_cursor(
+    principal: ApiPrincipal,
+    folders: list[FileFolder],
+    *,
+    owner_type: Literal["user", "group"],
+    owner_id: str,
+    page_size: int,
+    has_more: bool,
+) -> str | None:
+    if not has_more or not folders:
+        return None
+    last = folders[-1]
+    return encode_keyset_cursor(
+        FOLDERS_LIST_CURSOR_SCOPE,
+        fingerprint=_folders_list_fingerprint(
+            principal, owner_type=owner_type, owner_id=owner_id, page_size=page_size
+        ),
+        values={"path": last.path, "id": last.id, "page_size": page_size},
+    )
+
+
+def _files_delta_watermark(session: Session, tenant_id: str) -> str:
+    return encode_sequence_watermark(
+        max_sequence_id(
+            session,
+            tenant_id=tenant_id,
+            module_id=FILES_MODULE_ID,
+            collections=_FILES_DELTA_COLLECTIONS,
+        )
+    )
+
+
+def _full_file_delta_response(
+    session: Session,
+    *,
+    principal: ApiPrincipal,
+    owner_type: Literal["user", "group"] | None,
+    owner_id: str | None,
+    campaign_id: str | None,
+    path_prefix: str | None,
+) -> FileDeltaResponse:
+    assets = list_assets_for_user(
+        session,
+        tenant_id=principal.tenant_id,
+        user_id=principal.user.id,
+        owner_type=owner_type,
+        owner_id=owner_id,
+        campaign_id=campaign_id,
+        path_prefix=path_prefix,
+        is_admin=_is_admin(principal),
+    )
+    folders = _visible_folders_for_delta(
+        session,
+        principal=principal,
+        owner_type=owner_type,
+        owner_id=owner_id,
+        path_prefix=path_prefix,
+    )
+    return FileDeltaResponse(
+        files=_asset_list_response(session, assets, include_shares=True),
+        folders=[_folder_response(folder) for folder in folders],
+        deleted=[],
+        watermark=_files_delta_watermark(session, principal.tenant_id),
+        has_more=False,
+        full=True,
+    )
+
+
+def _visible_folders_for_delta(
+    session: Session,
+    *,
+    principal: ApiPrincipal,
+    owner_type: Literal["user", "group"] | None,
+    owner_id: str | None,
+    path_prefix: str | None,
+) -> list[FileFolder]:
+    if not owner_type or not owner_id:
+        return []
+    folders = list_folders_for_user(
+        session,
+        tenant_id=principal.tenant_id,
+        user_id=principal.user.id,
+        owner_type=owner_type,
+        owner_id=owner_id,
+        is_admin=_is_admin(principal),
+    )
+    if not path_prefix:
+        return folders
+    normalized = path_prefix.strip().strip("/")
+    if not normalized:
+        return folders
+    return [
+        folder
+        for folder in folders
+        if folder.path == normalized or folder.path.startswith(f"{normalized}/")
+    ]
+
+
+def _entry_path_matches(
+    entry_payload: dict[str, object], path_prefix: str | None
+) -> bool:
+    if not path_prefix:
+        return True
+    normalized = path_prefix.strip().strip("/")
+    if not normalized:
+        return True
+    for key in ("path", "previous_path"):
+        value = entry_payload.get(key)
+        if isinstance(value, str) and (
+            value == normalized or value.startswith(f"{normalized}/")
+        ):
+            return True
+    return False
+
+
+def _entry_owner_matches(
+    entry_payload: dict[str, object],
+    owner_type: Literal["user", "group"] | None,
+    owner_id: str | None,
+) -> bool:
+    if not owner_type or not owner_id:
+        return True
+    return (
+        entry_payload.get("owner_type") == owner_type
+        and entry_payload.get("owner_id") == owner_id
+    )
+
+
+def _entry_campaign_matches(session: Session, entry, campaign_id: str | None) -> bool:
+    if not campaign_id:
+        return True
+    payload = entry.payload or {}
+    if (
+        payload.get("share_target_type") == "campaign"
+        and payload.get("share_target_id") == campaign_id
+    ):
+        return True
+    if entry.resource_type != "file":
+        return False
+    return (
+        session.query(FileShare)
+        .filter(
+            FileShare.tenant_id == entry.tenant_id,
+            FileShare.file_asset_id == entry.resource_id,
+            FileShare.target_type == "campaign",
+            FileShare.target_id == campaign_id,
+            effective_file_share_clause(),
+        )
+        .first()
+        is not None
+    )
+
+
+def _principal_group_ids_for_delta(
+    session: Session, principal: ApiPrincipal
+) -> set[str]:
+    cache = session.info.setdefault("files_delta_group_ids", {})
+    key = (principal.tenant_id, principal.user.id)
+    if key not in cache:
+        cache[key] = set(
+            user_group_ids(
+                session, tenant_id=principal.tenant_id, user_id=principal.user.id
+            )
+        )
+    return cache[key]
+
+
+def _entry_subject_matches_principal(
+    session: Session, principal: ApiPrincipal, entry_payload: dict[str, object]
+) -> bool:
+    if _is_admin(principal):
+        return True
+    owner_type = entry_payload.get("owner_type")
+    owner_id = entry_payload.get("owner_id")
+    if owner_type == "user" and owner_id == principal.user.id:
+        return True
+    if owner_type == "group" and isinstance(owner_id, str):
+        if owner_id in _principal_group_ids_for_delta(session, principal):
+            return True
+    share_target_type = entry_payload.get("share_target_type")
+    share_target_id = entry_payload.get("share_target_id")
+    if share_target_type == "user" and share_target_id == principal.user.id:
+        return True
+    if share_target_type == "tenant" and share_target_id == principal.tenant_id:
+        return True
+    if share_target_type == "group" and isinstance(share_target_id, str):
+        if share_target_id in _principal_group_ids_for_delta(session, principal):
+            return True
+    return False
+
+
+def _entry_matches_delta_scope(
+    session: Session,
+    principal: ApiPrincipal,
+    entry,
+    *,
+    owner_type: Literal["user", "group"] | None,
+    owner_id: str | None,
+    campaign_id: str | None,
+    path_prefix: str | None,
+) -> bool:
+    payload = entry.payload or {}
+    if (
+        not owner_type
+        and not campaign_id
+        and not _entry_subject_matches_principal(session, principal, payload)
+    ):
+        return False
+    return (
+        _entry_owner_matches(payload, owner_type, owner_id)
+        and _entry_path_matches(payload, path_prefix)
+        and _entry_campaign_matches(session, entry, campaign_id)
+    )
+
+
+def _decode_files_delta_watermark(since: str) -> int:
+    try:
+        return decode_sequence_watermark(since)
+    except ValueError as exc:
+        raise HTTPException(
+            status_code=status.HTTP_400_BAD_REQUEST, detail=str(exc)
+        ) from exc
+
+
+def _changed_delta_resource_ids(
+    entries: list[ChangeSequenceEntry],
+) -> tuple[list[str], list[str]]:
+    file_ids = list(
+        dict.fromkeys(
+            entry.resource_id for entry in entries if entry.resource_type == "file"
+        )
+    )
+    folder_ids = list(
+        dict.fromkeys(
+            entry.resource_id for entry in entries if entry.resource_type == "folder"
+        )
+    )
+    return file_ids, folder_ids
+
+
+def _visible_assets_for_delta(
+    session: Session,
+    *,
+    principal: ApiPrincipal,
+    owner_type: Literal["user", "group"] | None,
+    owner_id: str | None,
+    campaign_id: str | None,
+    path_prefix: str | None,
+    changed_file_ids: list[str],
+) -> dict[str, FileAsset]:
+    return {
+        asset.id: asset
+        for asset in list_assets_for_user(
+            session,
+            tenant_id=principal.tenant_id,
+            user_id=principal.user.id,
+            owner_type=owner_type,
+            owner_id=owner_id,
+            campaign_id=campaign_id,
+            path_prefix=path_prefix,
+            is_admin=_is_admin(principal),
+        )
+        if asset.id in changed_file_ids
+    }
+
+
+def _changed_visible_folders_for_delta(
+    session: Session,
+    *,
+    principal: ApiPrincipal,
+    owner_type: Literal["user", "group"] | None,
+    owner_id: str | None,
+    path_prefix: str | None,
+    changed_folder_ids: list[str],
+) -> dict[str, FileFolder]:
+    return {
+        folder.id: folder
+        for folder in _visible_folders_for_delta(
+            session,
+            principal=principal,
+            owner_type=owner_type,
+            owner_id=owner_id,
+            path_prefix=path_prefix,
+        )
+        if folder.id in changed_folder_ids
+    }
+
+
+def _deleted_delta_items(
+    session: Session,
+    *,
+    principal: ApiPrincipal,
+    entries: list[ChangeSequenceEntry],
+    visible_assets: dict[str, FileAsset],
+    visible_folders: dict[str, FileFolder],
+    owner_type: Literal["user", "group"] | None,
+    owner_id: str | None,
+    campaign_id: str | None,
+    path_prefix: str | None,
+) -> list[DeltaDeletedItem]:
+    deleted: dict[tuple[str, str], DeltaDeletedItem] = {}
+    for entry in entries:
+        if entry.resource_type == "file" and entry.resource_id in visible_assets:
+            continue
+        if entry.resource_type == "folder" and entry.resource_id in visible_folders:
+            continue
+        if not _entry_matches_delta_scope(
+            session,
+            principal,
+            entry,
+            owner_type=owner_type,
+            owner_id=owner_id,
+            campaign_id=campaign_id,
+            path_prefix=path_prefix,
+        ):
+            continue
+        deleted[(entry.resource_type, entry.resource_id)] = DeltaDeletedItem(
+            id=entry.resource_id,
+            resource_type=entry.resource_type,
+            revision=encode_sequence_watermark(entry.id),
+            deleted_at=entry.created_at if entry.operation == "deleted" else None,
+        )
+    return list(deleted.values())
+
+
+def _files_delta_response(
+    session: Session,
+    *,
+    principal: ApiPrincipal,
+    owner_type: Literal["user", "group"] | None,
+    owner_id: str | None,
+    campaign_id: str | None,
+    path_prefix: str | None,
+    since: str,
+    limit: int,
+) -> FileDeltaResponse:
+    since_sequence = _decode_files_delta_watermark(since)
+    if sequence_watermark_is_expired(
+        session,
+        since=since_sequence,
+        tenant_id=principal.tenant_id,
+        module_id=FILES_MODULE_ID,
+        collections=_FILES_DELTA_COLLECTIONS,
+    ):
+        return _full_file_delta_response(
+            session,
+            principal=principal,
+            owner_type=owner_type,
+            owner_id=owner_id,
+            campaign_id=campaign_id,
+            path_prefix=path_prefix,
+        )
+
+    entries_plus_one = sequence_entries_since(
+        session,
+        since=since_sequence,
+        tenant_id=principal.tenant_id,
+        module_id=FILES_MODULE_ID,
+        collections=_FILES_DELTA_COLLECTIONS,
+        limit=limit + 1,
+    )
+    has_more = len(entries_plus_one) > limit
+    entries = entries_plus_one[:limit]
+
+    changed_file_ids, changed_folder_ids = _changed_delta_resource_ids(entries)
+    visible_assets = _visible_assets_for_delta(
+        session,
+        principal=principal,
+        owner_type=owner_type,
+        owner_id=owner_id,
+        campaign_id=campaign_id,
+        path_prefix=path_prefix,
+        changed_file_ids=changed_file_ids,
+    )
+    visible_folders = _changed_visible_folders_for_delta(
+        session,
+        principal=principal,
+        owner_type=owner_type,
+        owner_id=owner_id,
+        path_prefix=path_prefix,
+        changed_folder_ids=changed_folder_ids,
+    )
+    deleted = _deleted_delta_items(
+        session,
+        principal=principal,
+        entries=entries,
+        visible_assets=visible_assets,
+        visible_folders=visible_folders,
+        owner_type=owner_type,
+        owner_id=owner_id,
+        campaign_id=campaign_id,
+        path_prefix=path_prefix,
+    )
+
+    watermark = (
+        encode_sequence_watermark(entries[-1].id)
+        if has_more and entries
+        else _files_delta_watermark(session, principal.tenant_id)
+    )
+    return FileDeltaResponse(
+        files=_asset_list_response(
+            session, list(visible_assets.values()), include_shares=True
+        ),
+        folders=[_folder_response(folder) for folder in visible_folders.values()],
+        deleted=deleted,
+        watermark=watermark,
+        has_more=has_more,
+        full=False,
+    )

src/govoplan_files/backend/storage/archives.py

@@ -17,6 +17,7 @@ from govoplan_files.backend.storage.paths import filename_from_path, normalize_f
 
 
 _ZIP_READ_CHUNK_SIZE = 1024 * 1024
+ZIP_UPLOAD_MAX_FILES = 1000
 
 
 def _read_zip_member(
@@ -76,7 +77,7 @@ def extract_zip_upload(
     conflict_resolutions: Iterable[FileConflictResolution] | None = None,
     metadata: dict[str, Any] | None = None,
     is_admin: bool = False,
-    max_files: int = 1000,
+    max_files: int = ZIP_UPLOAD_MAX_FILES,
     max_file_bytes: int = 50 * 1024 * 1024,
     max_total_bytes: int = 250 * 1024 * 1024,
 ) -> list[UploadedStoredFile]:

src/govoplan_files/backend/storage/backends.py

@@ -17,6 +17,22 @@ class StorageBackendError(RuntimeError):
     pass
 
 
+class StorageObjectMissing(StorageBackendError):
+    pass
+
+
+@dataclass(frozen=True, slots=True)
+class StorageObjectInfo:
+    key: str
+    size_bytes: int
+
+
+@dataclass(frozen=True, slots=True)
+class StorageObjectPage:
+    objects: tuple[StorageObjectInfo, ...]
+    next_cursor: str | None = None
+
+
 class StorageBackend(Protocol):
     name: str
 
@@ -25,6 +41,14 @@ class StorageBackend(Protocol):
     def iter_bytes(self, key: str, *, chunk_size: int = 1024 * 1024) -> Iterable[bytes]: ...
     def delete(self, key: str) -> None: ...
     def exists(self, key: str) -> bool: ...
+    def stat(self, key: str) -> StorageObjectInfo: ...
+    def list_objects(
+        self,
+        *,
+        prefix: str,
+        after: str | None = None,
+        limit: int = 500,
+    ) -> StorageObjectPage: ...
 
 
 @dataclass(slots=True)
@@ -55,7 +79,7 @@ class LocalFilesystemStorageBackend:
             candidate = self._path_for_root(root, key)
             if candidate.exists() and candidate.is_file():
                 return candidate
-        raise StorageBackendError("Stored object does not exist")
+        raise StorageObjectMissing("Stored object does not exist")
 
     def put_bytes(self, key: str, data: bytes, *, content_type: str | None = None) -> None:
         path = self._path(key)
@@ -86,6 +110,33 @@ class LocalFilesystemStorageBackend:
             return False
         return True
 
+    def stat(self, key: str) -> StorageObjectInfo:
+        path = self._readable_path(key)
+        return StorageObjectInfo(key=key, size_bytes=path.stat().st_size)
+
+    def list_objects(
+        self,
+        *,
+        prefix: str,
+        after: str | None = None,
+        limit: int = 500,
+    ) -> StorageObjectPage:
+        normalized_limit = max(1, min(int(limit), 5000))
+        candidates: list[StorageObjectInfo] = []
+        for path in _iter_local_files(self.root):
+            key = path.relative_to(self.root).as_posix()
+            if not key.startswith(prefix) or (after is not None and key <= after):
+                continue
+            candidates.append(StorageObjectInfo(key=key, size_bytes=path.stat().st_size))
+            if len(candidates) > normalized_limit:
+                break
+        has_more = len(candidates) > normalized_limit
+        page = tuple(candidates[:normalized_limit])
+        return StorageObjectPage(
+            objects=page,
+            next_cursor=page[-1].key if has_more and page else None,
+        )
+
 
 @dataclass(slots=True)
 class S3StorageBackend:
@@ -175,6 +226,52 @@ class S3StorageBackend:
         except Exception:
             return False
 
+    def stat(self, key: str) -> StorageObjectInfo:
+        try:
+            response = self.client.head_object(Bucket=self.bucket, Key=key)
+        except Exception as exc:  # pragma: no cover - depends on S3 backend
+            if _s3_missing_error(exc):
+                raise StorageObjectMissing("Stored object does not exist") from exc
+            raise StorageBackendError(str(exc)) from exc
+        try:
+            size = int(response.get("ContentLength"))
+        except (AttributeError, TypeError, ValueError) as exc:
+            raise StorageBackendError("S3 object metadata did not include a valid size") from exc
+        return StorageObjectInfo(key=key, size_bytes=size)
+
+    def list_objects(
+        self,
+        *,
+        prefix: str,
+        after: str | None = None,
+        limit: int = 500,
+    ) -> StorageObjectPage:
+        normalized_limit = max(1, min(int(limit), 1000))
+        kwargs: dict[str, object] = {
+            "Bucket": self.bucket,
+            "Prefix": prefix,
+            "MaxKeys": normalized_limit,
+        }
+        if after:
+            kwargs["StartAfter"] = after
+        try:
+            response = self.client.list_objects_v2(**kwargs)
+        except Exception as exc:  # pragma: no cover - depends on S3 backend
+            raise StorageBackendError(str(exc)) from exc
+        objects = tuple(
+            StorageObjectInfo(
+                key=str(item["Key"]),
+                size_bytes=int(item.get("Size") or 0),
+            )
+            for item in response.get("Contents", ())
+            if isinstance(item, dict) and item.get("Key")
+        )
+        has_more = bool(response.get("IsTruncated"))
+        return StorageObjectPage(
+            objects=objects,
+            next_cursor=objects[-1].key if has_more and objects else None,
+        )
+
 
 def _reject_declared_object_size(obj: object, *, max_bytes: int) -> None:
     if not isinstance(obj, dict):
@@ -187,6 +284,25 @@ def _reject_declared_object_size(obj: object, *, max_bytes: int) -> None:
         raise StorageBackendError(f"Stored object exceeds the deployment limit of {max_bytes} bytes")
 
 
+def _iter_local_files(root: Path):
+    for entry in sorted(root.iterdir(), key=lambda item: item.name):
+        if entry.is_dir():
+            yield from _iter_local_files(entry)
+        elif entry.is_file():
+            yield entry
+
+
+def _s3_missing_error(exc: Exception) -> bool:
+    response = getattr(exc, "response", None)
+    if not isinstance(response, dict):
+        return False
+    error = response.get("Error")
+    metadata = response.get("ResponseMetadata")
+    code = str(error.get("Code") if isinstance(error, dict) else "")
+    status_code = metadata.get("HTTPStatusCode") if isinstance(metadata, dict) else None
+    return code in {"404", "NoSuchKey", "NotFound"} or status_code == 404
+
+
 def _fallback_roots() -> tuple[Path, ...]:
     raw = getattr(settings, "file_storage_local_fallback_roots", "") or ""
     return tuple(Path(item.strip()) for item in str(raw).split(",") if item.strip())

src/govoplan_files/backend/storage/campaign_attachments.py

@@ -13,12 +13,17 @@ from typing import Any, Iterator
 from sqlalchemy.orm import Session
 
 from govoplan_files.backend.db.models import FileAsset, FileBlob, FileShare, FileVersion
-from govoplan_files.backend.storage.backends import StorageBackend, StorageBackendError, get_storage_backend
+from govoplan_files.backend.storage.backends import StorageBackend, get_storage_backend
 from govoplan_files.backend.storage.common import FileStorageError
 from govoplan_files.backend.storage.files import current_versions_and_blobs, get_asset_for_user, list_assets_for_user, share_files
 from govoplan_files.backend.storage.access import ensure_owner_access
 from govoplan_files.backend.storage.paths import normalize_folder, normalize_logical_path, safe_storage_component
 from govoplan_files.backend.storage.provenance import source_provenance_from_metadata, source_revision_from_metadata
+from govoplan_files.backend.storage.share_state import effective_file_share_clause
+from govoplan_files.backend.storage.integrity import (
+    ensure_blob_is_readable,
+    read_verified_blob_bytes,
+)
 
 
 MANAGED_SOURCE_PREFIX = "managed:"
@@ -165,7 +170,7 @@ def _campaign_linked_asset_ids(
                 FileShare.file_asset_id.in_(chunk),
                 FileShare.target_type == "campaign",
                 FileShare.target_id == campaign_id,
-                FileShare.revoked_at.is_(None),
+                effective_file_share_clause(),
             )
             .all()
         )
@@ -301,11 +306,9 @@ def _materialize_managed_asset(
     target = _safe_local_target(local_root, relative_path)
     target.parent.mkdir(parents=True, exist_ok=True)
     version, blob = version_blobs[asset.id]
+    ensure_blob_is_readable(blob)
     if include_bytes:
-        try:
+        data = read_verified_blob_bytes(blob, backend=backend) if backend else b""
-            data = backend.get_bytes(blob.storage_key) if backend else b""
-        except StorageBackendError as exc:
-            raise FileStorageError(str(exc)) from exc
         target.write_bytes(data)
     else:
         target.touch()

src/govoplan_files/backend/storage/connector_credential_store.py

@@ -5,8 +5,17 @@ from dataclasses import dataclass
 from typing import Any
 
 from sqlalchemy.orm import Session
+from sqlalchemy import inspect
 
 from govoplan_core.core.policy import normalize_policy_scope_type, policy_source_path
+from govoplan_core.security.credential_envelopes import (
+    CredentialAccessContext,
+    CredentialEnvelope,
+    CredentialEnvelopeError,
+    ResolvedCredentialEnvelope,
+    list_credential_envelopes,
+    resolve_credential_envelope,
+)
 from govoplan_core.security.secrets import decrypt_secret, encrypt_secret
 from govoplan_files.backend.db.models import FileConnectorCredential
 from govoplan_files.backend.storage.common import FileStorageError
@@ -14,6 +23,8 @@ from govoplan_files.backend.storage.connector_deployment import reject_api_contr
 from govoplan_files.backend.storage.connector_policy import ConnectorPolicySource, connector_policy_sources_from_payload
 from govoplan_files.backend.storage.connector_profiles import supported_connector_providers
 
+CORE_CREDENTIAL_ENVELOPE_PREFIX = "credential-envelope:"
+
 
 @dataclass(frozen=True, slots=True)
 class ConnectorCredential:
@@ -33,6 +44,7 @@ class ConnectorCredential:
     policy_sources: tuple[ConnectorPolicySource, ...] = ()
     metadata: Mapping[str, Any] | None = None
     source_kind: str = "database"
+    has_secret: bool = False
 
     @property
     def source_path(self) -> str:
@@ -58,7 +70,7 @@ class ConnectorCredential:
             return True
         # Environment references are deliberately unavailable to API-managed
         # credential rows. Legacy rows remain visible but fail closed.
-        return bool(self.secret_ref or self.password_value or self.token_value)
+        return bool(self.has_secret or self.secret_ref or self.password_value or self.token_value)
 
     def to_response(self) -> dict[str, Any]:
         return {
@@ -85,7 +97,159 @@ def list_database_connector_credentials(
     tenant_id: str,
     include_disabled: bool = False,
 ) -> list[ConnectorCredential]:
-    return [connector_credential_from_row(row) for row in list_connector_credential_rows(session, tenant_id=tenant_id, include_disabled=include_disabled)]
+    local = [
+        connector_credential_from_row(row)
+        for row in list_connector_credential_rows(
+            session,
+            tenant_id=tenant_id,
+            include_disabled=include_disabled,
+        )
+    ]
+    return [
+        *local,
+        *list_reusable_connector_credentials(
+            session,
+            tenant_id=tenant_id,
+            include_disabled=include_disabled,
+        ),
+    ]
+
+
+def reusable_credential_reference(credential_id: str) -> str:
+    return f"{CORE_CREDENTIAL_ENVELOPE_PREFIX}{credential_id}"
+
+
+def reusable_credential_id(credential_ref: str | None) -> str | None:
+    if not credential_ref or not credential_ref.startswith(CORE_CREDENTIAL_ENVELOPE_PREFIX):
+        return None
+    value = credential_ref.removeprefix(CORE_CREDENTIAL_ENVELOPE_PREFIX).strip()
+    return value or None
+
+
+def file_credential_context(
+    *,
+    tenant_id: str,
+    profile_id: str | None = None,
+    scope_type: str = "tenant",
+    scope_id: str | None = None,
+    administrative: bool = False,
+) -> CredentialAccessContext:
+    return CredentialAccessContext(
+        tenant_id=tenant_id,
+        user_id=scope_id if scope_type == "user" else None,
+        group_ids=frozenset({scope_id}) if scope_type == "group" and scope_id else frozenset(),
+        target_scope_type=scope_type,
+        target_scope_id=scope_id or tenant_id,
+        module_id="files",
+        server_ref=f"files:{profile_id}" if profile_id else None,
+        administrative=administrative,
+    )
+
+
+def list_reusable_connector_credentials(
+    session: Session,
+    *,
+    tenant_id: str,
+    include_disabled: bool = False,
+) -> list[ConnectorCredential]:
+    if not inspect(session.get_bind()).has_table(CredentialEnvelope.__tablename__):
+        return []
+    context = file_credential_context(tenant_id=tenant_id, administrative=True)
+    return [
+        connector_credential_from_envelope(row)
+        for row in list_credential_envelopes(
+            session,
+            context=context,
+            include_inactive=include_disabled,
+        )
+    ]
+
+
+def resolve_reusable_connector_credential(
+    session: Session,
+    *,
+    tenant_id: str,
+    credential_ref: str,
+    profile_id: str,
+    scope_type: str,
+    scope_id: str | None,
+) -> ConnectorCredential:
+    credential_id = reusable_credential_id(credential_ref)
+    if credential_id is None:
+        raise FileStorageError("Reusable credential reference is invalid")
+    try:
+        resolved = resolve_credential_envelope(
+            session,
+            credential_id=credential_id,
+            context=file_credential_context(
+                tenant_id=tenant_id,
+                profile_id=profile_id,
+                scope_type=scope_type,
+                scope_id=scope_id,
+            ),
+        )
+    except CredentialEnvelopeError as exc:
+        raise FileStorageError("Reusable credential is unavailable to this file connection") from exc
+    return connector_credential_from_resolved_envelope(
+        resolved,
+        scope_type=scope_type,
+        scope_id=scope_id,
+    )
+
+
+def connector_credential_from_envelope(row: CredentialEnvelope) -> ConnectorCredential:
+    return ConnectorCredential(
+        id=reusable_credential_reference(row.id),
+        label=row.name,
+        scope_type=row.scope_type,
+        scope_id=row.scope_id,
+        enabled=row.is_active,
+        credential_mode=_envelope_credential_mode(row.credential_kind, row.secret_keys),
+        username=_clean_public_value(row.public_data, "username"),
+        source_kind="credential_envelope",
+        has_secret=bool(row.secret_data_encrypted),
+        metadata={
+            "credential_envelope_id": row.id,
+            "credential_kind": row.credential_kind,
+            "allowed_modules": list(row.allowed_modules or []),
+            "allowed_server_refs": list(row.allowed_server_refs or []),
+            "inherit_to_lower_scopes": bool(row.inherit_to_lower_scopes),
+            "revision": row.revision,
+        },
+    )
+
+
+def connector_credential_from_resolved_envelope(
+    row: ResolvedCredentialEnvelope,
+    *,
+    scope_type: str,
+    scope_id: str | None,
+) -> ConnectorCredential:
+    return ConnectorCredential(
+        id=reusable_credential_reference(row.id),
+        label=row.name,
+        scope_type=scope_type,
+        scope_id=scope_id,
+        enabled=True,
+        credential_mode=_envelope_credential_mode(row.credential_kind, row.secret_data),
+        username=_clean_public_value(row.public_data, "username"),
+        password_value=_first_secret(row.secret_data, "password", "secret"),
+        token_value=_first_secret(
+            row.secret_data,
+            "access_token",
+            "bearer_token",
+            "token",
+            "api_key",
+        ),
+        source_kind="credential_envelope",
+        has_secret=bool(row.secret_data),
+        metadata={
+            "credential_envelope_id": row.id,
+            "credential_kind": row.credential_kind,
+            "inherit_to_lower_scopes": True,
+            "revision": row.revision,
+        },
+    )
 
 
 def list_connector_credential_rows(
@@ -348,6 +512,27 @@ def _policy_source_response(source: ConnectorPolicySource) -> dict[str, Any]:
     }
 
 
+def _envelope_credential_mode(kind: str, secret_values: Mapping[str, Any] | list[str]) -> str:
+    keys = {str(key) for key in secret_values}
+    if kind in {"token", "oauth2", "api_key"} or keys.intersection(
+        {"access_token", "bearer_token", "token", "api_key"}
+    ):
+        return "token"
+    return "basic"
+
+
+def _clean_public_value(values: Mapping[str, Any] | None, key: str) -> str | None:
+    return _clean((values or {}).get(key))
+
+
+def _first_secret(values: Mapping[str, Any], *keys: str) -> str | None:
+    for key in keys:
+        value = _clean(values.get(key))
+        if value is not None:
+            return value
+    return None
+
+
 def _clean(value: object) -> str | None:
     if value is None:
         return None

src/govoplan_files/backend/storage/connector_policy.py

@@ -246,11 +246,11 @@ def _applied_fields(policy: Mapping[str, Any]) -> tuple[str, ...]:
 
 def _matches_field(request: ConnectorAccessRequest, field: str, patterns: list[str]) -> bool:
     if field == "connectors":
-        return _matches_exact(request.connector_id, patterns)
+        return _matches_reference(request.connector_id, patterns)
     if field == "credentials":
-        return _matches_exact(request.credential_id, patterns)
+        return _matches_reference(request.credential_id, patterns)
     if field == "providers":
-        return _matches_exact(request.provider, patterns)
+        return _matches_reference(request.provider, patterns)
     if field == "external_ids":
         return _matches_glob(request.external_id, patterns)
     if field == "external_paths":
@@ -260,11 +260,11 @@ def _matches_field(request: ConnectorAccessRequest, field: str, patterns: list[s
     return False
 
 
-def _matches_exact(value: str | None, patterns: list[str]) -> bool:
+def _matches_reference(value: str | None, patterns: list[str]) -> bool:
     if value is None:
         return False
     clean = value.casefold()
-    return any(pattern == "*" or clean == pattern.casefold() for pattern in patterns)
+    return any(fnmatchcase(clean, pattern.casefold()) for pattern in patterns)
 
 
 def _matches_glob(value: str | None, patterns: list[str]) -> bool:

src/govoplan_files/backend/storage/connector_profile_store.py

@@ -1,6 +1,6 @@
 from __future__ import annotations
 
-from collections.abc import Mapping
+from collections.abc import Callable, Mapping
 from typing import Any
 
 from sqlalchemy.orm import Session
@@ -10,7 +10,13 @@ from govoplan_core.security.secrets import decrypt_secret, encrypt_secret
 from govoplan_files.backend.db.models import FileConnectorCredential, FileConnectorProfile
 from govoplan_files.backend.storage.common import FileStorageError
 from govoplan_files.backend.storage.connector_deployment import reject_api_controlled_deployment_references
-from govoplan_files.backend.storage.connector_credential_store import connector_credential_from_row, credential_rows_by_id
+from govoplan_files.backend.storage.connector_credential_store import (
+    ConnectorCredential,
+    connector_credential_from_row,
+    credential_rows_by_id,
+    resolve_reusable_connector_credential,
+    reusable_credential_id,
+)
 from govoplan_files.backend.storage.connector_policy import connector_policy_sources_from_payload
 from govoplan_files.backend.storage.connector_profiles import ConnectorProfile, supported_connector_providers
 
@@ -20,7 +26,26 @@ def list_database_connector_profiles(
     *,
     tenant_id: str,
     include_disabled: bool = False,
+    row_visible: Callable[[FileConnectorProfile], bool] | None = None,
 ) -> list[ConnectorProfile]:
+    profiles, _profile_ids = select_database_connector_profiles(
+        session,
+        tenant_id=tenant_id,
+        include_disabled=include_disabled,
+        row_visible=row_visible,
+    )
+    return profiles
+
+
+def select_database_connector_profiles(
+    session: Session,
+    *,
+    tenant_id: str,
+    include_disabled: bool = False,
+    row_visible: Callable[[FileConnectorProfile], bool] | None = None,
+) -> tuple[list[ConnectorProfile], set[str]]:
+    """Return visible profiles and every database id that shadows settings."""
+
     query = session.query(FileConnectorProfile).filter(
         (FileConnectorProfile.scope_type == "system")
         | (FileConnectorProfile.tenant_id == tenant_id)
@@ -28,9 +53,33 @@ def list_database_connector_profiles(
     if not include_disabled:
         query = query.filter(FileConnectorProfile.enabled.is_(True))
     rows = query.order_by(FileConnectorProfile.scope_type.asc(), FileConnectorProfile.label.asc()).all()
-    credential_ids = {_clean(row.credential_profile_id) for row in rows if _clean(row.credential_profile_id)}
+    profile_ids = {row.id for row in rows}
+    if row_visible is not None:
+        rows = [row for row in rows if row_visible(row)]
+    credential_ids = {
+        _clean(row.credential_profile_id)
+        for row in rows
+        if _clean(row.credential_profile_id) and not reusable_credential_id(row.credential_profile_id)
+    }
     credentials = credential_rows_by_id(session, tenant_id=tenant_id, credential_ids={item for item in credential_ids if item}, include_disabled=include_disabled)
-    return [connector_profile_from_row(row, credential_row=credentials.get(row.credential_profile_id or "")) for row in rows]
+    return (
+        [
+            connector_profile_from_row(
+                row,
+                credential_row=(
+                    _resolve_profile_reusable_credential(
+                        session,
+                        tenant_id=tenant_id,
+                        row=row,
+                    )
+                    if reusable_credential_id(row.credential_profile_id)
+                    else credentials.get(row.credential_profile_id or "")
+                ),
+            )
+            for row in rows
+        ],
+        profile_ids,
+    )
 
 
 def list_connector_profile_rows(
@@ -48,7 +97,10 @@ def list_connector_profile_rows(
     return query.order_by(FileConnectorProfile.scope_type.asc(), FileConnectorProfile.label.asc()).all()
 
 
-def connector_profile_from_row(row: FileConnectorProfile, credential_row: FileConnectorCredential | None = None) -> ConnectorProfile:
+def connector_profile_from_row(
+    row: FileConnectorProfile,
+    credential_row: FileConnectorCredential | ConnectorCredential | None = None,
+) -> ConnectorProfile:
     policy_sources = []
     if row.policy:
         policy_sources = connector_policy_sources_from_payload({
@@ -57,9 +109,18 @@ def connector_profile_from_row(row: FileConnectorProfile, credential_row: FileCo
             "label": row.label,
             "policy": row.policy,
         })
-    credential = connector_credential_from_row(credential_row) if credential_row is not None else None
+    credential = (
+        credential_row
+        if isinstance(credential_row, ConnectorCredential)
+        else connector_credential_from_row(credential_row)
+        if credential_row is not None
+        else None
+    )
     if credential:
         policy_sources.extend(credential.policy_sources)
+    metadata = dict(row.metadata_ or {})
+    if reusable_credential_id(row.credential_profile_id) and credential is None:
+        metadata["credential_unavailable"] = True
     return ConnectorProfile(
         id=row.id,
         label=row.label,
@@ -80,11 +141,30 @@ def connector_profile_from_row(row: FileConnectorProfile, credential_row: FileCo
         token_value=credential.token_value if credential else decrypt_secret(row.token_encrypted),
         capabilities=tuple(_string_list(row.capabilities)),
         policy_sources=tuple(policy_sources),
-        metadata=dict(row.metadata_ or {}),
+        metadata=metadata,
         source_kind="database",
     )
 
 
+def _resolve_profile_reusable_credential(
+    session: Session,
+    *,
+    tenant_id: str,
+    row: FileConnectorProfile,
+) -> ConnectorCredential | None:
+    try:
+        return resolve_reusable_connector_credential(
+            session,
+            tenant_id=tenant_id,
+            credential_ref=row.credential_profile_id or "",
+            profile_id=row.id,
+            scope_type=row.scope_type,
+            scope_id=row.scope_id,
+        )
+    except FileStorageError:
+        return None
+
+
 def get_connector_profile_row(
     session: Session,
     *,
@@ -188,18 +268,80 @@ def update_connector_profile_row(
     clear_password: bool = False,
     clear_token: bool = False,
 ) -> FileConnectorProfile:
+    _validate_profile_update_references(
+        row,
+        password_env=password_env,
+        token_env=token_env,
+        secret_ref=secret_ref,
+        metadata=metadata,
+    )
+    _update_profile_connection_fields(
+        row,
+        label=label,
+        provider=provider,
+        endpoint_url=endpoint_url,
+        base_path=base_path,
+        enabled=enabled,
+        credential_profile_id=credential_profile_id,
+        credential_mode=credential_mode,
+    )
+    _update_profile_credential_fields(
+        row,
+        username=username,
+        password=password,
+        token=token,
+        password_env=password_env,
+        token_env=token_env,
+        secret_ref=secret_ref,
+        clear_password=clear_password,
+        clear_token=clear_token,
+    )
+    _update_profile_governance_fields(
+        row,
+        capabilities=capabilities,
+        policy=policy,
+        metadata=metadata,
+    )
+    row.updated_by_user_id = user_id
+    session.add(row)
+    session.flush()
+    return row
+
+
+def _validate_profile_update_references(
+    row: FileConnectorProfile,
+    *,
+    password_env: str | None,
+    token_env: str | None,
+    secret_ref: str | None,
+    metadata: Mapping[str, Any] | None,
+) -> None:
     reject_api_controlled_deployment_references(
         password_env=password_env,
         token_env=token_env,
         secret_ref=secret_ref,
         metadata=metadata,
     )
-    if secret_ref is not None and _clean(secret_ref) != _clean(row.secret_ref):
+    if secret_ref is None or _clean(secret_ref) == _clean(row.secret_ref):
-        if _clean(row.secret_ref):
+        return
-            raise FileStorageError(
+    if _clean(row.secret_ref):
-                "An existing external secret reference cannot be replaced or cleared until Files can prove "
+        raise FileStorageError(
-                "provider ownership and confirm provider-side deletion"
+            "An existing external secret reference cannot be replaced or cleared until Files can prove "
-            )
+            "provider ownership and confirm provider-side deletion"
+        )
+
+
+def _update_profile_connection_fields(
+    row: FileConnectorProfile,
+    *,
+    label: str | None,
+    provider: str | None,
+    endpoint_url: str | None,
+    base_path: str | None,
+    enabled: bool | None,
+    credential_profile_id: str | None,
+    credential_mode: str | None,
+) -> None:
     if label is not None:
         row.label = _normalize_label(label)
     if provider is not None:
@@ -214,6 +356,20 @@ def update_connector_profile_row(
         row.credential_profile_id = _clean(credential_profile_id)
     if credential_mode is not None:
         row.credential_mode = _normalize_credential_mode(credential_mode)
+
+
+def _update_profile_credential_fields(
+    row: FileConnectorProfile,
+    *,
+    username: str | None,
+    password: str | None,
+    token: str | None,
+    password_env: str | None,
+    token_env: str | None,
+    secret_ref: str | None,
+    clear_password: bool,
+    clear_token: bool,
+) -> None:
     if username is not None:
         row.username = _clean(username)
     if password is not None:
@@ -230,16 +386,21 @@ def update_connector_profile_row(
         row.token_env = _clean(token_env)
     if secret_ref is not None:
         row.secret_ref = _clean(secret_ref)
+
+
+def _update_profile_governance_fields(
+    row: FileConnectorProfile,
+    *,
+    capabilities: list[str] | None,
+    policy: Mapping[str, Any] | None,
+    metadata: Mapping[str, Any] | None,
+) -> None:
     if capabilities is not None:
         row.capabilities = _string_list(capabilities)
     if policy is not None:
         row.policy = dict(policy)
     if metadata is not None:
         row.metadata_ = dict(metadata)
-    row.updated_by_user_id = user_id
-    session.add(row)
-    session.flush()
-    return row
 
 
 def _normalize_scope(*, tenant_id: str, scope_type: str, scope_id: str | None) -> tuple[str, str | None, str | None]:

src/govoplan_files/backend/storage/connector_visibility.py

@@ -0,0 +1,218 @@
+from __future__ import annotations
+
+from collections.abc import Callable, Iterable
+from dataclasses import replace
+
+from sqlalchemy.orm import Session
+
+from govoplan_files.backend.storage.connector_deployment import (
+    connector_effective_endpoint_url,
+)
+from govoplan_files.backend.storage.connector_profile_store import (
+    select_database_connector_profiles,
+)
+from govoplan_files.backend.storage.connector_profiles import (
+    ConnectorProfile,
+    connector_profiles_from_settings,
+)
+from govoplan_files.backend.storage.connector_policy import (
+    ConnectorAccessRequest,
+    connector_policy_decision,
+)
+from govoplan_files.backend.storage.connector_policy_store import (
+    effective_connector_policy_sources,
+)
+from govoplan_files.backend.storage.connector_providers import (
+    connector_provider_descriptors,
+)
+
+
+CampaignVisibility = Callable[[str], bool]
+
+
+def visible_connector_profiles_for_actor(
+    session: Session,
+    *,
+    tenant_id: str,
+    user_id: str,
+    group_ids: Iterable[str],
+    settings: object | None,
+    provider: str | None = None,
+    campaign_id: str | None = None,
+    campaign_visible: CampaignVisibility | None = None,
+    include_disabled: bool = False,
+    include_admin_scopes: bool = False,
+    include_effective_policy: bool = True,
+) -> list[ConnectorProfile]:
+    """Return the same actor-filtered connector set used by API and docs surfaces."""
+
+    provider_norm = provider.strip().casefold() if provider else None
+    actor_group_ids = {str(group_id) for group_id in group_ids if str(group_id)}
+    database_profiles, database_profile_ids = select_database_connector_profiles(
+        session,
+        tenant_id=tenant_id,
+        include_disabled=include_disabled,
+        row_visible=lambda row: (
+            include_admin_scopes
+            and row.scope_type in {"user", "group", "campaign"}
+        ) or _scope_visible_to_actor(
+            scope_type=row.scope_type,
+            scope_id=row.scope_id,
+            tenant_id=tenant_id,
+            user_id=user_id,
+            group_ids=actor_group_ids,
+            campaign_id=campaign_id,
+            campaign_visible=campaign_visible,
+        ),
+    )
+    configured_profiles = connector_profiles_from_settings(settings)
+    profiles_by_id: dict[str, ConnectorProfile] = {}
+    for profile in database_profiles:
+        if profile.id not in profiles_by_id:
+            profiles_by_id[profile.id] = profile
+    for profile in configured_profiles:
+        if profile.id not in database_profile_ids and profile.id not in profiles_by_id:
+            profiles_by_id[profile.id] = profile
+
+    visible: list[ConnectorProfile] = []
+    for profile in profiles_by_id.values():
+        if not (profile.enabled or include_disabled):
+            continue
+        if provider_norm is not None and profile.provider != provider_norm:
+            continue
+        admin_scope_visible = include_admin_scopes and profile.scope_type in {
+            "user",
+            "group",
+            "campaign",
+        }
+        if not admin_scope_visible and not _profile_visible_to_actor(
+            profile,
+            tenant_id=tenant_id,
+            user_id=user_id,
+            group_ids=actor_group_ids,
+            campaign_id=campaign_id,
+            campaign_visible=campaign_visible,
+        ):
+            continue
+        visible.append(
+            _with_effective_connector_policy(
+                session, tenant_id=tenant_id, profile=profile
+            )
+            if include_effective_policy
+            else profile
+        )
+    return visible
+
+
+def connector_profile_usable_for_import(profile: ConnectorProfile) -> bool:
+    """Whether a visible profile can safely offer the current live browse/import task."""
+
+    effective_endpoint_url = connector_effective_endpoint_url(
+        provider=profile.provider,
+        endpoint_url=profile.endpoint_url,
+        metadata=profile.metadata,
+    )
+    if (
+        not profile.enabled
+        or not effective_endpoint_url
+        or not profile.credentials_configured
+        or bool(profile.secret_ref)
+    ):
+        return False
+    descriptor = next(
+        (
+            item
+            for item in connector_provider_descriptors()
+            if item.provider == profile.provider
+        ),
+        None,
+    )
+    if descriptor is None:
+        return False
+    if not (
+        descriptor.implemented
+        and descriptor.installed
+        and descriptor.browse_supported
+        and descriptor.import_supported
+    ):
+        return False
+    # These SDK paths intentionally fail closed until every connection peer and
+    # SDK-managed redirect/referral can be pinned and revalidated.
+    if profile.provider in {"s3", "smb"}:
+        return False
+
+    # Prove that the initial root browse performed by the current Files UI is
+    # policy-allowed. A later selected remote path/item is checked again.
+    return connector_policy_decision(
+        ConnectorAccessRequest(
+            connector_id=profile.id,
+            credential_id=profile.credential_profile_id,
+            provider=profile.provider,
+            external_path="",
+            external_url=effective_endpoint_url,
+            operation="import",
+        ),
+        profile.policy_sources,
+    ).allowed
+
+
+def _profile_visible_to_actor(
+    profile: ConnectorProfile,
+    *,
+    tenant_id: str,
+    user_id: str,
+    group_ids: set[str],
+    campaign_id: str | None,
+    campaign_visible: CampaignVisibility | None,
+) -> bool:
+    return _scope_visible_to_actor(
+        scope_type=profile.scope_type,
+        scope_id=profile.scope_id,
+        tenant_id=tenant_id,
+        user_id=user_id,
+        group_ids=group_ids,
+        campaign_id=campaign_id,
+        campaign_visible=campaign_visible,
+    )
+
+
+def _scope_visible_to_actor(
+    *,
+    scope_type: str,
+    scope_id: str | None,
+    tenant_id: str,
+    user_id: str,
+    group_ids: set[str],
+    campaign_id: str | None,
+    campaign_visible: CampaignVisibility | None,
+) -> bool:
+    if scope_type == "system":
+        return True
+    if scope_type == "tenant":
+        return scope_id == tenant_id
+    if scope_type == "user":
+        return scope_id == user_id
+    if scope_type == "group":
+        return bool(scope_id and scope_id in group_ids)
+    if scope_type != "campaign" or not scope_id:
+        return False
+    if campaign_id and scope_id != campaign_id:
+        return False
+    return bool(campaign_visible and campaign_visible(scope_id))
+
+
+def _with_effective_connector_policy(
+    session: Session,
+    *,
+    tenant_id: str,
+    profile: ConnectorProfile,
+) -> ConnectorProfile:
+    sources = effective_connector_policy_sources(
+        session,
+        tenant_id=tenant_id,
+        scope_type=profile.scope_type,
+        scope_id=profile.scope_id,
+    )
+    if not sources:
+        return profile
+    return replace(profile, policy_sources=tuple([*sources, *profile.policy_sources]))

src/govoplan_files/backend/storage/files.py

@@ -2,21 +2,31 @@ from __future__ import annotations
 
 import hashlib
 import mimetypes
+from datetime import datetime
 from pathlib import PurePosixPath
 from typing import Any, Iterable
 from uuid import uuid4
 
-from sqlalchemy import and_, or_
+from sqlalchemy import and_, exists, func, or_
 from sqlalchemy.orm import Session
 
 from govoplan_core.core.campaigns import CAPABILITY_CAMPAIGNS_ACCESS, CampaignAccessProvider
 from govoplan_files.backend.db.models import CampaignAttachmentUse, FileAsset, FileBlob, FileShare, FileVersion
 from govoplan_files.backend.runtime import get_registry, settings
 from govoplan_files.backend.storage.access import ensure_owner_access, ensure_share_target_exists, user_group_ids
-from govoplan_files.backend.storage.backends import StorageBackendError, get_storage_backend
+from govoplan_files.backend.storage.backends import (
+    StorageBackendError,
+    StorageObjectMissing,
+    get_storage_backend,
+)
 from govoplan_files.backend.storage.common import FileConflictResolution, FileStorageError, UploadedStoredFile, utcnow
 from govoplan_files.backend.storage.paths import filename_from_path, join_folder_filename, normalize_folder, normalize_logical_path, safe_storage_component
 from govoplan_files.backend.storage.provenance import source_provenance_from_metadata
+from govoplan_files.backend.storage.integrity import (
+    QUARANTINED_BLOB_STATUSES,
+    read_verified_blob_bytes,
+)
+from govoplan_files.backend.storage.share_state import effective_file_share_clause
 
 
 def _campaign_access_provider() -> CampaignAccessProvider:
@@ -72,11 +82,25 @@ def _get_or_create_blob(
     )
     if blob:
         backend = get_storage_backend()
-        if not backend.exists(blob.storage_key):
+        repair_required = (
+            blob.integrity_status in QUARANTINED_BLOB_STATUSES
+            or blob.quarantined_at is not None
+        )
+        try:
+            backend.stat(blob.storage_key)
+        except StorageObjectMissing:
+            repair_required = True
+        except StorageBackendError as exc:
+            raise FileStorageError(str(exc)) from exc
+        if repair_required:
             try:
                 backend.put_bytes(blob.storage_key, data, content_type=content_type)
             except StorageBackendError as exc:
                 raise FileStorageError(str(exc)) from exc
+            blob.integrity_status = "verified"
+            blob.integrity_checked_at = utcnow()
+            blob.integrity_failure = None
+            blob.quarantined_at = None
         blob.ref_count += 1
         session.add(blob)
         return blob
@@ -96,6 +120,8 @@ def _get_or_create_blob(
         size_bytes=size,
         content_type=content_type,
         ref_count=1,
+        integrity_status="verified",
+        integrity_checked_at=utcnow(),
     )
     session.add(blob)
     session.flush()
@@ -328,7 +354,7 @@ def get_asset_for_user(session: Session, *, tenant_id: str, user_id: str, asset_
         .filter(
             FileShare.tenant_id == tenant_id,
             FileShare.file_asset_id == asset.id,
-            FileShare.revoked_at.is_(None),
+            effective_file_share_clause(),
             FileShare.permission.in_(permission_values),
             or_(
                 (FileShare.target_type == "user") & (FileShare.target_id == user_id),
@@ -343,6 +369,32 @@ def get_asset_for_user(session: Session, *, tenant_id: str, user_id: str, asset_
     return asset
 
 
+def get_asset_for_share_management(
+    session: Session,
+    *,
+    tenant_id: str,
+    user_id: str,
+    asset_id: str,
+    is_admin: bool = False,
+) -> FileAsset:
+    asset = session.get(FileAsset, asset_id)
+    if not asset or asset.tenant_id != tenant_id or asset.deleted_at is not None:
+        raise FileStorageError("File not found")
+    if is_admin:
+        return asset
+    owns_asset = (
+        asset.owner_type == "user"
+        and asset.owner_user_id == user_id
+    ) or (
+        asset.owner_type == "group"
+        and asset.owner_group_id
+        in user_group_ids(session, tenant_id=tenant_id, user_id=user_id)
+    )
+    if not owns_asset:
+        raise FileStorageError("Only file owners and administrators can manage shares")
+    return asset
+
+
 def list_assets_for_user(
     session: Session,
     *,
@@ -352,6 +404,8 @@ def list_assets_for_user(
     owner_id: str | None = None,
     campaign_id: str | None = None,
     path_prefix: str | None = None,
+    campaign_usage: str | None = None,
+    audit_relevant: bool | None = None,
     include_deleted: bool = False,
     is_admin: bool = False,
 ) -> list[FileAsset]:
@@ -363,6 +417,8 @@ def list_assets_for_user(
         owner_id=owner_id,
         campaign_id=campaign_id,
         path_prefix=path_prefix,
+        campaign_usage=campaign_usage,
+        audit_relevant=audit_relevant,
         include_deleted=include_deleted,
         is_admin=is_admin,
     )
@@ -378,6 +434,8 @@ def list_assets_for_user_window(
     owner_id: str | None = None,
     campaign_id: str | None = None,
     path_prefix: str | None = None,
+    campaign_usage: str | None = None,
+    audit_relevant: bool | None = None,
     include_deleted: bool = False,
     is_admin: bool = False,
     page_size: int,
@@ -393,6 +451,8 @@ def list_assets_for_user_window(
         owner_id=owner_id,
         campaign_id=campaign_id,
         path_prefix=path_prefix,
+        campaign_usage=campaign_usage,
+        audit_relevant=audit_relevant,
         include_deleted=include_deleted,
         is_admin=is_admin,
     )
@@ -417,6 +477,8 @@ def _asset_visibility_query_for_user(
     owner_id: str | None = None,
     campaign_id: str | None = None,
     path_prefix: str | None = None,
+    campaign_usage: str | None = None,
+    audit_relevant: bool | None = None,
     include_deleted: bool = False,
     is_admin: bool = False,
 ):
@@ -434,7 +496,7 @@ def _asset_visibility_query_for_user(
             FileShare.tenant_id == tenant_id,
             FileShare.target_type == "campaign",
             FileShare.target_id == campaign_id,
-            FileShare.revoked_at.is_(None),
+            effective_file_share_clause(),
         )
     elif not is_admin and not owner_type:
         group_ids = user_group_ids(session, tenant_id=tenant_id, user_id=user_id)
@@ -442,16 +504,73 @@ def _asset_visibility_query_for_user(
             or_(
                 (FileAsset.owner_type == "user") & (FileAsset.owner_user_id == user_id),
                 (FileAsset.owner_type == "group") & (FileAsset.owner_group_id.in_(group_ids)),
-                (FileShare.revoked_at.is_(None)) & (FileShare.target_type == "user") & (FileShare.target_id == user_id),
+                effective_file_share_clause() & (FileShare.target_type == "user") & (FileShare.target_id == user_id),
-                (FileShare.revoked_at.is_(None)) & (FileShare.target_type == "group") & (FileShare.target_id.in_(group_ids)),
+                effective_file_share_clause() & (FileShare.target_type == "group") & (FileShare.target_id.in_(group_ids)),
-                (FileShare.revoked_at.is_(None)) & (FileShare.target_type == "tenant") & (FileShare.target_id == tenant_id),
+                effective_file_share_clause() & (FileShare.target_type == "tenant") & (FileShare.target_id == tenant_id),
             )
         )
     if path_prefix:
         prefix = normalize_folder(path_prefix)
         if prefix:
             query = query.filter(FileAsset.display_path.like(f"{prefix}/%"))
-    return query
+    campaign_share_exists = exists().where(
+        FileShare.tenant_id == tenant_id,
+        FileShare.file_asset_id == FileAsset.id,
+        FileShare.target_type == "campaign",
+        effective_file_share_clause(),
+    )
+    campaign_use_exists = exists().where(
+        CampaignAttachmentUse.tenant_id == tenant_id,
+        CampaignAttachmentUse.file_asset_id == FileAsset.id,
+    )
+    if campaign_usage == "linked":
+        query = query.filter(or_(campaign_share_exists, campaign_use_exists))
+    elif campaign_usage == "unlinked":
+        query = query.filter(~or_(campaign_share_exists, campaign_use_exists))
+
+    if audit_relevant is not None:
+        sent_use_exists = exists().where(
+            CampaignAttachmentUse.tenant_id == tenant_id,
+            CampaignAttachmentUse.file_asset_id == FileAsset.id,
+            CampaignAttachmentUse.use_stage == "sent",
+        )
+        query = query.filter(sent_use_exists if audit_relevant else ~sent_use_exists)
+    return query.distinct()
+
+
+def count_assets_for_user(
+    session: Session,
+    *,
+    tenant_id: str,
+    user_id: str,
+    owner_type: str | None = None,
+    owner_id: str | None = None,
+    campaign_id: str | None = None,
+    path_prefix: str | None = None,
+    campaign_usage: str | None = None,
+    audit_relevant: bool | None = None,
+    include_deleted: bool = False,
+    is_admin: bool = False,
+) -> int:
+    query = _asset_visibility_query_for_user(
+        session,
+        tenant_id=tenant_id,
+        user_id=user_id,
+        owner_type=owner_type,
+        owner_id=owner_id,
+        campaign_id=campaign_id,
+        path_prefix=path_prefix,
+        campaign_usage=campaign_usage,
+        audit_relevant=audit_relevant,
+        include_deleted=include_deleted,
+        is_admin=is_admin,
+    )
+    return int(
+        query.order_by(None)
+        .with_entities(func.count(func.distinct(FileAsset.id)))
+        .scalar()
+        or 0
+    )
 
 
 def current_version_and_blob(session: Session, asset: FileAsset) -> tuple[FileVersion, FileBlob]:
@@ -495,10 +614,7 @@ def current_versions_and_blobs(session: Session, assets: Iterable[FileAsset]) ->
 def read_asset_bytes(session: Session, asset: FileAsset) -> tuple[bytes, FileVersion, FileBlob]:
     version, blob = current_version_and_blob(session, asset)
     backend = get_storage_backend()
-    try:
+    return read_verified_blob_bytes(blob, backend=backend), version, blob
-        return backend.get_bytes(blob.storage_key), version, blob
-    except StorageBackendError as exc:
-        raise FileStorageError(str(exc)) from exc
 
 
 def share_file(
@@ -510,6 +626,7 @@ def share_file(
     target_id: str,
     permission: str,
     user_id: str,
+    expires_at: datetime | None = None,
 ) -> FileShare:
     target_type = target_type.lower().strip()
     permission = permission.lower().strip()
@@ -519,6 +636,7 @@ def share_file(
         raise FileStorageError("Unsupported share target")
     if permission not in {"read", "write", "manage"}:
         raise FileStorageError("Unsupported file permission")
+    _validate_share_expiry(expires_at)
     if target_type in {"user", "group", "tenant"}:
         ensure_share_target_exists(tenant_id=tenant_id, target_type=target_type, target_id=target_id)
     if target_type == "campaign":
@@ -536,6 +654,7 @@ def share_file(
     )
     if existing:
         existing.permission = permission
+        existing.expires_at = expires_at
         session.add(existing)
         return existing
     share = FileShare(
@@ -545,6 +664,7 @@ def share_file(
         target_id=target_id,
         permission=permission,
         created_by_user_id=user_id,
+        expires_at=expires_at,
     )
     session.add(share)
     return share
@@ -559,6 +679,7 @@ def share_files(
     target_id: str,
     permission: str,
     user_id: str,
+    expires_at: datetime | None = None,
 ) -> list[FileShare]:
     target_type = target_type.lower().strip()
     permission = permission.lower().strip()
@@ -566,6 +687,7 @@ def share_files(
         raise FileStorageError("Unsupported share target")
     if permission not in {"read", "write", "manage"}:
         raise FileStorageError("Unsupported file permission")
+    _validate_share_expiry(expires_at)
     if target_type in {"user", "group", "tenant"}:
         ensure_share_target_exists(tenant_id=tenant_id, target_type=target_type, target_id=target_id)
     if target_type == "campaign":
@@ -593,6 +715,7 @@ def share_files(
         existing = existing_by_asset.get(asset.id)
         if existing:
             existing.permission = permission
+            existing.expires_at = expires_at
             session.add(existing)
             shares.append(existing)
             continue
@@ -603,12 +726,88 @@ def share_files(
             target_id=target_id,
             permission=permission,
             created_by_user_id=user_id,
+            expires_at=expires_at,
         )
         session.add(share)
         shares.append(share)
     return shares
 
 
+def list_file_shares(
+    session: Session,
+    *,
+    tenant_id: str,
+    asset_id: str,
+    include_inactive: bool = False,
+) -> list[FileShare]:
+    query = session.query(FileShare).filter(
+        FileShare.tenant_id == tenant_id,
+        FileShare.file_asset_id == asset_id,
+    )
+    if not include_inactive:
+        query = query.filter(effective_file_share_clause())
+    return query.order_by(FileShare.created_at.desc(), FileShare.id.desc()).all()
+
+
+def revoke_file_share(
+    session: Session,
+    *,
+    tenant_id: str,
+    asset_id: str,
+    share_id: str,
+    user_id: str,
+) -> tuple[FileShare, bool]:
+    share = (
+        session.query(FileShare)
+        .filter(
+            FileShare.id == share_id,
+            FileShare.tenant_id == tenant_id,
+            FileShare.file_asset_id == asset_id,
+        )
+        .one_or_none()
+    )
+    if share is None:
+        raise FileStorageError("File share not found")
+    if share.revoked_at is not None:
+        return share, False
+    share.revoked_at = utcnow()
+    share.revoked_by_user_id = user_id
+    session.add(share)
+    return share, True
+
+
+def current_file_share_for_target(
+    session: Session,
+    *,
+    tenant_id: str,
+    asset_id: str,
+    target_type: str,
+    target_id: str,
+) -> FileShare | None:
+    return (
+        session.query(FileShare)
+        .filter(
+            FileShare.tenant_id == tenant_id,
+            FileShare.file_asset_id == asset_id,
+            FileShare.target_type == target_type.lower().strip(),
+            FileShare.target_id == target_id,
+            FileShare.revoked_at.is_(None),
+        )
+        .order_by(FileShare.created_at.desc(), FileShare.id.desc())
+        .first()
+    )
+
+
+def _validate_share_expiry(expires_at: datetime | None) -> None:
+    if expires_at is None:
+        return
+    from govoplan_files.backend.storage.share_state import file_share_is_active
+
+    candidate = FileShare(expires_at=expires_at)
+    if not file_share_is_active(candidate):
+        raise FileStorageError("File share expiry must be in the future")
+
+
 
 def soft_delete_assets(session: Session, assets: Iterable[FileAsset]) -> int:
     count = 0

src/govoplan_files/backend/storage/http_client.py

@@ -185,15 +185,23 @@ class _OutboundPolicyHTTPTransport(httpx.BaseTransport):
         self._connection_pool.close()
 
 
+_CONNECTOR_HTTP_CLIENT = httpx.Client(
+    transport=_OutboundPolicyHTTPTransport(),
+    follow_redirects=False,
+    timeout=15.0,
+)
+
+
 @contextmanager
 def _stream_connector_request(method: str, url: str, **kwargs: Any) -> Iterator[httpx.Response]:
-    with httpx.Client(
+    timeout = kwargs.pop("timeout", 15.0)
-        transport=_OutboundPolicyHTTPTransport(),
+    with _CONNECTOR_HTTP_CLIENT.stream(
-        follow_redirects=False,
+        method,
-        timeout=kwargs.pop("timeout", 15.0),
+        url,
-    ) as client:
+        timeout=timeout,
-        with client.stream(method, url, **kwargs) as response:
+        **kwargs,
-            yield response
+    ) as response:
+        yield response
 
 
 def request_connector_bytes(

src/govoplan_files/backend/storage/integrity.py

@@ -0,0 +1,512 @@
+from __future__ import annotations
+
+import hashlib
+from dataclasses import dataclass
+
+from sqlalchemy.orm import Session
+
+from govoplan_files.backend.db.models import (
+    FileBlob,
+    FileIntegrityFinding,
+    FileIntegrityScan,
+)
+from govoplan_files.backend.storage.backends import (
+    StorageBackend,
+    StorageBackendError,
+    StorageObjectMissing,
+    get_storage_backend,
+)
+from govoplan_files.backend.storage.common import FileStorageError, utcnow
+
+
+TERMINAL_SCAN_STATUSES = {"completed", "cancelled"}
+QUARANTINED_BLOB_STATUSES = {
+    "missing",
+    "size_mismatch",
+    "checksum_mismatch",
+}
+
+
+@dataclass(frozen=True, slots=True)
+class BlobInspection:
+    valid: bool
+    kind: str
+    observed_size_bytes: int | None = None
+    observed_checksum_sha256: str | None = None
+
+
+@dataclass(frozen=True, slots=True)
+class IntegrityActionResult:
+    action: str
+    changed: bool
+    dry_run: bool
+    finding: FileIntegrityFinding
+    inspection: BlobInspection | None = None
+
+
+def storage_prefix_for_tenant(tenant_id: str) -> str:
+    return f"tenants/{tenant_id}/files/"
+
+
+def create_integrity_scan(
+    session: Session,
+    *,
+    tenant_id: str,
+    user_id: str,
+    verify_checksums: bool = True,
+    batch_size: int = 100,
+    backend: StorageBackend | None = None,
+) -> FileIntegrityScan:
+    active_backend = backend or get_storage_backend()
+    scan = FileIntegrityScan(
+        tenant_id=tenant_id,
+        storage_backend=active_backend.name,
+        storage_prefix=storage_prefix_for_tenant(tenant_id),
+        verify_checksums=verify_checksums,
+        batch_size=max(1, min(int(batch_size), 1000)),
+        created_by_user_id=user_id,
+    )
+    session.add(scan)
+    session.flush()
+    return scan
+
+
+def run_integrity_scan_batch(
+    session: Session,
+    scan: FileIntegrityScan,
+    *,
+    backend: StorageBackend | None = None,
+) -> FileIntegrityScan:
+    if scan.status in TERMINAL_SCAN_STATUSES:
+        return scan
+    active_backend = backend or get_storage_backend()
+    if active_backend.name != scan.storage_backend:
+        raise FileStorageError(
+            "The configured storage backend changed after this integrity scan started"
+        )
+    if scan.started_at is None:
+        scan.started_at = utcnow()
+    scan.status = "running"
+    scan.last_error = None
+    if scan.phase == "blobs":
+        _scan_blob_batch(session, scan, active_backend)
+    elif scan.phase == "objects":
+        _scan_object_batch(session, scan, active_backend)
+    else:
+        scan.phase = "completed"
+        scan.status = "completed"
+        scan.completed_at = utcnow()
+    session.add(scan)
+    return scan
+
+
+def mark_integrity_scan_failed(
+    scan: FileIntegrityScan,
+    *,
+    error: Exception,
+) -> None:
+    scan.status = "failed"
+    scan.last_error = type(error).__name__[:255]
+
+
+def inspect_blob(
+    blob: FileBlob,
+    *,
+    backend: StorageBackend,
+    verify_checksum: bool = True,
+) -> BlobInspection:
+    try:
+        info = backend.stat(blob.storage_key)
+    except StorageObjectMissing:
+        return BlobInspection(valid=False, kind="missing")
+    if info.size_bytes != blob.size_bytes:
+        return BlobInspection(
+            valid=False,
+            kind="size_mismatch",
+            observed_size_bytes=info.size_bytes,
+        )
+    if not verify_checksum:
+        return BlobInspection(
+            valid=True,
+            kind="verified",
+            observed_size_bytes=info.size_bytes,
+        )
+    digest = hashlib.sha256()
+    observed_size = 0
+    for chunk in backend.iter_bytes(blob.storage_key):
+        observed_size += len(chunk)
+        digest.update(chunk)
+    observed_checksum = digest.hexdigest()
+    if observed_size != blob.size_bytes:
+        return BlobInspection(
+            valid=False,
+            kind="size_mismatch",
+            observed_size_bytes=observed_size,
+            observed_checksum_sha256=observed_checksum,
+        )
+    if observed_checksum != blob.checksum_sha256:
+        return BlobInspection(
+            valid=False,
+            kind="checksum_mismatch",
+            observed_size_bytes=observed_size,
+            observed_checksum_sha256=observed_checksum,
+        )
+    return BlobInspection(
+        valid=True,
+        kind="verified",
+        observed_size_bytes=observed_size,
+        observed_checksum_sha256=observed_checksum,
+    )
+
+
+def apply_blob_inspection(
+    session: Session,
+    blob: FileBlob,
+    inspection: BlobInspection,
+    *,
+    checked_at=None,
+) -> None:
+    timestamp = checked_at or utcnow()
+    blob.integrity_checked_at = timestamp
+    if inspection.valid:
+        blob.integrity_status = "verified"
+        blob.integrity_failure = None
+        blob.quarantined_at = None
+    else:
+        blob.integrity_status = inspection.kind
+        blob.integrity_failure = inspection.kind
+        blob.quarantined_at = blob.quarantined_at or timestamp
+    session.add(blob)
+
+
+def ensure_blob_is_readable(blob: FileBlob) -> None:
+    if blob.integrity_status in QUARANTINED_BLOB_STATUSES or blob.quarantined_at:
+        raise FileStorageError(
+            "Managed file content is quarantined because integrity verification failed"
+        )
+
+
+def read_verified_blob_bytes(
+    blob: FileBlob,
+    *,
+    backend: StorageBackend,
+) -> bytes:
+    ensure_blob_is_readable(blob)
+    try:
+        data = backend.get_bytes(blob.storage_key)
+    except StorageBackendError as exc:
+        raise FileStorageError("Managed file content is not available") from exc
+    if len(data) != blob.size_bytes:
+        raise FileStorageError(
+            "Managed file content failed its recorded size verification"
+        )
+    if hashlib.sha256(data).hexdigest() != blob.checksum_sha256:
+        raise FileStorageError(
+            "Managed file content failed its recorded checksum verification"
+        )
+    return data
+
+
+def recheck_integrity_finding(
+    session: Session,
+    finding: FileIntegrityFinding,
+    *,
+    user_id: str,
+    dry_run: bool,
+    backend: StorageBackend | None = None,
+) -> IntegrityActionResult:
+    if finding.kind == "orphan_object" or not finding.blob_id:
+        raise FileStorageError("Only blob integrity findings can be rechecked")
+    blob = session.get(FileBlob, finding.blob_id)
+    if blob is None or blob.tenant_id != finding.tenant_id:
+        raise FileStorageError("Integrity finding blob no longer exists")
+    active_backend = backend or get_storage_backend()
+    scan = session.get(FileIntegrityScan, finding.scan_id)
+    if scan is None or scan.storage_backend != active_backend.name:
+        raise FileStorageError(
+            "The configured storage backend does not match the integrity finding"
+        )
+    inspection = inspect_blob(
+        blob,
+        backend=active_backend,
+        verify_checksum=True,
+    )
+    changed = False
+    if not dry_run:
+        previous = (
+            blob.integrity_status,
+            blob.quarantined_at,
+            finding.state,
+        )
+        apply_blob_inspection(session, blob, inspection)
+        _update_finding_from_inspection(finding, inspection)
+        if inspection.valid:
+            finding.state = "resolved"
+            finding.resolved_at = utcnow()
+            finding.resolved_by_user_id = user_id
+        session.add(finding)
+        changed = previous != (
+            blob.integrity_status,
+            blob.quarantined_at,
+            finding.state,
+        )
+    return IntegrityActionResult(
+        action="recheck",
+        changed=changed,
+        dry_run=dry_run,
+        finding=finding,
+        inspection=inspection,
+    )
+
+
+def cleanup_orphan_finding(
+    session: Session,
+    finding: FileIntegrityFinding,
+    *,
+    user_id: str,
+    dry_run: bool,
+    backend: StorageBackend | None = None,
+) -> IntegrityActionResult:
+    if finding.kind != "orphan_object":
+        raise FileStorageError("Only orphan-object findings can be cleaned up")
+    scan = session.get(FileIntegrityScan, finding.scan_id)
+    if scan is None or scan.tenant_id != finding.tenant_id:
+        raise FileStorageError("Integrity scan not found")
+    if not finding.storage_key.startswith(scan.storage_prefix):
+        raise FileStorageError("Orphan cleanup is outside the scan storage scope")
+    referenced = (
+        session.query(FileBlob.id)
+        .filter(
+            FileBlob.tenant_id == finding.tenant_id,
+            FileBlob.storage_backend == scan.storage_backend,
+            FileBlob.storage_key == finding.storage_key,
+        )
+        .first()
+    )
+    if referenced:
+        if not dry_run and finding.state != "resolved":
+            finding.state = "resolved"
+            finding.resolved_at = utcnow()
+            finding.resolved_by_user_id = user_id
+            session.add(finding)
+            return IntegrityActionResult(
+                action="retained_referenced",
+                changed=True,
+                dry_run=False,
+                finding=finding,
+            )
+        return IntegrityActionResult(
+            action="retained_referenced",
+            changed=False,
+            dry_run=dry_run,
+            finding=finding,
+        )
+    if finding.state == "deleted":
+        return IntegrityActionResult(
+            action="already_deleted",
+            changed=False,
+            dry_run=dry_run,
+            finding=finding,
+        )
+    if dry_run:
+        return IntegrityActionResult(
+            action="would_delete",
+            changed=False,
+            dry_run=True,
+            finding=finding,
+        )
+    active_backend = backend or get_storage_backend()
+    if active_backend.name != scan.storage_backend:
+        raise FileStorageError(
+            "The configured storage backend does not match the integrity finding"
+        )
+    try:
+        active_backend.stat(finding.storage_key)
+    except StorageObjectMissing:
+        action = "already_absent"
+    else:
+        active_backend.delete(finding.storage_key)
+        action = "deleted"
+    finding.state = "deleted"
+    finding.resolved_at = utcnow()
+    finding.resolved_by_user_id = user_id
+    session.add(finding)
+    return IntegrityActionResult(
+        action=action,
+        changed=True,
+        dry_run=False,
+        finding=finding,
+    )
+
+
+def _scan_blob_batch(
+    session: Session,
+    scan: FileIntegrityScan,
+    backend: StorageBackend,
+) -> None:
+    query = session.query(FileBlob).filter(
+        FileBlob.tenant_id == scan.tenant_id,
+        FileBlob.storage_backend == scan.storage_backend,
+    )
+    if scan.blob_cursor:
+        query = query.filter(FileBlob.id > scan.blob_cursor)
+    blobs = query.order_by(FileBlob.id.asc()).limit(scan.batch_size).all()
+    for blob in blobs:
+        inspection = inspect_blob(
+            blob,
+            backend=backend,
+            verify_checksum=scan.verify_checksums,
+        )
+        apply_blob_inspection(session, blob, inspection)
+        scan.scanned_blob_count += 1
+        if inspection.valid:
+            scan.verified_blob_count += 1
+            _resolve_scan_blob_findings(session, scan, blob)
+        else:
+            scan.quarantined_blob_count += 1
+            _record_blob_finding(session, scan, blob, inspection)
+        scan.blob_cursor = blob.id
+    if len(blobs) < scan.batch_size:
+        scan.phase = "objects"
+        scan.object_cursor = None
+
+
+def _scan_object_batch(
+    session: Session,
+    scan: FileIntegrityScan,
+    backend: StorageBackend,
+) -> None:
+    page = backend.list_objects(
+        prefix=scan.storage_prefix,
+        after=scan.object_cursor,
+        limit=scan.batch_size,
+    )
+    keys = [item.key for item in page.objects]
+    referenced_keys = {
+        row[0]
+        for row in session.query(FileBlob.storage_key)
+        .filter(
+            FileBlob.tenant_id == scan.tenant_id,
+            FileBlob.storage_backend == scan.storage_backend,
+            FileBlob.storage_key.in_(keys),
+        )
+        .all()
+    } if keys else set()
+    for item in page.objects:
+        scan.scanned_object_count += 1
+        if item.key in referenced_keys:
+            continue
+        scan.orphan_object_count += 1
+        _record_orphan_finding(
+            session,
+            scan,
+            storage_key=item.key,
+            size_bytes=item.size_bytes,
+        )
+    scan.object_cursor = page.next_cursor
+    if page.next_cursor is None:
+        scan.phase = "completed"
+        scan.status = "completed"
+        scan.completed_at = utcnow()
+
+
+def _record_blob_finding(
+    session: Session,
+    scan: FileIntegrityScan,
+    blob: FileBlob,
+    inspection: BlobInspection,
+) -> FileIntegrityFinding:
+    finding = (
+        session.query(FileIntegrityFinding)
+        .filter(
+            FileIntegrityFinding.scan_id == scan.id,
+            FileIntegrityFinding.blob_id == blob.id,
+            FileIntegrityFinding.kind == inspection.kind,
+        )
+        .one_or_none()
+    )
+    if finding is None:
+        finding = FileIntegrityFinding(
+            scan_id=scan.id,
+            tenant_id=scan.tenant_id,
+            kind=inspection.kind,
+            blob_id=blob.id,
+            storage_key=blob.storage_key,
+            expected_size_bytes=blob.size_bytes,
+            expected_checksum_sha256=blob.checksum_sha256,
+        )
+    _update_finding_from_inspection(finding, inspection)
+    session.add(finding)
+    return finding
+
+
+def _record_orphan_finding(
+    session: Session,
+    scan: FileIntegrityScan,
+    *,
+    storage_key: str,
+    size_bytes: int,
+) -> FileIntegrityFinding:
+    finding = (
+        session.query(FileIntegrityFinding)
+        .filter(
+            FileIntegrityFinding.scan_id == scan.id,
+            FileIntegrityFinding.kind == "orphan_object",
+            FileIntegrityFinding.storage_key == storage_key,
+        )
+        .one_or_none()
+    )
+    if finding is None:
+        finding = FileIntegrityFinding(
+            scan_id=scan.id,
+            tenant_id=scan.tenant_id,
+            kind="orphan_object",
+            storage_key=storage_key,
+            observed_size_bytes=size_bytes,
+        )
+        session.add(finding)
+    return finding
+
+
+def _resolve_scan_blob_findings(
+    session: Session,
+    scan: FileIntegrityScan,
+    blob: FileBlob,
+) -> None:
+    for finding in (
+        session.query(FileIntegrityFinding)
+        .filter(
+            FileIntegrityFinding.scan_id == scan.id,
+            FileIntegrityFinding.blob_id == blob.id,
+            FileIntegrityFinding.state == "open",
+        )
+        .all()
+    ):
+        finding.state = "resolved"
+        finding.resolved_at = utcnow()
+        session.add(finding)
+
+
+def _update_finding_from_inspection(
+    finding: FileIntegrityFinding,
+    inspection: BlobInspection,
+) -> None:
+    finding.observed_size_bytes = inspection.observed_size_bytes
+    finding.observed_checksum_sha256 = inspection.observed_checksum_sha256
+
+
+__all__ = [
+    "BlobInspection",
+    "IntegrityActionResult",
+    "QUARANTINED_BLOB_STATUSES",
+    "apply_blob_inspection",
+    "cleanup_orphan_finding",
+    "create_integrity_scan",
+    "ensure_blob_is_readable",
+    "inspect_blob",
+    "mark_integrity_scan_failed",
+    "read_verified_blob_bytes",
+    "recheck_integrity_finding",
+    "run_integrity_scan_batch",
+    "storage_prefix_for_tenant",
+]

src/govoplan_files/backend/storage/share_state.py

@@ -0,0 +1,34 @@
+from __future__ import annotations
+
+from datetime import datetime, timezone
+
+from sqlalchemy import and_, or_
+
+from govoplan_files.backend.db.models import FileShare
+from govoplan_files.backend.storage.common import utcnow
+
+
+def effective_file_share_clause(*, at: datetime | None = None):
+    checked_at = at or utcnow()
+    return and_(
+        FileShare.revoked_at.is_(None),
+        or_(FileShare.expires_at.is_(None), FileShare.expires_at > checked_at),
+    )
+
+
+def file_share_is_active(share: FileShare, *, at: datetime | None = None) -> bool:
+    if share.revoked_at is not None:
+        return False
+    if share.expires_at is None:
+        return True
+    checked_at = _aware_utc(at or utcnow())
+    return _aware_utc(share.expires_at) > checked_at
+
+
+def _aware_utc(value: datetime) -> datetime:
+    if value.tzinfo is None:
+        return value.replace(tzinfo=timezone.utc)
+    return value.astimezone(timezone.utc)
+
+
+__all__ = ["effective_file_share_clause", "file_share_is_active"]

tests/test_access_provider.py

@@ -1,15 +1,18 @@
 from __future__ import annotations
 
 import unittest
+from datetime import datetime, timedelta, timezone
 
-from sqlalchemy import create_engine
+from sqlalchemy import create_engine, text
 from sqlalchemy.orm import sessionmaker
 
 from govoplan_access.backend.db.models import Account, Group, User
 from govoplan_core.core.access import PrincipalRef
+from govoplan_core.core.change_sequence import ChangeSequenceEntry
 from govoplan_core.db.base import Base
 from govoplan_files.backend.capabilities import FilesAccessService, virtual_folder_resource_id
 from govoplan_files.backend.db.models import FileAsset, FileFolder, FileShare
+from govoplan_files.backend.storage.files import count_assets_for_user, list_assets_for_user
 
 
 TENANT_ID = "tenant-1"
@@ -75,10 +78,123 @@ class FilesAccessProviderTests(unittest.TestCase):
         self.assertTrue(any(item.kind == "owner" and item.id == GROUP_ID for item in virtual_items))
         self.assertEqual("files.not_found", missing_items[0].source)
 
+    def test_file_property_filters_cover_campaign_and_audit_usage(self) -> None:
+        session = _session()
+        self.addCleanup(_close_session, session)
+        _seed_access_subjects(session)
+        assets = [
+            FileAsset(
+                id=f"file-{index}",
+                tenant_id=TENANT_ID,
+                owner_type="user",
+                owner_user_id=USER_ID,
+                display_path=f"{index}.pdf",
+                filename=f"{index}.pdf",
+            )
+            for index in range(1, 4)
+        ]
+        session.add_all([
+            *assets,
+            FileShare(
+                id="share-campaign",
+                tenant_id=TENANT_ID,
+                file_asset_id=assets[0].id,
+                target_type="campaign",
+                target_id="campaign-1",
+                permission="read",
+            ),
+            FileShare(
+                id="share-campaign-expired",
+                tenant_id=TENANT_ID,
+                file_asset_id=assets[2].id,
+                target_type="campaign",
+                target_id="campaign-1",
+                permission="read",
+                expires_at=datetime.now(timezone.utc) - timedelta(seconds=1),
+            ),
+        ])
+        session.commit()
+        session.execute(
+            text(
+                "INSERT INTO campaign_attachment_uses "
+                "(id, tenant_id, file_asset_id, use_stage) "
+                "VALUES (:id, :tenant_id, :file_asset_id, :use_stage)"
+            ),
+            {
+                "id": "attachment-use-1",
+                "tenant_id": TENANT_ID,
+                "file_asset_id": assets[1].id,
+                "use_stage": "sent",
+            },
+        )
+        session.commit()
+
+        linked = list_assets_for_user(
+            session,
+            tenant_id=TENANT_ID,
+            user_id=USER_ID,
+            owner_type="user",
+            owner_id=USER_ID,
+            campaign_usage="linked",
+        )
+        unlinked = list_assets_for_user(
+            session,
+            tenant_id=TENANT_ID,
+            user_id=USER_ID,
+            owner_type="user",
+            owner_id=USER_ID,
+            campaign_usage="unlinked",
+        )
+        audit_relevant = list_assets_for_user(
+            session,
+            tenant_id=TENANT_ID,
+            user_id=USER_ID,
+            owner_type="user",
+            owner_id=USER_ID,
+            audit_relevant=True,
+        )
+
+        self.assertEqual([asset.id for asset in linked], ["file-1", "file-2"])
+        self.assertEqual([asset.id for asset in unlinked], ["file-3"])
+        self.assertEqual([asset.id for asset in audit_relevant], ["file-2"])
+        self.assertEqual(
+            count_assets_for_user(
+                session,
+                tenant_id=TENANT_ID,
+                user_id=USER_ID,
+                owner_type="user",
+                owner_id=USER_ID,
+                campaign_usage="unlinked",
+            ),
+            1,
+        )
+
 
 def _session():
     engine = create_engine("sqlite:///:memory:", future=True)
-    Base.metadata.create_all(bind=engine, tables=[Account.__table__, User.__table__, Group.__table__, FileAsset.__table__, FileFolder.__table__, FileShare.__table__])
+    Base.metadata.create_all(
+        bind=engine,
+        tables=[
+            Account.__table__,
+            User.__table__,
+            Group.__table__,
+            ChangeSequenceEntry.__table__,
+            FileAsset.__table__,
+            FileFolder.__table__,
+            FileShare.__table__,
+        ],
+    )
+    with engine.begin() as connection:
+        connection.execute(
+            text(
+                "CREATE TABLE campaign_attachment_uses ("
+                "id VARCHAR(36) PRIMARY KEY, "
+                "tenant_id VARCHAR(36) NOT NULL, "
+                "file_asset_id VARCHAR(36) NOT NULL, "
+                "use_stage VARCHAR(20) NOT NULL"
+                ")"
+            )
+        )
     return sessionmaker(bind=engine, future=True)()
 
 

tests/test_connector_credential_deletion.py

@@ -12,7 +12,8 @@ from govoplan_core.core.change_sequence import ChangeSequenceEntry
 from govoplan_core.db.base import Base
 from govoplan_core.security.secrets import encrypt_secret
 from govoplan_files.backend.db.models import FileConnectorCredential, FileConnectorProfile
-from govoplan_files.backend.router import deactivate_connector_credential, deactivate_connector_profile
+from govoplan_files.backend.routes.connector_profiles import deactivate_connector_profile
+from govoplan_files.backend.routes.connector_settings import deactivate_connector_credential
 
 
 class Principal:
@@ -169,6 +170,10 @@ class ConnectorCredentialDeletionTests(unittest.TestCase):
             "govoplan_files.backend.storage.connector_credential_deletion.audit_event"
         ) as audit:
             plan.destroy_data_executor(self.session, "files")
+        # The retirement executor deliberately enlists secret scrubbing, audit
+        # writes, and DDL in the caller-owned transaction.  Commit that unit of
+        # work before inspecting through a separate Engine connection.
+        self.session.commit()
 
         self.assertEqual(2, audit.call_count)
         self.assertEqual(
@@ -193,6 +198,7 @@ class ConnectorCredentialDeletionTests(unittest.TestCase):
             "govoplan_files.backend.storage.connector_credential_deletion.audit_event"
         ) as audit:
             plan.destroy_data_executor(self.session, "files")
+        self.session.commit()
 
         audit.assert_called_once()
         details = audit.call_args.kwargs["details"]

tests/test_connector_deployment.py

@@ -10,7 +10,7 @@ from unittest.mock import MagicMock
 
 from fastapi import HTTPException
 
-from govoplan_files.backend.router import discover_connector_endpoint
+from govoplan_files.backend.routes.connector_settings import discover_connector_endpoint
 from govoplan_files.backend.schemas import FileConnectorDiscoveryRequest
 from govoplan_files.backend.storage.connector_browse import ConnectorBrowseError, _profile_password, _s3_verify
 from govoplan_files.backend.storage.connector_deployment import (
@@ -182,7 +182,7 @@ class ConnectorDiscoveryBoundaryTests(unittest.TestCase):
             credential_mode="basic",
             credentials={"username": "admin", "password_env": "MASTER_KEY_B64"},
         )
-        with patch("govoplan_files.backend.router.browse_connector_profile") as browse, self.assertRaises(
+        with patch("govoplan_files.backend.routes.connector_settings.browse_connector_profile") as browse, self.assertRaises(
             HTTPException
         ) as raised:
             discover_connector_endpoint(payload, session=object(), principal=self._principal())  # type: ignore[arg-type]
@@ -212,10 +212,10 @@ class ConnectorDiscoveryBoundaryTests(unittest.TestCase):
             events.append("io")
             return []
 
-        with patch("govoplan_files.backend.router._ensure_connector_configuration_allowed", side_effect=ensure), patch(
+        with patch("govoplan_files.backend.routes.connector_settings._ensure_connector_configuration_allowed", side_effect=ensure), patch(
-            "govoplan_files.backend.router._audit_connector_discovery_attempt",
+            "govoplan_files.backend.routes.connector_settings._audit_connector_discovery_attempt",
             side_effect=audit,
-        ), patch("govoplan_files.backend.router.browse_connector_profile", side_effect=browse):
+        ), patch("govoplan_files.backend.routes.connector_settings.browse_connector_profile", side_effect=browse):
             response = discover_connector_endpoint(payload, session=object(), principal=self._principal())  # type: ignore[arg-type]
 
         self.assertEqual("usable", response.status)

tests/test_connector_policy.py

@@ -0,0 +1,66 @@
+from __future__ import annotations
+
+import unittest
+
+from govoplan_files.backend.storage.connector_policy import (
+    ConnectorAccessRequest,
+    ConnectorPolicySource,
+    connector_policy_decision,
+)
+
+
+class ConnectorPolicyPatternTests(unittest.TestCase):
+    def test_resource_reference_allow_patterns_match(self) -> None:
+        decision = connector_policy_decision(
+            ConnectorAccessRequest(
+                connector_id="dev-smb",
+                credential_id="credential-primary",
+                provider="smb",
+            ),
+            (
+                ConnectorPolicySource(
+                    scope_type="tenant",
+                    scope_id="tenant-1",
+                    label="Tenant",
+                    policy={
+                        "allow": {
+                            "connectors": ["dev-*"],
+                            "credentials": ["credential-*"],
+                            "providers": ["s?b"],
+                        }
+                    },
+                ),
+            ),
+        )
+
+        self.assertTrue(decision.allowed)
+
+    def test_resource_reference_deny_patterns_take_precedence(self) -> None:
+        decision = connector_policy_decision(
+            ConnectorAccessRequest(
+                connector_id="dev-smb",
+                credential_id="credential-legacy",
+                provider="smb",
+            ),
+            (
+                ConnectorPolicySource(
+                    scope_type="tenant",
+                    scope_id="tenant-1",
+                    label="Tenant",
+                    policy={
+                        "allow": {"connectors": ["dev-*"]},
+                        "deny": {"credentials": ["*-legacy"]},
+                    },
+                ),
+            ),
+        )
+
+        self.assertFalse(decision.allowed)
+        self.assertEqual(
+            ("connector_policy_denylist",),
+            decision.requirements,
+        )
+
+
+if __name__ == "__main__":
+    unittest.main()

tests/test_connector_profile_store.py

@@ -0,0 +1,228 @@
+from __future__ import annotations
+
+import json
+import unittest
+from unittest.mock import patch
+
+from sqlalchemy import create_engine
+from sqlalchemy.orm import sessionmaker
+
+from govoplan_access.backend.db import models as access_models  # noqa: F401 - resolve Files user foreign keys
+from govoplan_core.db.base import Base
+from govoplan_core.security.credential_envelopes import CredentialEnvelope
+from govoplan_core.security.secrets import decrypt_secret, encrypt_secret
+from govoplan_files.backend.db.models import FileConnectorProfile
+from govoplan_files.backend.storage.common import FileStorageError
+from govoplan_files.backend.storage.connector_profile_store import (
+    list_database_connector_profiles,
+    update_connector_profile_row,
+)
+
+
+class ConnectorProfileStoreUpdateTests(unittest.TestCase):
+    def setUp(self) -> None:
+        self.engine = create_engine("sqlite:///:memory:")
+        Base.metadata.create_all(
+            self.engine,
+            tables=[
+                FileConnectorProfile.__table__,
+                CredentialEnvelope.__table__,
+            ],
+        )
+        self.session = sessionmaker(bind=self.engine)()
+        self.row = FileConnectorProfile(
+            id="profile-1",
+            tenant_id="tenant-1",
+            scope_type="tenant",
+            scope_id="tenant-1",
+            label="Original profile",
+            provider="webdav",
+            endpoint_url="https://dav.example.test/original",
+            base_path="original",
+            enabled=True,
+            credential_mode="basic",
+            username="original-user",
+            password_encrypted=encrypt_secret("original-password"),
+            token_encrypted=encrypt_secret("original-token"),
+            capabilities=["browse"],
+            policy={"allow": {"providers": ["webdav"]}},
+            metadata_={"original": True},
+            created_by_user_id=None,
+            updated_by_user_id=None,
+        )
+        self.session.add(self.row)
+        self.session.commit()
+
+    def tearDown(self) -> None:
+        self.session.close()
+        Base.metadata.drop_all(bind=self.engine)
+        self.engine.dispose()
+
+    def test_update_preserves_normalization_and_flush_only_transaction_boundary(self) -> None:
+        updated = update_connector_profile_row(
+            self.session,
+            self.row,
+            user_id="user-2",
+            label="  Updated profile  ",
+            provider="NEXTCLOUD",
+            endpoint_url="  https://cloud.example.test/dav  ",
+            base_path="  shared/reports  ",
+            enabled=False,
+            credential_profile_id="  credential-2  ",
+            credential_mode="TOKEN",
+            username="  updated-user  ",
+            password="updated-password",
+            token="updated-token",
+            capabilities=["browse", " import ", ""],
+            policy={"deny": {"external_paths": ["private"]}},
+            metadata={"department": "reports"},
+        )
+
+        self.assertIs(self.row, updated)
+        self.assertEqual("Updated profile", updated.label)
+        self.assertEqual("nextcloud", updated.provider)
+        self.assertEqual("https://cloud.example.test/dav", updated.endpoint_url)
+        self.assertEqual("shared/reports", updated.base_path)
+        self.assertFalse(updated.enabled)
+        self.assertEqual("credential-2", updated.credential_profile_id)
+        self.assertEqual("token", updated.credential_mode)
+        self.assertEqual("updated-user", updated.username)
+        self.assertEqual("updated-password", decrypt_secret(updated.password_encrypted))
+        self.assertEqual("updated-token", decrypt_secret(updated.token_encrypted))
+        self.assertEqual(["browse", "import"], updated.capabilities)
+        self.assertEqual({"deny": {"external_paths": ["private"]}}, updated.policy)
+        self.assertEqual({"department": "reports"}, updated.metadata_)
+        self.assertEqual("user-2", updated.updated_by_user_id)
+
+        self.session.rollback()
+        persisted = self.session.get(FileConnectorProfile, self.row.id)
+        assert persisted is not None
+        self.assertEqual("Original profile", persisted.label)
+        self.assertEqual("original-password", decrypt_secret(persisted.password_encrypted))
+        self.assertTrue(persisted.enabled)
+
+    def test_secret_replacement_wins_over_clear_while_clear_removes_an_omitted_token(self) -> None:
+        update_connector_profile_row(
+            self.session,
+            self.row,
+            user_id="user-2",
+            password="replacement-password",
+            clear_password=True,
+            clear_token=True,
+        )
+
+        self.assertEqual("replacement-password", decrypt_secret(self.row.password_encrypted))
+        self.assertIsNone(self.row.token_encrypted)
+        self.assertEqual("https://dav.example.test/original", self.row.endpoint_url)
+        self.assertEqual("original-user", self.row.username)
+
+    def test_legacy_external_secret_reference_cannot_be_cleared_or_partially_mutate_the_row(self) -> None:
+        self.row.secret_ref = "vault:tenant-1:files:profile"
+        self.session.commit()
+
+        with self.assertRaisesRegex(FileStorageError, "provider-side deletion"):
+            update_connector_profile_row(
+                self.session,
+                self.row,
+                user_id="user-2",
+                label="Must not be applied",
+                secret_ref="",
+            )
+
+        self.assertEqual("Original profile", self.row.label)
+        self.assertEqual("vault:tenant-1:files:profile", self.row.secret_ref)
+
+    def test_flush_failure_remains_rollback_safe(self) -> None:
+        with patch.object(self.session, "flush", side_effect=RuntimeError("database unavailable")), self.assertRaisesRegex(
+            RuntimeError,
+            "database unavailable",
+        ):
+            update_connector_profile_row(
+                self.session,
+                self.row,
+                user_id="user-2",
+                label="Uncommitted profile",
+                password="uncommitted-password",
+            )
+
+        self.session.rollback()
+        persisted = self.session.get(FileConnectorProfile, self.row.id)
+        assert persisted is not None
+        self.assertEqual("Original profile", persisted.label)
+        self.assertEqual("original-password", decrypt_secret(persisted.password_encrypted))
+
+    def test_visibility_filter_runs_before_connector_secrets_are_decrypted(self) -> None:
+        invisible = FileConnectorProfile(
+            id="invisible-profile",
+            tenant_id="tenant-1",
+            scope_type="user",
+            scope_id="another-user",
+            label="Invisible profile",
+            provider="webdav",
+            endpoint_url="https://invisible.example.test",
+            enabled=True,
+            credential_mode="basic",
+            password_encrypted="not-a-valid-encrypted-secret",
+            capabilities=["browse"],
+            policy={},
+            metadata_={},
+        )
+        self.session.add(invisible)
+        self.session.commit()
+
+        profiles = list_database_connector_profiles(
+            self.session,
+            tenant_id="tenant-1",
+            row_visible=lambda row: row.id == self.row.id,
+        )
+
+        self.assertEqual([self.row.id], [profile.id for profile in profiles])
+        self.assertEqual("original-password", profiles[0].password_value)
+
+    def test_reusable_credential_resolves_and_revocation_keeps_profile_visible(self) -> None:
+        credential = CredentialEnvelope(
+            id="shared-credential",
+            tenant_id="tenant-1",
+            scope_type="tenant",
+            scope_id="tenant-1",
+            name="Shared WebDAV login",
+            credential_kind="username_password",
+            public_data={"username": "ada"},
+            secret_data_encrypted=encrypt_secret(json.dumps({"password": "secret"})),
+            secret_keys=["password"],
+            allowed_modules=["files"],
+            allowed_server_refs=[],
+            inherit_to_lower_scopes=True,
+            is_active=True,
+            revision="revision-1",
+        )
+        self.row.credential_profile_id = "credential-envelope:shared-credential"
+        self.row.username = None
+        self.row.password_encrypted = None
+        self.row.token_encrypted = None
+        self.session.add(credential)
+        self.session.commit()
+
+        profile = list_database_connector_profiles(
+            self.session,
+            tenant_id="tenant-1",
+        )[0]
+
+        self.assertEqual("ada", profile.username)
+        self.assertEqual("secret", profile.password_value)
+        self.assertTrue(profile.credentials_configured)
+
+        credential.is_active = False
+        self.session.commit()
+        profile = list_database_connector_profiles(
+            self.session,
+            tenant_id="tenant-1",
+        )[0]
+
+        self.assertIsNone(profile.password_value)
+        self.assertFalse(profile.credentials_configured)
+        self.assertTrue(profile.metadata["credential_unavailable"])
+
+
+if __name__ == "__main__":
+    unittest.main()

tests/test_connector_visibility.py

@@ -0,0 +1,265 @@
+from __future__ import annotations
+
+import unittest
+from dataclasses import replace
+from unittest.mock import patch
+
+from govoplan_files.backend.storage.connector_policy import ConnectorPolicySource
+from govoplan_files.backend.storage.connector_profiles import ConnectorProfile
+from govoplan_files.backend.storage.connector_visibility import (
+    connector_profile_usable_for_import,
+    visible_connector_profiles_for_actor,
+)
+
+
+def _profile(
+    profile_id: str,
+    *,
+    scope_type: str = "system",
+    scope_id: str | None = None,
+    provider: str = "webdav",
+    enabled: bool = True,
+) -> ConnectorProfile:
+    return ConnectorProfile(
+        id=profile_id,
+        label=profile_id,
+        provider=provider,
+        scope_type=scope_type,
+        scope_id=scope_id,
+        endpoint_url=f"https://{profile_id}.example.invalid",
+        enabled=enabled,
+        credential_mode="anonymous",
+    )
+
+
+class ConnectorVisibilityTests(unittest.TestCase):
+    @patch(
+        "govoplan_files.backend.storage.connector_visibility.effective_connector_policy_sources",
+        return_value=[],
+    )
+    @patch(
+        "govoplan_files.backend.storage.connector_visibility.connector_profiles_from_settings"
+    )
+    @patch(
+        "govoplan_files.backend.storage.connector_visibility.select_database_connector_profiles"
+    )
+    def test_profiles_are_filtered_to_actor_scopes_and_database_definition_wins(
+        self,
+        database_profiles,
+        configured_profiles,
+        _policy_sources,
+    ) -> None:
+        profiles = [
+            _profile("system"),
+            _profile("tenant", scope_type="tenant", scope_id="tenant-1"),
+            _profile("other-tenant", scope_type="tenant", scope_id="tenant-2"),
+            _profile("user", scope_type="user", scope_id="user-1"),
+            _profile("other-user", scope_type="user", scope_id="user-2"),
+            _profile("group", scope_type="group", scope_id="group-1"),
+            _profile("campaign", scope_type="campaign", scope_id="campaign-1"),
+            _profile("disabled", enabled=False),
+            _profile("duplicate", provider="webdav"),
+        ]
+        database_profiles.return_value = (profiles, {profile.id for profile in profiles})
+        configured_profiles.return_value = [_profile("duplicate", provider="nextcloud")]
+
+        visible = visible_connector_profiles_for_actor(
+            object(),  # type: ignore[arg-type]
+            tenant_id="tenant-1",
+            user_id="user-1",
+            group_ids={"group-1"},
+            settings=object(),
+            campaign_visible=lambda campaign_id: campaign_id == "campaign-1",
+        )
+
+        self.assertEqual(
+            {"system", "tenant", "user", "group", "campaign", "duplicate"},
+            {profile.id for profile in visible},
+        )
+        duplicate = next(profile for profile in visible if profile.id == "duplicate")
+        self.assertEqual("webdav", duplicate.provider)
+
+    @patch(
+        "govoplan_files.backend.storage.connector_visibility.effective_connector_policy_sources",
+        return_value=[],
+    )
+    @patch(
+        "govoplan_files.backend.storage.connector_visibility.connector_profiles_from_settings",
+        return_value=[],
+    )
+    @patch(
+        "govoplan_files.backend.storage.connector_visibility.select_database_connector_profiles"
+    )
+    def test_campaign_and_admin_visibility_remain_explicit(
+        self,
+        database_profiles,
+        _configured_profiles,
+        _policy_sources,
+    ) -> None:
+        profiles = [
+            _profile("campaign-a", scope_type="campaign", scope_id="campaign-a"),
+            _profile("campaign-b", scope_type="campaign", scope_id="campaign-b"),
+            _profile("other-user", scope_type="user", scope_id="user-2"),
+        ]
+        database_profiles.return_value = (profiles, {profile.id for profile in profiles})
+
+        campaign_only = visible_connector_profiles_for_actor(
+            object(),  # type: ignore[arg-type]
+            tenant_id="tenant-1",
+            user_id="user-1",
+            group_ids=(),
+            settings=None,
+            campaign_id="campaign-a",
+            campaign_visible=lambda _campaign_id: True,
+        )
+        self.assertEqual(["campaign-a"], [profile.id for profile in campaign_only])
+
+        admin = visible_connector_profiles_for_actor(
+            object(),  # type: ignore[arg-type]
+            tenant_id="tenant-1",
+            user_id="user-1",
+            group_ids=(),
+            settings=None,
+            campaign_visible=None,
+            include_admin_scopes=True,
+        )
+        self.assertEqual(
+            {"campaign-a", "campaign-b", "other-user"},
+            {profile.id for profile in admin},
+        )
+
+    @patch(
+        "govoplan_files.backend.storage.connector_visibility.connector_profiles_from_settings",
+        return_value=[],
+    )
+    @patch(
+        "govoplan_files.backend.storage.connector_visibility.select_database_connector_profiles"
+    )
+    @patch(
+        "govoplan_files.backend.storage.connector_visibility.effective_connector_policy_sources"
+    )
+    def test_effective_policy_is_attached_without_mutating_profile(
+        self,
+        policy_sources,
+        database_profiles,
+        _configured_profiles,
+    ) -> None:
+        profile = _profile("profile")
+        source = ConnectorPolicySource(
+            scope_type="system",
+            label="System",
+            policy={"allow": {"providers": ["webdav"]}},
+        )
+        database_profiles.return_value = ([profile], {profile.id})
+        policy_sources.return_value = [source]
+
+        visible = visible_connector_profiles_for_actor(
+            object(),  # type: ignore[arg-type]
+            tenant_id="tenant-1",
+            user_id="user-1",
+            group_ids=(),
+            settings=None,
+        )
+
+        self.assertEqual((), profile.policy_sources)
+        self.assertEqual((source,), visible[0].policy_sources)
+
+    def test_import_usability_requires_safe_provider_credentials_endpoint_and_identity_policy(
+        self,
+    ) -> None:
+        self.assertTrue(connector_profile_usable_for_import(_profile("webdav")))
+        self.assertFalse(
+            connector_profile_usable_for_import(_profile("s3", provider="s3"))
+        )
+        self.assertFalse(
+            connector_profile_usable_for_import(_profile("smb", provider="smb"))
+        )
+        self.assertFalse(
+            connector_profile_usable_for_import(
+                _profile("sharepoint", provider="sharepoint")
+            )
+        )
+        self.assertFalse(
+            connector_profile_usable_for_import(
+                ConnectorProfile(
+                    id="no-endpoint",
+                    label="No endpoint",
+                    provider="webdav",
+                    credential_mode="anonymous",
+                )
+            )
+        )
+        self.assertFalse(
+            connector_profile_usable_for_import(
+                ConnectorProfile(
+                    id="no-credentials",
+                    label="No credentials",
+                    provider="webdav",
+                    endpoint_url="https://files.example.invalid",
+                    credential_mode="basic",
+                )
+            )
+        )
+        self.assertTrue(
+            connector_profile_usable_for_import(
+                ConnectorProfile(
+                    id="metadata-endpoint",
+                    label="Metadata endpoint",
+                    provider="webdav",
+                    credential_mode="anonymous",
+                    metadata={"webdav_endpoint_url": "https://files.example.invalid"},
+                )
+            )
+        )
+        self.assertFalse(
+            connector_profile_usable_for_import(
+                ConnectorProfile(
+                    id="unresolved-secret-reference",
+                    label="Unresolved secret reference",
+                    provider="webdav",
+                    endpoint_url="https://files.example.invalid",
+                    credential_mode="basic",
+                    secret_ref="vault://files/webdav",
+                )
+            )
+        )
+
+        denied = replace(
+            _profile("denied"),
+            policy_sources=(
+                ConnectorPolicySource(
+                    scope_type="system",
+                    label="System",
+                    policy={"deny": {"providers": ["webdav"]}},
+                ),
+            ),
+        )
+        self.assertFalse(connector_profile_usable_for_import(denied))
+
+        path_limited = replace(
+            _profile("path-limited"),
+            policy_sources=(
+                ConnectorPolicySource(
+                    scope_type="system",
+                    label="System",
+                    policy={"allow": {"external_paths": ["/approved/*"]}},
+                ),
+            ),
+        )
+        self.assertFalse(connector_profile_usable_for_import(path_limited))
+
+        endpoint_allowed = replace(
+            _profile("endpoint-allowed"),
+            policy_sources=(
+                ConnectorPolicySource(
+                    scope_type="system",
+                    label="System",
+                    policy={"allow": {"external_urls": ["https://*.example.invalid"]}},
+                ),
+            ),
+        )
+        self.assertTrue(connector_profile_usable_for_import(endpoint_allowed))
+
+
+if __name__ == "__main__":
+    unittest.main()

tests/test_documentation.py

@@ -0,0 +1,241 @@
+from __future__ import annotations
+
+import unittest
+from types import SimpleNamespace
+from unittest.mock import patch
+
+from sqlalchemy.orm import Session
+
+from govoplan_core.core.modules import DocumentationContext
+from govoplan_files.backend.documentation import documentation_topics
+from govoplan_files.backend.storage.connector_profiles import ConnectorProfile
+
+
+class _Principal:
+    tenant_id = "tenant-1"
+    user = SimpleNamespace(id="user-1")
+    group_ids = frozenset({"group-1"})
+
+    def __init__(self, scopes: set[str]) -> None:
+        self.scopes = frozenset(scopes)
+
+    def has(self, scope: str) -> bool:
+        return scope in self.scopes
+
+
+class FilesRuntimeDocumentationTests(unittest.TestCase):
+    def setUp(self) -> None:
+        self.session = Session()
+
+    def tearDown(self) -> None:
+        self.session.close()
+
+    def context(
+        self,
+        scopes: set[str],
+        *,
+        settings: object | None = None,
+        documentation_type: str = "user",
+    ) -> DocumentationContext:
+        return DocumentationContext(
+            registry=object(),
+            principal=_Principal(scopes),
+            settings=settings,
+            session=self.session,
+            documentation_type=documentation_type,  # type: ignore[arg-type]
+        )
+
+    def test_upload_tasks_state_exact_current_safe_limits(self) -> None:
+        settings = SimpleNamespace(
+            file_upload_max_bytes=7 * 1024 * 1024,
+            file_upload_zip_max_bytes=19 * 1024 * 1024,
+        )
+        with patch(
+            "govoplan_files.backend.documentation.visible_connector_profiles_for_actor",
+            return_value=[],
+        ):
+            topics = {
+                topic.id: topic
+                for topic in documentation_topics(
+                    self.context(
+                        {"files:file:read", "files:file:upload"}, settings=settings
+                    )
+                )
+            }
+
+        upload = topics["files.workflow.upload-managed-files"]
+        self.assertIn("7 MiB (7,340,032 bytes)", upload.body)
+        self.assertEqual(["files.list"], upload.metadata["help_contexts"])
+        self.assertEqual(
+            {"files:file:read", "files:file:upload"},
+            set(upload.conditions[0].required_scopes),
+        )
+
+        archive = topics["files.workflow.upload-and-unpack-zip"]
+        self.assertIn("19 MiB (19,922,944 bytes)", archive.body)
+        self.assertIn("7 MiB (7,340,032 bytes)", archive.body)
+        self.assertIn("1,000", archive.body)
+        self.assertIn("Actual extracted bytes are counted", archive.body)
+
+    def test_connector_task_requires_authority_and_a_visible_usable_profile(
+        self,
+    ) -> None:
+        usable = ConnectorProfile(
+            id="private-profile-id",
+            label="Private profile label",
+            provider="webdav",
+            scope_type="tenant",
+            scope_id="tenant-1",
+            endpoint_url="https://private.example.invalid/secret-root",
+            base_path="/secret-root",
+            credential_mode="anonymous",
+        )
+        context = self.context({"files:file:read", "files:file:upload"})
+        with patch(
+            "govoplan_files.backend.documentation.visible_connector_profiles_for_actor",
+            return_value=[usable],
+        ) as visible:
+            topics = {topic.id: topic for topic in documentation_topics(context)}
+
+        self.assertIn("files.workflow.import-managed-snapshot", topics)
+        self.assertNotIn("files.connector-import-unavailable", topics)
+        task = topics["files.workflow.import-managed-snapshot"]
+        self.assertEqual("configured", task.layer)
+        self.assertEqual(
+            ["files.list", "files.connector-import"], task.metadata["help_contexts"]
+        )
+        self.assertIn("re-authorized", task.body)
+        self.assertNotIn("private-profile-id", repr(task))
+        self.assertNotIn("private.example.invalid", repr(task))
+        self.assertNotIn("secret-root", repr(task))
+        visible.assert_called_once()
+        self.assertEqual(("group-1",), tuple(visible.call_args.kwargs["group_ids"]))
+
+        without_authority = {
+            topic.id: topic
+            for topic in documentation_topics(self.context({"files:file:read"}))
+        }
+        self.assertNotIn("files.workflow.import-managed-snapshot", without_authority)
+        self.assertIn(
+            "both permission to view Files and permission to upload",
+            without_authority["files.connector-import-unavailable"].body,
+        )
+
+    def test_connector_limitation_is_precise_but_never_exposes_profile_internals(
+        self,
+    ) -> None:
+        blocked = ConnectorProfile(
+            id="sensitive-profile-id",
+            label="Sensitive label",
+            provider="s3",
+            scope_type="tenant",
+            scope_id="tenant-1",
+            endpoint_url="https://internal.example.invalid/private",
+            base_path="/classified",
+            credential_mode="basic",
+            password_value="credential-secret",
+        )
+        with patch(
+            "govoplan_files.backend.documentation.visible_connector_profiles_for_actor",
+            return_value=[blocked],
+        ):
+            topics = {
+                topic.id: topic
+                for topic in documentation_topics(
+                    self.context({"files:file:read", "files:file:upload"})
+                )
+            }
+
+        self.assertNotIn("files.workflow.import-managed-snapshot", topics)
+        limitation = topics["files.connector-import-unavailable"]
+        self.assertEqual("available", limitation.layer)
+        self.assertIn("pinning-safe provider", limitation.body)
+        payload = repr(limitation)
+        for secret in (
+            "sensitive-profile-id",
+            "Sensitive label",
+            "internal.example.invalid",
+            "classified",
+            "credential-secret",
+        ):
+            self.assertNotIn(secret, payload)
+
+    def test_files_admin_connector_groups_do_not_widen_campaign_membership(self) -> None:
+        usable = ConnectorProfile(
+            id="group-profile",
+            label="Group profile",
+            provider="webdav",
+            scope_type="group",
+            scope_id="admin-visible-group",
+            endpoint_url="https://files.example.invalid",
+            credential_mode="anonymous",
+        )
+
+        def groups_for_actor(_session, *, include_admin_groups, **_kwargs):
+            return ["member-group", "admin-visible-group"] if include_admin_groups else ["member-group"]
+
+        with (
+            patch(
+                "govoplan_files.backend.documentation.user_group_ids",
+                side_effect=groups_for_actor,
+            ),
+            patch(
+                "govoplan_files.backend.documentation._campaign_visibility",
+                return_value=None,
+            ) as campaign_visibility,
+            patch(
+                "govoplan_files.backend.documentation.visible_connector_profiles_for_actor",
+                return_value=[usable],
+            ) as visible,
+        ):
+            topics = {
+                topic.id: topic
+                for topic in documentation_topics(
+                    self.context(
+                        {
+                            "files:file:read",
+                            "files:file:upload",
+                            "files:file:admin",
+                        }
+                    )
+                )
+            }
+
+        self.assertIn("files.workflow.import-managed-snapshot", topics)
+        self.assertEqual(
+            ("member-group", "admin-visible-group"),
+            tuple(visible.call_args.kwargs["group_ids"]),
+        )
+        self.assertEqual(
+            ("member-group",),
+            tuple(campaign_visibility.call_args.kwargs["group_ids"]),
+        )
+
+    def test_connector_evaluation_errors_fail_closed_without_error_details(
+        self,
+    ) -> None:
+        with patch(
+            "govoplan_files.backend.documentation.visible_connector_profiles_for_actor",
+            side_effect=RuntimeError("private endpoint /root credential-id"),
+        ):
+            topics = {
+                topic.id: topic
+                for topic in documentation_topics(
+                    self.context({"files:file:read", "files:file:upload"})
+                )
+            }
+
+        self.assertNotIn("files.workflow.import-managed-snapshot", topics)
+        limitation = topics["files.connector-import-unavailable"]
+        self.assertIn("could not be safely evaluated", limitation.body)
+        self.assertNotIn("private endpoint", repr(limitation))
+        self.assertNotIn("credential-id", repr(limitation))
+
+    def test_runtime_provider_only_emits_user_documentation(self) -> None:
+        self.assertEqual(
+            (), documentation_topics(self.context(set(), documentation_type="admin"))
+        )
+
+
+if __name__ == "__main__":
+    unittest.main()

tests/test_integrity_reconciliation.py

@@ -0,0 +1,196 @@
+from __future__ import annotations
+
+import hashlib
+import tempfile
+import unittest
+from pathlib import Path
+
+from sqlalchemy import create_engine
+from sqlalchemy.orm import sessionmaker
+
+from govoplan_access.backend.db.models import Account, Group, User
+from govoplan_core.db.base import Base
+from govoplan_files.backend.db.models import (
+    FileBlob,
+    FileIntegrityFinding,
+    FileIntegrityScan,
+)
+from govoplan_files.backend.storage.backends import LocalFilesystemStorageBackend
+from govoplan_files.backend.storage.common import FileStorageError
+from govoplan_files.backend.storage.integrity import (
+    cleanup_orphan_finding,
+    create_integrity_scan,
+    read_verified_blob_bytes,
+    recheck_integrity_finding,
+    run_integrity_scan_batch,
+)
+
+
+TENANT_ID = "tenant-1"
+USER_ID = "user-1"
+
+
+class IntegrityReconciliationTests(unittest.TestCase):
+    def setUp(self) -> None:
+        self.temporary_directory = tempfile.TemporaryDirectory()
+        self.addCleanup(self.temporary_directory.cleanup)
+        self.backend = LocalFilesystemStorageBackend(
+            Path(self.temporary_directory.name)
+        )
+        self.engine = create_engine("sqlite:///:memory:", future=True)
+        Base.metadata.create_all(
+            bind=self.engine,
+            tables=[
+                Account.__table__,
+                User.__table__,
+                Group.__table__,
+                FileBlob.__table__,
+                FileIntegrityScan.__table__,
+                FileIntegrityFinding.__table__,
+            ],
+        )
+        self.session = sessionmaker(bind=self.engine, future=True)()
+        self.addCleanup(self._close)
+
+    def _close(self) -> None:
+        self.session.close()
+        self.engine.dispose()
+
+    def test_scan_is_bounded_resumable_and_reconciles_both_orphan_directions(
+        self,
+    ) -> None:
+        valid_data = b"valid"
+        restored_data = b"restore-me"
+        expected_corrupt_data = b"expected"
+        stored_corrupt_data = b"corrupt!"
+        valid = _blob("blob-1", "valid.bin", valid_data)
+        missing = _blob("blob-2", "missing.bin", restored_data)
+        corrupt = _blob("blob-3", "corrupt.bin", expected_corrupt_data)
+        self.session.add_all([valid, missing, corrupt])
+        self.session.commit()
+        self.backend.put_bytes(valid.storage_key, valid_data)
+        self.backend.put_bytes(corrupt.storage_key, stored_corrupt_data)
+        orphan_key = f"tenants/{TENANT_ID}/files/orphan.bin"
+        self.backend.put_bytes(orphan_key, b"orphan")
+
+        scan = create_integrity_scan(
+            self.session,
+            tenant_id=TENANT_ID,
+            user_id=USER_ID,
+            batch_size=1,
+            backend=self.backend,
+        )
+        self.session.commit()
+
+        invocations = 0
+        while scan.status != "completed":
+            run_integrity_scan_batch(
+                self.session,
+                scan,
+                backend=self.backend,
+            )
+            self.session.commit()
+            invocations += 1
+            scan = self.session.get(FileIntegrityScan, scan.id)
+            self.assertIsNotNone(scan)
+            self.session.expire_all()
+            if invocations > 12:
+                self.fail("Integrity scan did not complete")
+
+        self.assertGreater(invocations, 3)
+        self.assertEqual(3, scan.scanned_blob_count)
+        self.assertEqual(1, scan.verified_blob_count)
+        self.assertEqual(2, scan.quarantined_blob_count)
+        self.assertEqual(3, scan.scanned_object_count)
+        self.assertEqual(1, scan.orphan_object_count)
+        findings = (
+            self.session.query(FileIntegrityFinding)
+            .filter(FileIntegrityFinding.scan_id == scan.id)
+            .all()
+        )
+        self.assertEqual(
+            {"missing", "checksum_mismatch", "orphan_object"},
+            {finding.kind for finding in findings},
+        )
+
+        missing = self.session.get(FileBlob, missing.id)
+        corrupt = self.session.get(FileBlob, corrupt.id)
+        self.assertEqual("missing", missing.integrity_status)
+        self.assertEqual("checksum_mismatch", corrupt.integrity_status)
+        with self.assertRaisesRegex(FileStorageError, "quarantined"):
+            read_verified_blob_bytes(missing, backend=self.backend)
+
+        missing_finding = next(
+            finding for finding in findings if finding.kind == "missing"
+        )
+        self.backend.put_bytes(missing.storage_key, restored_data)
+        preview = recheck_integrity_finding(
+            self.session,
+            missing_finding,
+            user_id=USER_ID,
+            dry_run=True,
+            backend=self.backend,
+        )
+        self.assertTrue(preview.inspection.valid)
+        self.assertEqual("open", missing_finding.state)
+        repaired = recheck_integrity_finding(
+            self.session,
+            missing_finding,
+            user_id=USER_ID,
+            dry_run=False,
+            backend=self.backend,
+        )
+        self.session.commit()
+        self.assertTrue(repaired.changed)
+        self.assertEqual("resolved", missing_finding.state)
+        self.assertEqual(
+            restored_data,
+            read_verified_blob_bytes(missing, backend=self.backend),
+        )
+
+        orphan_finding = next(
+            finding for finding in findings if finding.kind == "orphan_object"
+        )
+        preview_cleanup = cleanup_orphan_finding(
+            self.session,
+            orphan_finding,
+            user_id=USER_ID,
+            dry_run=True,
+            backend=self.backend,
+        )
+        self.assertEqual("would_delete", preview_cleanup.action)
+        self.assertTrue(self.backend.exists(orphan_key))
+        cleanup = cleanup_orphan_finding(
+            self.session,
+            orphan_finding,
+            user_id=USER_ID,
+            dry_run=False,
+            backend=self.backend,
+        )
+        repeated = cleanup_orphan_finding(
+            self.session,
+            orphan_finding,
+            user_id=USER_ID,
+            dry_run=False,
+            backend=self.backend,
+        )
+        self.assertEqual("deleted", cleanup.action)
+        self.assertFalse(self.backend.exists(orphan_key))
+        self.assertEqual("already_deleted", repeated.action)
+        self.assertFalse(repeated.changed)
+
+
+def _blob(blob_id: str, filename: str, expected_data: bytes) -> FileBlob:
+    return FileBlob(
+        id=blob_id,
+        tenant_id=TENANT_ID,
+        storage_backend="local",
+        storage_key=f"tenants/{TENANT_ID}/files/{filename}",
+        checksum_sha256=hashlib.sha256(expected_data).hexdigest(),
+        size_bytes=len(expected_data),
+        ref_count=1,
+    )
+
+
+if __name__ == "__main__":
+    unittest.main()

tests/test_manifest_documentation.py

@@ -3,20 +3,213 @@ from __future__ import annotations
 import unittest
 
 
+STATIC_TOPIC_IDS = {
+    "files.workflow.organize-managed-files",
+    "files.workflow.find-and-download-files",
+    "files.workflow.share-managed-files",
+    "files.workflow.delete-managed-files",
+    "files.governed-connectors-and-provenance",
+    "files.reference.integrity-recovery-and-fail-closed-transports",
+    "files.reference.snapshot-provenance-and-capabilities",
+    "files.assurance.process-and-release-readiness",
+}
+RUNTIME_TOPIC_IDS = {
+    "files.workflow.upload-managed-files",
+    "files.workflow.upload-and-unpack-zip",
+    "files.workflow.import-managed-snapshot",
+    "files.connector-import-unavailable",
+}
+HANDBOOK_HREF = "govoplan-files/docs/FILES_HANDBOOK.md"
+
+
 class FilesManifestDocumentationTests(unittest.TestCase):
-    def test_connector_topic_covers_governance_pinning_and_provenance_perspectives(self) -> None:
+    @classmethod
+    def setUpClass(cls) -> None:
         from govoplan_files.backend.manifest import manifest
 
-        topic = next(item for item in manifest.documentation if item.id == "files.governed-connectors-and-provenance")
+        cls.manifest = manifest
+        cls.topics = {topic.id: topic for topic in manifest.documentation}
+
+    def topic(self, topic_id: str):
+        return self.topics[topic_id]
+
+    def test_static_topics_have_role_scope_module_and_link_contracts(self) -> None:
+        self.assertEqual(STATIC_TOPIC_IDS, set(self.topics))
+        self.assertEqual(
+            {"admin", "user"},
+            {
+                item
+                for topic in self.topics.values()
+                for item in topic.documentation_types
+            },
+        )
+
+        for topic in self.topics.values():
+            with self.subTest(topic=topic.id):
+                self.assertTrue(topic.audience)
+                self.assertTrue(topic.conditions)
+                self.assertTrue(
+                    any(
+                        "files" in condition.required_modules
+                        for condition in topic.conditions
+                    )
+                )
+                self.assertTrue(
+                    any(
+                        condition.any_scopes or condition.required_scopes
+                        for condition in topic.conditions
+                    )
+                )
+                self.assertIn("runtime", {link.kind for link in topic.links})
+                self.assertIn(
+                    HANDBOOK_HREF,
+                    {link.href for link in topic.links if link.kind == "repository"},
+                )
+
+        self.assertIn(
+            "documentation_topics",
+            {provider.__name__ for provider in self.manifest.documentation_providers},
+        )
+
+    def test_user_tasks_are_independently_authorized_and_contextual(self) -> None:
+        expected_scopes = {
+            "files.workflow.organize-managed-files": {
+                "files:file:read",
+                "files:file:organize",
+            },
+            "files.workflow.find-and-download-files": {
+                "files:file:read",
+                "files:file:download",
+            },
+            "files.workflow.share-managed-files": {
+                "files:file:read",
+                "files:file:share",
+            },
+            "files.workflow.delete-managed-files": {
+                "files:file:read",
+                "files:file:delete",
+            },
+        }
+        for topic_id, scopes in expected_scopes.items():
+            with self.subTest(topic=topic_id):
+                topic = self.topic(topic_id)
+                self.assertEqual(("user",), topic.documentation_types)
+                self.assertEqual("workflow", topic.metadata["kind"])
+                self.assertEqual(scopes, set(topic.conditions[0].required_scopes))
+                self.assertEqual(["files.list"], topic.metadata["help_contexts"])
+                for key in ("prerequisites", "steps", "outcome", "verification"):
+                    self.assertTrue(topic.metadata[key])
+
+    def test_share_and_delete_tasks_state_current_boundaries(self) -> None:
+        share = self.topic("files.workflow.share-managed-files")
+        self.assertEqual("available", share.layer)
+        self.assertIn("Expired and revoked grants stop authorizing", share.body)
+        self.assertIn("revocation is idempotent", share.body)
+        self.assertIn(
+            "/api/v1/files/{file_id}/shares", {link.href for link in share.links}
+        )
+
+        delete = self.topic("files.workflow.delete-managed-files")
+        self.assertIn("Soft-delete", delete.summary)
+        self.assertIn("no self-service restore or hard-purge", delete.body)
+        self.assertTrue(
+            any("not a hard purge" in item for item in delete.metadata["limitations"])
+        )
+
+    def test_admin_topic_covers_policy_redaction_and_atomic_credential_deletion(
+        self,
+    ) -> None:
+        topic = self.topic("files.governed-connectors-and-provenance")
+
+        self.assertEqual(("admin",), topic.documentation_types)
+        self.assertEqual("reference", topic.metadata["kind"])
+        self.assertEqual("File connections", topic.metadata["screen"])
+        self.assertTrue(topic.metadata["section"])
+        self.assertIn("deny rules win", topic.body)
+        self.assertIn("redact secret values", topic.body)
+        self.assertIn("same transaction", topic.body)
+        self.assertTrue(
+            any(
+                "non-owned external references" in item
+                for item in topic.metadata["security_invariants"]
+            )
+        )
+        self.assertIn(
+            "/api/v1/files/connectors/policies/tenant",
+            {link.href for link in topic.links},
+        )
+        self.assertIn(
+            "/api/v1/files/connectors/credentials", {link.href for link in topic.links}
+        )
+
+    def test_operator_topic_covers_recovery_and_fail_closed_s3_smb(self) -> None:
+        topic = self.topic(
+            "files.reference.integrity-recovery-and-fail-closed-transports"
+        )
+
+        self.assertEqual(("admin",), topic.documentation_types)
+        self.assertEqual("reference", topic.metadata["kind"])
+        self.assertIn("S3", topic.body)
+        self.assertIn("SMB", topic.body)
+        self.assertIn("fail closed", topic.body)
+        self.assertIn("DFS referrals", topic.body)
+        self.assertIn("does not remove backend blob objects", topic.body)
+        self.assertIn("bounded resumable integrity scan", topic.body)
+        self.assertIn("quarantined", topic.body)
+        self.assertIn("MASTER_KEY_B64", topic.metadata["recovery_unit"])
+        self.assertTrue(topic.metadata["verification"])
+        self.assertIn(
+            "/api/v1/files/integrity/scans",
+            {link.href for link in topic.links},
+        )
+        self.assertIn(
+            "GOVOPLAN_CONNECTOR_ALLOW_PRIVATE_NETWORKS", topic.configuration_keys
+        )
+
+    def test_integrator_topic_exposes_capability_and_provenance_boundary(self) -> None:
+        topic = self.topic("files.reference.snapshot-provenance-and-capabilities")
 
         self.assertEqual(("admin", "user"), topic.documentation_types)
-        self.assertEqual({"user", "admin", "operator"}, set(topic.metadata["perspectives"]))
+        self.assertEqual("reference", topic.metadata["kind"])
-        self.assertIn("fails closed", topic.body)
+        self.assertEqual(
-        self.assertIn("DFS referrals", topic.body)
+            ["files.access@0.1.6", "files.campaign_attachments@0.1.6"],
-        self.assertIn("immediately scrubs", topic.body)
+            topic.metadata["provided_interfaces"],
-        self.assertTrue(any("non-owned external references" in item for item in topic.metadata["security_invariants"]))
+        )
         self.assertIn("revision", topic.metadata["provenance_fields"])
-        self.assertIn("/api/v1/files/connectors/profiles", {link.href for link in topic.links})
+        self.assertIn("exact asset, version, blob, checksum", topic.body)
+        self.assertIn("collaboration", topic.body)
+
+    def test_process_and_release_assurance_exposes_gates_evidence_and_limits(
+        self,
+    ) -> None:
+        topic = self.topic("files.assurance.process-and-release-readiness")
+
+        self.assertEqual(("admin", "user"), topic.documentation_types)
+        self.assertEqual("workflow", topic.metadata["kind"])
+        self.assertEqual(["files.list"], topic.metadata["help_contexts"])
+        self.assertIn("process_owner", topic.audience)
+        self.assertIn("release_manager", topic.audience)
+        self.assertIn("versions align", topic.body)
+        self.assertIn("Share grant, change, expiry, and revocation", topic.body)
+        self.assertIn("no enforced retention or legal hold", topic.body)
+        for key in ("prerequisites", "steps", "outcome", "verification"):
+            self.assertTrue(topic.metadata[key])
+        self.assertTrue(
+            any("meta-repository security" in step for step in topic.metadata["steps"])
+        )
+        self.assertTrue(any("fails closed" in step for step in topic.metadata["steps"]))
+        self.assertTrue(any("SHA-256" in step for step in topic.metadata["steps"]))
+
+    def test_internal_related_topic_ids_resolve(self) -> None:
+        known_ids = STATIC_TOPIC_IDS | RUNTIME_TOPIC_IDS
+        for topic in self.topics.values():
+            for related_id in topic.metadata.get("related_topic_ids", []):
+                if related_id.startswith("files."):
+                    self.assertIn(
+                        related_id,
+                        known_ids,
+                        f"{topic.id} refers to missing topic {related_id}",
+                    )
 
 
 if __name__ == "__main__":

tests/test_router_contract.py

@@ -1,11 +1,59 @@
 from __future__ import annotations
 
 import unittest
+from collections import Counter
+from inspect import signature
 
 from govoplan_files.backend.router import router
+from govoplan_files.backend.routes.assets import router as assets_router
+from govoplan_files.backend.routes.connector_io import router as connector_io_router
+from govoplan_files.backend.routes.connector_profiles import router as connector_profiles_router
+from govoplan_files.backend.routes.connector_settings import router as connector_settings_router
+from govoplan_files.backend.routes.folders import router as folders_router
+from govoplan_files.backend.routes.integrity import router as integrity_router
+from govoplan_files.backend.routes.listing import router as listing_router
+from govoplan_files.backend.routes.shares import router as shares_router
+from govoplan_files.backend.routes.spaces import router as spaces_router
+from govoplan_files.backend.routes.transfers import router as transfers_router
+from govoplan_files.backend.routes.uploads import router as uploads_router
 
 
 class FilesRouterContractTests(unittest.TestCase):
+    @staticmethod
+    def _operation_keys(candidate_router) -> list[tuple[str, str]]:
+        return [
+            (method, route.path)
+            for route in candidate_router.routes
+            for method in sorted(route.methods or ())
+        ]
+
+    def test_composed_router_contains_every_workflow_operation_once(self) -> None:
+        workflow_routers = (
+            spaces_router,
+            folders_router,
+            integrity_router,
+            listing_router,
+            uploads_router,
+            connector_settings_router,
+            connector_io_router,
+            connector_profiles_router,
+            assets_router,
+            shares_router,
+            transfers_router,
+        )
+        expected = [
+            operation
+            for workflow_router in workflow_routers
+            for operation in self._operation_keys(workflow_router)
+        ]
+        actual = self._operation_keys(router)
+
+        self.assertEqual(expected, actual)
+        self.assertEqual(50, len(actual))
+        self.assertFalse(
+            [operation for operation, count in Counter(actual).items() if count > 1]
+        )
+
     def test_connector_routes_keep_existing_api_paths(self) -> None:
         routes = {(tuple(sorted(route.methods or ())), route.path) for route in router.routes}
 
@@ -31,6 +79,26 @@ class FilesRouterContractTests(unittest.TestCase):
         self.assertIn((("POST",), "/files/bulk-rename"), routes)
         self.assertIn((("POST",), "/files/transfer"), routes)
 
+    def test_share_lifecycle_routes_are_exposed(self) -> None:
+        routes = {(tuple(sorted(route.methods or ())), route.path) for route in router.routes}
+
+        self.assertIn((("GET",), "/files/{file_id}/shares"), routes)
+        self.assertIn((("POST",), "/files/{file_id}/shares"), routes)
+        self.assertIn((("DELETE",), "/files/{file_id}/shares/{share_id}"), routes)
+        self.assertIn((("GET",), "/files/{file_id}/share-target-options"), routes)
+
+    def test_file_listing_exposes_structured_property_filters(self) -> None:
+        route = next(
+            route
+            for route in listing_router.routes
+            if route.path == "/files" and "GET" in (route.methods or ())
+        )
+        parameters = signature(route.endpoint).parameters
+
+        self.assertIn("campaign_usage", parameters)
+        self.assertIn("audit_relevant", parameters)
+        self.assertIn("total", route.response_model.model_fields)
+
 
 if __name__ == "__main__":
     unittest.main()

tests/test_share_lifecycle.py

@@ -0,0 +1,219 @@
+from __future__ import annotations
+
+import unittest
+from datetime import timedelta
+from unittest.mock import patch
+
+from sqlalchemy import create_engine
+from sqlalchemy.orm import sessionmaker
+
+from govoplan_access.backend.db.models import Account, Group, User
+from govoplan_core.core.change_sequence import ChangeSequenceEntry
+from govoplan_core.db.base import Base
+from govoplan_files.backend.db.models import FileAsset, FileShare
+from govoplan_files.backend.storage.common import FileStorageError, utcnow
+from govoplan_files.backend.storage.files import (
+    get_asset_for_user,
+    list_file_shares,
+    revoke_file_share,
+    share_file,
+)
+
+
+TENANT_ID = "tenant-1"
+OWNER_ID = "owner-1"
+RECIPIENT_ID = "recipient-1"
+GROUP_ID = "group-1"
+
+
+class FileShareLifecycleTests(unittest.TestCase):
+    def setUp(self) -> None:
+        self.engine = create_engine("sqlite:///:memory:", future=True)
+        Base.metadata.create_all(
+            bind=self.engine,
+            tables=[
+                Account.__table__,
+                User.__table__,
+                Group.__table__,
+                ChangeSequenceEntry.__table__,
+                FileAsset.__table__,
+                FileShare.__table__,
+            ],
+        )
+        self.session = sessionmaker(bind=self.engine, future=True)()
+        self.asset = FileAsset(
+            id="file-1",
+            tenant_id=TENANT_ID,
+            owner_type="user",
+            owner_user_id=OWNER_ID,
+            display_path="shared.pdf",
+            filename="shared.pdf",
+        )
+        self.session.add(self.asset)
+        self.session.commit()
+
+    def tearDown(self) -> None:
+        self.session.close()
+        self.engine.dispose()
+
+    @patch(
+        "govoplan_files.backend.storage.files.user_group_ids",
+        return_value=[],
+    )
+    def test_expired_share_stops_access_immediately(self, _groups) -> None:
+        self.session.add(
+            FileShare(
+                id="expired-share",
+                tenant_id=TENANT_ID,
+                file_asset_id=self.asset.id,
+                target_type="user",
+                target_id=RECIPIENT_ID,
+                permission="read",
+                expires_at=utcnow() - timedelta(seconds=1),
+            )
+        )
+        self.session.commit()
+
+        with self.assertRaisesRegex(FileStorageError, "No access"):
+            get_asset_for_user(
+                self.session,
+                tenant_id=TENANT_ID,
+                user_id=RECIPIENT_ID,
+                asset_id=self.asset.id,
+            )
+        self.assertEqual(
+            [],
+            list_file_shares(
+                self.session,
+                tenant_id=TENANT_ID,
+                asset_id=self.asset.id,
+            ),
+        )
+
+    @patch(
+        "govoplan_files.backend.storage.files.user_group_ids",
+        return_value=[GROUP_ID],
+    )
+    def test_independent_active_grant_survives_other_expiry(self, _groups) -> None:
+        self.session.add_all(
+            [
+                FileShare(
+                    id="expired-user-share",
+                    tenant_id=TENANT_ID,
+                    file_asset_id=self.asset.id,
+                    target_type="user",
+                    target_id=RECIPIENT_ID,
+                    permission="read",
+                    expires_at=utcnow() - timedelta(seconds=1),
+                ),
+                FileShare(
+                    id="active-group-share",
+                    tenant_id=TENANT_ID,
+                    file_asset_id=self.asset.id,
+                    target_type="group",
+                    target_id=GROUP_ID,
+                    permission="read",
+                    expires_at=utcnow() + timedelta(hours=1),
+                ),
+            ]
+        )
+        self.session.commit()
+
+        result = get_asset_for_user(
+            self.session,
+            tenant_id=TENANT_ID,
+            user_id=RECIPIENT_ID,
+            asset_id=self.asset.id,
+        )
+
+        self.assertEqual(self.asset.id, result.id)
+        self.assertEqual(
+            ["active-group-share"],
+            [
+                share.id
+                for share in list_file_shares(
+                    self.session,
+                    tenant_id=TENANT_ID,
+                    asset_id=self.asset.id,
+                )
+            ],
+        )
+
+    @patch(
+        "govoplan_files.backend.storage.files.ensure_share_target_exists",
+        return_value=None,
+    )
+    def test_revoke_is_idempotent_and_future_expiry_is_persisted(
+        self, _target_exists
+    ) -> None:
+        expiry = utcnow() + timedelta(days=1)
+        share = share_file(
+            self.session,
+            tenant_id=TENANT_ID,
+            asset=self.asset,
+            target_type="user",
+            target_id=RECIPIENT_ID,
+            permission="read",
+            user_id=OWNER_ID,
+            expires_at=expiry,
+        )
+        self.session.commit()
+
+        revoked, first_changed = revoke_file_share(
+            self.session,
+            tenant_id=TENANT_ID,
+            asset_id=self.asset.id,
+            share_id=share.id,
+            user_id=OWNER_ID,
+        )
+        self.session.commit()
+        repeated, second_changed = revoke_file_share(
+            self.session,
+            tenant_id=TENANT_ID,
+            asset_id=self.asset.id,
+            share_id=share.id,
+            user_id=OWNER_ID,
+        )
+
+        self.assertTrue(first_changed)
+        self.assertFalse(second_changed)
+        self.assertEqual(OWNER_ID, revoked.revoked_by_user_id)
+        self.assertEqual(revoked.revoked_at, repeated.revoked_at)
+        self.assertEqual([], list_file_shares(
+            self.session,
+            tenant_id=TENANT_ID,
+            asset_id=self.asset.id,
+        ))
+        self.assertEqual(
+            [share.id],
+            [
+                item.id
+                for item in list_file_shares(
+                    self.session,
+                    tenant_id=TENANT_ID,
+                    asset_id=self.asset.id,
+                    include_inactive=True,
+                )
+            ],
+        )
+
+    @patch(
+        "govoplan_files.backend.storage.files.ensure_share_target_exists",
+        return_value=None,
+    )
+    def test_past_expiry_is_rejected(self, _target_exists) -> None:
+        with self.assertRaisesRegex(FileStorageError, "future"):
+            share_file(
+                self.session,
+                tenant_id=TENANT_ID,
+                asset=self.asset,
+                target_type="user",
+                target_id=RECIPIENT_ID,
+                permission="read",
+                user_id=OWNER_ID,
+                expires_at=utcnow() - timedelta(seconds=1),
+            )
+
+
+if __name__ == "__main__":
+    unittest.main()

tests/test_tenant_summary_batch.py

@@ -0,0 +1,108 @@
+from __future__ import annotations
+
+import unittest
+
+from sqlalchemy import create_engine, event
+from sqlalchemy.orm import Session
+
+from govoplan_access.backend.db.models import Account, Group, User
+from govoplan_core.core.change_sequence import ChangeSequenceEntry
+from govoplan_core.db.base import Base
+from govoplan_files.backend.db.models import (
+    FileAsset,
+    FileConnectorCredential,
+    FileConnectorPolicy,
+    FileConnectorProfile,
+    FileConnectorSpace,
+)
+from govoplan_files.backend.manifest import _tenant_summary_batch
+
+
+class FilesTenantSummaryBatchTests(unittest.TestCase):
+    def test_batch_summary_uses_one_grouped_query_per_owned_table(self) -> None:
+        engine = create_engine("sqlite+pysqlite:///:memory:")
+        Base.metadata.create_all(
+            engine,
+            tables=[
+                Account.__table__,
+                User.__table__,
+                Group.__table__,
+                FileAsset.__table__,
+                FileConnectorCredential.__table__,
+                FileConnectorPolicy.__table__,
+                FileConnectorProfile.__table__,
+                FileConnectorSpace.__table__,
+                ChangeSequenceEntry.__table__,
+            ],
+        )
+        try:
+            with Session(engine) as session:
+                session.add_all(
+                    [
+                        FileAsset(
+                            id="file-1",
+                            tenant_id="tenant-1",
+                            owner_type="tenant",
+                            display_path="/one.txt",
+                            filename="one.txt",
+                        ),
+                        FileConnectorCredential(
+                            id="credential-1",
+                            tenant_id="tenant-1",
+                            label="Credential",
+                        ),
+                        FileConnectorPolicy(
+                            id="policy-1",
+                            tenant_id="tenant-1",
+                            scope_type="tenant",
+                        ),
+                        FileConnectorProfile(
+                            id="profile-1",
+                            tenant_id="tenant-1",
+                            label="Profile",
+                            provider="webdav",
+                        ),
+                        FileConnectorSpace(
+                            id="space-1",
+                            tenant_id="tenant-1",
+                            owner_type="tenant",
+                            label="Space",
+                            connector_profile_id="profile-1",
+                            provider="webdav",
+                        ),
+                    ]
+                )
+                session.commit()
+                query_count = 0
+
+                def count_query(*_args: object) -> None:
+                    nonlocal query_count
+                    query_count += 1
+
+                event.listen(engine, "before_cursor_execute", count_query)
+                try:
+                    counts = _tenant_summary_batch(
+                        session,
+                        ["tenant-1", "tenant-empty"],
+                    )
+                finally:
+                    event.remove(engine, "before_cursor_execute", count_query)
+
+            self.assertEqual(5, query_count)
+            self.assertEqual(
+                {
+                    "files": 1,
+                    "connector_credentials": 1,
+                    "connector_policies": 1,
+                    "connector_profiles": 1,
+                    "connector_spaces": 1,
+                },
+                counts["tenant-1"],
+            )
+            self.assertEqual(0, counts["tenant-empty"]["files"])
+        finally:
+            engine.dispose()
+
+
+if __name__ == "__main__":
+    unittest.main()

webui/package.json

@@ -14,7 +14,8 @@
     "./styles/file-manager.css": "./src/styles/file-manager.css"
   },
   "scripts": {
-    "test:file-drop-target": "node scripts/test-file-drop-target-structure.mjs"
+    "test:file-drop-target": "node scripts/test-file-drop-target-structure.mjs",
+    "test:file-property-filters": "node scripts/test-file-property-filters-structure.mjs"
   },
   "peerDependencies": {
     "@vitejs/plugin-react": "^4.3.4",
@@ -22,7 +23,7 @@
     "typescript": "^5.7.2",
     "react": "^19.0.0",
     "react-dom": "^19.0.0",
-    "react-router-dom": "^7.1.1",
+    "react-router-dom": ">=7.18.2 <8",
     "lucide-react": "^1.23.0",
     "@govoplan/core-webui": "^0.1.9"
   },

webui/scripts/test-file-property-filters-structure.mjs

@@ -0,0 +1,36 @@
+import { readFileSync } from "node:fs";
+
+const page = readFileSync(new URL("../src/features/files/FilesPage.tsx", import.meta.url), "utf8").replace(/\s+/g, " ");
+const api = readFileSync(new URL("../src/api/files.ts", import.meta.url), "utf8").replace(/\s+/g, " ");
+
+function assertIncludes(source, fragment, message) {
+  if (!source.includes(fragment.replace(/\s+/g, " "))) throw new Error(message);
+}
+
+assertIncludes(
+  api,
+  "campaign_usage?: FileCampaignUsageFilter; audit_relevant?: boolean;",
+  "the Files API must expose structured campaign and audit filters"
+);
+assertIncludes(
+  api,
+  "do { const response = await listFiles",
+  "property filtering must traverse every server result page"
+);
+assertIncludes(
+  page,
+  "if (propertyFiltersActive && propertyFilterResults) return propertyFilterResults;",
+  "server-filtered rows must replace, not narrow, the currently loaded explorer window"
+);
+assertIncludes(
+  page,
+  '<option value="unlinked">Not linked or used</option>',
+  "the high-priority unlinked campaign-file filter must remain available"
+);
+assertIncludes(
+  page,
+  "setPropertyFilterTotal(response.total);",
+  "the UI must retain the exact server-side filtered count"
+);
+
+console.log("Files property filters cover the complete server result window.");

webui/src/api/files.ts

@@ -1,4 +1,15 @@
-import { ApiError, apiFetch, apiUrl, authHeaders, csrfToken, type ApiSettings, type DeltaDeletedItem, type FilesManagedFileLinkTarget } from "@govoplan/core-webui";
+import {
+  ApiError,
+  apiFetch,
+  apiReferenceOptionProvider,
+  apiUrl,
+  authHeaders,
+  csrfToken,
+  type ApiSettings,
+  type DeltaDeletedItem,
+  type FilesManagedFileLinkTarget,
+  type ReferenceOptionProvider
+} from "@govoplan/core-webui";
 export { fetchResourceAccessExplanation } from "@govoplan/core-webui";
 export type {
   AccessDecisionProvenanceItem,
@@ -24,11 +35,16 @@ export type FileSpace = {
 
 export type FileShare = {
   id: string;
+  file_asset_id: string;
   target_type: string;
   target_id: string;
   permission: string;
+  created_by_user_id?: string | null;
   created_at: string;
+  expires_at?: string | null;
   revoked_at?: string | null;
+  revoked_by_user_id?: string | null;
+  active: boolean;
 };
 
 export type FileSourceProvenance = {
@@ -297,7 +313,8 @@ export type ManagedFile = {
   shares?: FileShare[];
 };
 
-export type FileListResponse = {files: ManagedFile[];cursor?: string | null;next_cursor?: string | null;watermark?: string | null;};
+export type FileCampaignUsageFilter = "linked" | "unlinked";
+export type FileListResponse = {files: ManagedFile[];total: number;cursor?: string | null;next_cursor?: string | null;watermark?: string | null;};
 export type FileDeltaDeletedItem = {id: string;resource_type?: string | null;revision?: string | null;deleted_at?: string | null;};
 export type FileDeltaResponse = {
   files: ManagedFile[];
@@ -383,15 +400,43 @@ payload: {owner_type: "user" | "group";owner_id: string;path: string;recursive?:
   return apiFetch<FolderDeleteResponse>(settings, "/api/v1/files/folders/delete", { method: "POST", body: JSON.stringify({ recursive: true, ...payload }) });
 }
 
-export function listFiles(settings: ApiSettings, params: {owner_type?: string;owner_id?: string;campaign_id?: string;path_prefix?: string;page_size?: number;cursor?: string | null;} = {}): Promise<FileListResponse> {
+export function listFiles(settings: ApiSettings, params: {owner_type?: string;owner_id?: string;campaign_id?: string;path_prefix?: string;campaign_usage?: FileCampaignUsageFilter;audit_relevant?: boolean;page_size?: number;cursor?: string | null;} = {}): Promise<FileListResponse> {
   const search = new URLSearchParams();
   for (const [key, value] of Object.entries(params)) {
-    if (value) search.set(key, String(value));
+    if (value !== undefined && value !== null && value !== "") search.set(key, String(value));
   }
   const suffix = search.toString() ? `?${search.toString()}` : "";
   return apiFetch<FileListResponse>(settings, `/api/v1/files${suffix}`);
 }
 
+export async function listFilesByProperties(
+settings: ApiSettings,
+params: {
+  owner_type: "user" | "group";
+  owner_id: string;
+  path_prefix?: string;
+  campaign_usage?: FileCampaignUsageFilter;
+  audit_relevant?: boolean;
+  page_size?: number;
+})
+: Promise<{files: ManagedFile[];total: number;}> {
+  const pageSize = params.page_size ?? DEFAULT_MANAGED_FILE_WINDOW_SIZE;
+  let cursor: string | null | undefined = null;
+  let total = 0;
+  let files: ManagedFile[] = [];
+  do {
+    const response = await listFiles(settings, {
+      ...params,
+      page_size: pageSize,
+      cursor
+    });
+    files = files.concat(response.files);
+    total = response.total;
+    cursor = response.next_cursor;
+  } while (cursor);
+  return { files, total };
+}
+
 export function listFilesDelta(
 settings: ApiSettings,
 params: {owner_type?: string;owner_id?: string;campaign_id?: string;path_prefix?: string;since?: string;limit?: number;} = {})
@@ -564,6 +609,12 @@ export function bulkDeleteFiles(settings: ApiSettings, fileIds: string[]): Promi
 }
 
 export type FileBulkShareResponse = {shares: FileShare[];shared_count: number;};
+export type FileSharePayload = {
+  target_type: "user" | "group" | "tenant" | "campaign";
+  target_id: string;
+  permission: "read" | "write" | "manage";
+  expires_at?: string | null;
+};
 
 export function virtualFolderResourceId(options: {tenantId: string;ownerType: "user" | "group";ownerId: string;path: string;}): string {
   return `virtual-folder:v1:${options.tenantId}:${options.ownerType}:${options.ownerId}:${base64Url(options.path.replace(/\\/g, "/").replace(/^\/+|\/+$/g, ""))}`;
@@ -583,6 +634,54 @@ export function shareFilesWithTarget(settings: ApiSettings, fileIds: string[], t
   });
 }
 
+export function listFileShares(
+  settings: ApiSettings,
+  fileId: string,
+  options: { includeInactive?: boolean } = {}
+): Promise<{ shares: FileShare[] }> {
+  const suffix = options.includeInactive ? "?include_inactive=true" : "";
+  return apiFetch<{ shares: FileShare[] }>(
+    settings,
+    `/api/v1/files/${encodeURIComponent(fileId)}/shares${suffix}`
+  );
+}
+
+export function createFileShare(
+  settings: ApiSettings,
+  fileId: string,
+  payload: FileSharePayload
+): Promise<FileShare> {
+  return apiFetch<FileShare>(
+    settings,
+    `/api/v1/files/${encodeURIComponent(fileId)}/shares`,
+    { method: "POST", body: JSON.stringify(payload) }
+  );
+}
+
+export function revokeFileShare(
+  settings: ApiSettings,
+  fileId: string,
+  shareId: string
+): Promise<FileShare> {
+  return apiFetch<FileShare>(
+    settings,
+    `/api/v1/files/${encodeURIComponent(fileId)}/shares/${encodeURIComponent(shareId)}`,
+    { method: "DELETE" }
+  );
+}
+
+export function fileShareTargetProvider(
+  settings: ApiSettings,
+  fileId: string,
+  targetType: "user" | "group"
+): ReferenceOptionProvider {
+  return apiReferenceOptionProvider(
+    settings,
+    `/api/v1/files/${encodeURIComponent(fileId)}/share-target-options`,
+    { target_type: targetType }
+  );
+}
+
 export function evaluateFileConnectorPolicy(
 settings: ApiSettings,
 payload: {source_provenance: FileSourceProvenance;operation?: string;policy_sources?: FileConnectorPolicySource[];})

webui/src/features/files/FileConnectorSettingsPanel.tsx

@@ -14,16 +14,21 @@ import {
   AdvancedOptionsPanel,
   LoadingFrame,
   mergeDeltaRows,
+  ReferenceMultiSelect,
   SegmentedControl,
+  staticReferenceOptionProvider,
   StatusBadge,
   TableActionGroup,
   ToggleSwitch,
   useDeltaWatermarks,
+  usePlatformLanguage,
   useUnsavedDraftGuard,
+  wildcardReferenceOption,
   type ApiSettings,
   type ConnectionTreeColumn,
   type FileConnectorScope,
   type FileConnectorTargetOption,
+  type ReferenceOption,
   i18nMessage } from
 "@govoplan/core-webui";
 import {
@@ -186,6 +191,7 @@ export default function FileConnectorSettingsPanel({
   const [credentialLoginResult, setCredentialLoginResult] = useState<{ok: boolean;message: string;} | null>(null);
   const [message, setMessage] = useState("");
   const [error, setError] = useState("");
+  const { translateText } = usePlatformLanguage();
   const { getDeltaWatermark, setDeltaWatermark, resetDeltaWatermark } = useDeltaWatermarks();
 
   const requiresTarget = scopeType === "user" || scopeType === "group";
@@ -198,6 +204,10 @@ export default function FileConnectorSettingsPanel({
   const profileDirty = Boolean(draft) && connectorProfileDraftKey(draft) !== savedDraftKey;
   const credentialDirty = Boolean(credentialDraft) && connectorCredentialDraftKey(credentialDraft) !== savedCredentialDraftKey;
   const policyDirty = scopeReady && centralPolicyDraftKey(policyDraft) !== savedPolicyDraftKey;
+  const policyConflicts = useMemo(
+    () => policyReferenceConflicts(policyDraft),
+    [policyDraft]
+  );
 
   useUnsavedDraftGuard({
     dirty: profileDirty || credentialDirty || policyDirty,
@@ -225,6 +235,79 @@ export default function FileConnectorSettingsPanel({
     () => credentials.filter((credential) => connectorBelongsToEditableScope(credential, scopeType, activeScopeId)),
     [activeScopeId, credentials, scopeType]
   );
+  const selectableCredentials = useMemo(
+    () => credentials.filter((credential) =>
+      connectorBelongsToEditableScope(credential, scopeType, activeScopeId) ||
+      credential.source_kind === "credential_envelope" &&
+      reusableCredentialAvailableAtScope(credential, scopeType, activeScopeId)
+    ),
+    [activeScopeId, credentials, scopeType]
+  );
+  const connectorReferenceOptions = useMemo<ReferenceOption[]>(
+    () => profiles.map((profile) => ({
+      value: profile.id,
+      label: profile.label || profile.id,
+      description: [
+        profile.provider,
+        profile.source_path,
+        profile.enabled ? null : "Inactive"
+      ].filter(Boolean).join(" · "),
+      kind: "file_connection",
+      availability: profile.enabled ? "available" : "inactive",
+      disabled: !profile.enabled,
+      sourceModule: "files",
+      provenance: {
+        scopeType: profile.scope_type,
+        scopeId: profile.scope_id,
+        sourcePath: profile.source_path
+      }
+    })),
+    [profiles]
+  );
+  const credentialReferenceOptions = useMemo<ReferenceOption[]>(
+    () => credentials.map((credential) => ({
+      value: credential.id,
+      label: credential.label || credential.id,
+      description: [
+        credential.provider || "shared",
+        credential.source_path,
+        credential.enabled ? null : "Inactive"
+      ].filter(Boolean).join(" · "),
+      kind: "file_credential",
+      availability: credential.enabled ? "available" : "inactive",
+      disabled: !credential.enabled,
+      sourceModule: credential.source_kind === "credential_envelope" ? "core" : "files",
+      provenance: {
+        scopeType: credential.scope_type,
+        scopeId: credential.scope_id,
+        sourcePath: credential.source_path,
+        sourceKind: credential.source_kind
+      }
+    })),
+    [credentials]
+  );
+  const providerReferenceOptions = useMemo<ReferenceOption[]>(
+    () => PROVIDERS.map((provider) => ({
+      value: provider.id,
+      label: translateText(provider.label),
+      description: provider.id,
+      kind: "file_provider",
+      sourceModule: "files"
+    })),
+    [translateText]
+  );
+  const connectorReferenceProvider = useMemo(
+    () => staticReferenceOptionProvider(connectorReferenceOptions),
+    [connectorReferenceOptions]
+  );
+  const credentialReferenceProvider = useMemo(
+    () => staticReferenceOptionProvider(credentialReferenceOptions),
+    [credentialReferenceOptions]
+  );
+  const providerReferenceProvider = useMemo(
+    () => staticReferenceOptionProvider(providerReferenceOptions),
+    [providerReferenceOptions]
+  );
 
   useEffect(() => {
     resetDeltaWatermark(deltaKey);
@@ -424,7 +507,7 @@ export default function FileConnectorSettingsPanel({
       endpoint_url: cleanOrNull(draft.endpointUrl),
       base_path: cleanOrNull(draft.basePath),
       enabled: draft.enabled,
-      credential_profile_id: cleanOrNull(credentialProfileIdForDraft(draft, scopedCredentials)),
+      credential_profile_id: cleanOrNull(credentialProfileIdForDraft(draft, selectableCredentials)),
       credential_mode: draft.credentialMode,
       capabilities,
       policy: policyFromDraft(draft),
@@ -694,7 +777,7 @@ export default function FileConnectorSettingsPanel({
   const panelTitle = title ?? i18nMessage("i18n:govoplan-files.value_file_connections", { value0: scopeLabel(scopeType) });
   const selectedCredentialIds = new Set(scopedProfiles.map((profile) => profile.credential_profile_id).filter((value): value is string => Boolean(value)));
   const firstCompatibleProfileByCredential = new Map<string, string>();
-  for (const credential of scopedCredentials) {
+  for (const credential of selectableCredentials) {
     const selectedProfile = scopedProfiles.find((profile) => profile.credential_profile_id === credential.id);
     const fallbackProfile = selectedProfile ?? scopedProfiles.find((profile) => !selectedCredentialIds.has(credential.id) && credentialMatchesProfile(credential, profile));
     if (fallbackProfile) firstCompatibleProfileByCredential.set(credential.id, fallbackProfile.id);
@@ -717,8 +800,8 @@ export default function FileConnectorSettingsPanel({
   const credentialTestUnsupported = Boolean(credentialTestProfile && credentialTestProfile.provider !== "webdav" && credentialTestProfile.provider !== "nextcloud");
   const credentialTestDisabled = !credentialDraft || saving || testingCredentialLogin || !credentialTestProfile || credentialTestUnsupported;
   const credentialTestTooltip = credentialTestHelpText(credentialTestProfile, credentialTestUnsupported);
-  const profileCredentialOptions = draft ? credentialOptionsForProfileDraft(scopedCredentials, draft) : [];
+  const profileCredentialOptions = draft ? credentialOptionsForProfileDraft(selectableCredentials, draft) : [];
-  const profileCredentialSelectValue = draft ? credentialProfileIdForDraft(draft, scopedCredentials) : "";
+  const profileCredentialSelectValue = draft ? credentialProfileIdForDraft(draft, selectableCredentials) : "";
   const connectorColumns: ConnectionTreeColumn<ConnectorTreeRow>[] = [
   {
     id: "connection",
@@ -755,7 +838,7 @@ export default function FileConnectorSettingsPanel({
 
   function connectorChildren(row: ConnectorTreeRow): ConnectorTreeRow[] {
     if (row.kind !== "profile") return [];
-    return scopedCredentials.
+    return selectableCredentials.
     filter((credential) => firstCompatibleProfileByCredential.get(credential.id) === row.profile.id).
     map((credential) => ({ kind: "credential" as const, id: `credential:${row.profile.id}:${credential.id}`, credential, profile: row.profile }));
   }
@@ -857,22 +940,70 @@ export default function FileConnectorSettingsPanel({
           <>
             <div className="form-grid two">
               <FormField label="i18n:govoplan-files.allowed_connection_ids.0df854c8">
-                <textarea value={policyDraft.allowedConnectors} disabled={saving || !canWrite} onChange={(event) => patchPolicyDraft({ allowedConnectors: event.target.value })} rows={3} placeholder={"tenant-webdav\nseafile-*"} />
+                <ReferenceMultiSelect
+                  values={lines(policyDraft.allowedConnectors)}
+                  onChange={(values) => patchPolicyDraft({ allowedConnectors: values.join("\n") })}
+                  provider={connectorReferenceProvider}
+                  createCustomOption={(value) => wildcardReferenceOption(value)}
+                  aria-label="Allowed file connections"
+                  placeholder="Add a connection or wildcard pattern"
+                  disabled={saving || !canWrite}
+                />
               </FormField>
               <FormField label="i18n:govoplan-files.denied_connection_ids.a95218b4">
-                <textarea value={policyDraft.deniedConnectors} disabled={saving || !canWrite} onChange={(event) => patchPolicyDraft({ deniedConnectors: event.target.value })} rows={3} placeholder={"legacy-*\nblocked-smb"} />
+                <ReferenceMultiSelect
+                  values={lines(policyDraft.deniedConnectors)}
+                  onChange={(values) => patchPolicyDraft({ deniedConnectors: values.join("\n") })}
+                  provider={connectorReferenceProvider}
+                  createCustomOption={(value) => wildcardReferenceOption(value)}
+                  aria-label="Denied file connections"
+                  placeholder="Add a connection or wildcard pattern"
+                  disabled={saving || !canWrite}
+                />
               </FormField>
               <FormField label="i18n:govoplan-files.allowed_credential_ids.efcaba2d">
-                <textarea value={policyDraft.allowedCredentials} disabled={saving || !canWrite} onChange={(event) => patchPolicyDraft({ allowedCredentials: event.target.value })} rows={3} placeholder={"tenant-webdav-credentials\nshared-*"} />
+                <ReferenceMultiSelect
+                  values={lines(policyDraft.allowedCredentials)}
+                  onChange={(values) => patchPolicyDraft({ allowedCredentials: values.join("\n") })}
+                  provider={credentialReferenceProvider}
+                  createCustomOption={(value) => wildcardReferenceOption(value)}
+                  aria-label="Allowed file credentials"
+                  placeholder="Add a credential or wildcard pattern"
+                  disabled={saving || !canWrite}
+                />
               </FormField>
               <FormField label="i18n:govoplan-files.denied_credential_ids.b6838bc2">
-                <textarea value={policyDraft.deniedCredentials} disabled={saving || !canWrite} onChange={(event) => patchPolicyDraft({ deniedCredentials: event.target.value })} rows={3} placeholder={"personal-*\nblocked-*"} />
+                <ReferenceMultiSelect
+                  values={lines(policyDraft.deniedCredentials)}
+                  onChange={(values) => patchPolicyDraft({ deniedCredentials: values.join("\n") })}
+                  provider={credentialReferenceProvider}
+                  createCustomOption={(value) => wildcardReferenceOption(value)}
+                  aria-label="Denied file credentials"
+                  placeholder="Add a credential or wildcard pattern"
+                  disabled={saving || !canWrite}
+                />
               </FormField>
               <FormField label="i18n:govoplan-files.allowed_providers.82a9c23e">
-                <textarea value={policyDraft.allowedProviders} disabled={saving || !canWrite} onChange={(event) => patchPolicyDraft({ allowedProviders: event.target.value })} rows={3} placeholder={"webdav\nnextcloud\nsmb"} />
+                <ReferenceMultiSelect
+                  values={lines(policyDraft.allowedProviders)}
+                  onChange={(values) => patchPolicyDraft({ allowedProviders: values.join("\n") })}
+                  provider={providerReferenceProvider}
+                  createCustomOption={(value) => wildcardReferenceOption(value)}
+                  aria-label="Allowed file providers"
+                  placeholder="Add a provider or wildcard pattern"
+                  disabled={saving || !canWrite}
+                />
               </FormField>
               <FormField label="i18n:govoplan-files.denied_providers.149b29f4">
-                <textarea value={policyDraft.deniedProviders} disabled={saving || !canWrite} onChange={(event) => patchPolicyDraft({ deniedProviders: event.target.value })} rows={3} placeholder={"generic\nnfs"} />
+                <ReferenceMultiSelect
+                  values={lines(policyDraft.deniedProviders)}
+                  onChange={(values) => patchPolicyDraft({ deniedProviders: values.join("\n") })}
+                  provider={providerReferenceProvider}
+                  createCustomOption={(value) => wildcardReferenceOption(value)}
+                  aria-label="Denied file providers"
+                  placeholder="Add a provider or wildcard pattern"
+                  disabled={saving || !canWrite}
+                />
               </FormField>
               <FormField label="i18n:govoplan-files.allowed_paths.c953b4be">
                 <textarea value={policyDraft.allowedPaths} disabled={saving || !canWrite} onChange={(event) => patchPolicyDraft({ allowedPaths: event.target.value })} rows={3} placeholder={"GovOPlaN\nreports/*"} />
@@ -887,6 +1018,20 @@ export default function FileConnectorSettingsPanel({
                 <textarea value={policyDraft.deniedUrls} disabled={saving || !canWrite} onChange={(event) => patchPolicyDraft({ deniedUrls: event.target.value })} rows={3} placeholder={"http://*\n*://legacy.example.test/*"} />
               </FormField>
             </div>
+            {policyConflicts.length ? (
+              <DismissibleAlert
+                tone="warning"
+                resetKey={policyConflicts.join("\u0000")}
+              >
+                Allow and deny rules contain the same values for{" "}
+                {policyConflicts.join("; ")}. Deny rules take precedence.
+              </DismissibleAlert>
+            ) : (
+              <p className="muted small-note">
+                When an allow and deny rule both match, the deny rule takes
+                precedence.
+              </p>
+            )}
             <div className="file-connector-settings-section file-connector-policy-locks">
               <ToggleSwitch label="i18n:govoplan-files.lower_connection_limits.4f9838bc" checked={policyDraft.allowLowerConnectionLimits} disabled={saving || !canWrite} onChange={(allowLowerConnectionLimits) => patchPolicyDraft({ allowLowerConnectionLimits })} />
               <ToggleSwitch label="i18n:govoplan-files.lower_credential_limits.ec2b72bc" checked={policyDraft.allowLowerCredentialLimits} disabled={saving || !canWrite} onChange={(allowLowerCredentialLimits) => patchPolicyDraft({ allowLowerCredentialLimits })} />
@@ -1432,10 +1577,39 @@ function connectorCredentialDraftKey(draft: ConnectorCredentialDraft): string {
 function credentialOptionsForProfileDraft(credentials: FileConnectorCredential[], draft: ConnectorProfileDraft): FileConnectorCredential[] {
   return credentials.filter((credential) =>
     credential.id === draft.credentialProfileId ||
-    credential.enabled && (!credential.provider || credential.provider === draft.provider)
+    credential.enabled &&
+    (!credential.provider || credential.provider === draft.provider) &&
+    reusableCredentialAllowsProfile(credential, draft.id)
   );
 }
 
+function reusableCredentialAvailableAtScope(
+  credential: FileConnectorCredential,
+  scopeType: ConnectorScope,
+  scopeId: string | null
+): boolean {
+  if (connectorBelongsToEditableScope(credential, scopeType, scopeId)) return true;
+  if (credential.source_kind !== "credential_envelope") return false;
+  const inherited = credential.metadata?.inherit_to_lower_scopes === true;
+  if (!inherited) return false;
+  if (credential.scope_type === "system") return scopeType !== "system";
+  if (credential.scope_type === "tenant") {
+    return scopeType === "group" || scopeType === "user";
+  }
+  return false;
+}
+
+function reusableCredentialAllowsProfile(
+  credential: FileConnectorCredential,
+  profileId: string
+): boolean {
+  if (credential.source_kind !== "credential_envelope") return true;
+  const refs = Array.isArray(credential.metadata?.allowed_server_refs)
+    ? credential.metadata.allowed_server_refs.filter((value): value is string => typeof value === "string")
+    : [];
+  return refs.length === 0 || refs.includes(`files:${profileId}`);
+}
+
 function credentialProfileIdForDraft(draft: ConnectorProfileDraft, credentials: FileConnectorCredential[]): string {
   const options = credentialOptionsForProfileDraft(credentials, draft);
   if (draft.credentialProfileId && options.some((credential) => credential.id === draft.credentialProfileId)) {
@@ -1656,6 +1830,26 @@ function lines(value: string): string[] {
   return value.split(/\r?\n/).map((line) => line.trim()).filter(Boolean);
 }
 
+function policyReferenceConflicts(
+  draft: CentralConnectorPolicyDraft
+): string[] {
+  return [
+    ["connections", draft.allowedConnectors, draft.deniedConnectors],
+    ["credentials", draft.allowedCredentials, draft.deniedCredentials],
+    ["providers", draft.allowedProviders, draft.deniedProviders],
+    ["paths", draft.allowedPaths, draft.deniedPaths],
+    ["endpoint URLs", draft.allowedUrls, draft.deniedUrls]
+  ].flatMap(([label, allowed, denied]) => {
+    const deniedValues = new Set(
+      lines(denied).map((value) => value.toLocaleLowerCase())
+    );
+    const overlaps = lines(allowed).filter((value) =>
+      deniedValues.has(value.toLocaleLowerCase())
+    );
+    return overlaps.length ? [`${label}: ${overlaps.join(", ")}`] : [];
+  });
+}
+
 function policyRuleList(policy: Record<string, unknown>, kind: "allow" | "deny", field: "connectors" | "providers" | "credentials" | "external_paths" | "external_urls"): string[] {
   const rule = recordValue(policy[kind]) ??
   recordValue(policy[kind === "allow" ? "allowlist" : "denylist"]) ??

webui/src/features/files/FileSpacesWidget.tsx

@@ -0,0 +1,98 @@
+import { useCallback } from "react";
+import { Folder, Network } from "lucide-react";
+import { Link } from "react-router-dom";
+import {
+  DashboardWidgetList,
+  DismissibleAlert,
+  LoadingFrame,
+  StatusBadge,
+  useDashboardWidgetData,
+  type ApiSettings,
+  type DashboardWidgetConfiguration
+} from "@govoplan/core-webui";
+import {
+  listFileSpaces,
+  type FileSpace
+} from "../../api/files";
+
+export default function FileSpacesWidget({
+  settings,
+  refreshKey,
+  configuration
+}: {
+  settings: ApiSettings;
+  refreshKey: number;
+  configuration: DashboardWidgetConfiguration;
+}) {
+  const maxItems = numberSetting(configuration.maxItems, 6, 1, 16);
+  const includeConnectors = configuration.includeConnectors !== false;
+  const load = useCallback(async () => {
+    const response = await listFileSpaces(settings);
+    return response.spaces
+      .filter(
+        (space) =>
+          includeConnectors || (space.space_type ?? "managed") === "managed"
+      )
+      .sort((left, right) => left.label.localeCompare(right.label))
+      .slice(0, maxItems);
+  }, [includeConnectors, maxItems, settings]);
+  const { data: spaces, loading, error } = useDashboardWidgetData(
+    load,
+    refreshKey
+  );
+
+  return (
+    <LoadingFrame loading={loading} label="Loading file spaces">
+      {error && (
+        <DismissibleAlert tone="warning" resetKey={error}>
+          {error}
+        </DismissibleAlert>
+      )}
+      <DashboardWidgetList
+        emptyText="No file spaces are available."
+        items={(spaces ?? []).map((space) => ({
+          id: space.id,
+          title: space.label,
+          detail: spaceDescription(space),
+          meta: space.owner_type === "group" ? "Group" : "Personal",
+          leading:
+            space.space_type === "connector" ? (
+              <Network size={17} aria-hidden="true" />
+            ) : (
+              <Folder size={17} aria-hidden="true" />
+            ),
+          trailing: space.read_only ? (
+            <StatusBadge status="locked" label="Read only" />
+          ) : undefined,
+          to: "/files"
+        }))}
+      />
+      <div className="dashboard-contribution-footer">
+        <Link className="btn btn-secondary" to="/files">
+          Open files
+        </Link>
+      </div>
+    </LoadingFrame>
+  );
+}
+
+function spaceDescription(space: FileSpace): string {
+  if (space.space_type !== "connector") {
+    return space.description || "Managed storage";
+  }
+  return [space.provider, space.library_id, space.remote_path]
+    .filter(Boolean)
+    .join(" · ") || "Connected storage";
+}
+
+function numberSetting(
+  value: unknown,
+  fallback: number,
+  minimum: number,
+  maximum: number
+): number {
+  const numeric = typeof value === "number" ? value : Number(value);
+  return Number.isFinite(numeric)
+    ? Math.max(minimum, Math.min(maximum, Math.floor(numeric)))
+    : fallback;
+}

webui/src/features/files/FilesPage.tsx

@@ -1,5 +1,5 @@
 import { useEffect, useMemo, useRef, useState, type DragEvent as ReactDragEvent, type KeyboardEvent as ReactKeyboardEvent, type MouseEvent as ReactMouseEvent } from "react";
-import { ArrowUp, ChevronRight, Copy, Download, File, Folder, Home, KeyRound, Link2, MoveRight, Plus, RefreshCw, Search, Trash2, UploadCloud } from "lucide-react";
+import { ArrowUp, ChevronRight, Copy, Download, File, Folder, Home, KeyRound, Link2, ListFilter, MoveRight, Plus, RefreshCw, Search, Share2, Trash2, UploadCloud } from "lucide-react";
 import {
   Button,
   ConfirmDialog,
@@ -25,6 +25,7 @@ import {
   downloadFilesAsZip,
   fetchResourceAccessExplanation,
   listFilesDelta,
+  listFilesByProperties,
   listFileConnectorProfiles,
   listFileSpaces,
   listManagedFileSnapshot,
@@ -38,6 +39,7 @@ import {
   type FileConnectorBrowseItem,
   type FileConnectorProfile,
   type FileDeltaResponse,
+  type FileCampaignUsageFilter,
   type FileFolder,
   type FileSpace,
   type ManagedFile,
@@ -46,6 +48,7 @@ import {
 "../../api/files";
 import { EMPTY_FILES, EMPTY_FOLDERS, EMPTY_SPACES, INTERNAL_DRAG_TYPE } from "./constants";
 import { FileConflictDialog, FileContextMenu, FileDialog, FolderTree, RenamePreviewList, TransferFolderSelector } from "./components/FileManagerComponents";
+import FileShareDialog from "./components/FileShareDialog";
 import type {
   ContextMenuState,
   DialogKind,
@@ -88,6 +91,7 @@ import { useFileDialogs } from "./hooks/useFileDialogs";
 import { useFileDragDropState } from "./hooks/useFileDragDropState";
 
 type UploadPhase = "idle" | "uploading" | "unpacking" | "finalizing";
+type AuditRelevantFilter = "" | "true" | "false";
 type FileAccessExplanationTarget = {
   resourceType: "file" | "folder";
   resourceId: string;
@@ -103,6 +107,7 @@ export default function FilesPage({ settings, auth }: {settings: ApiSettings;aut
   const canUpload = hasScope(auth, "files:upload");
   const canOrganize = hasScope(auth, "files:organize");
   const canDelete = hasScope(auth, "files:delete");
+  const canShare = hasScope(auth, "files:file:share");
   const [spaces, setSpaces] = useState<FileSpace[]>(EMPTY_SPACES);
   const [activeSpaceId, setActiveSpaceId] = useState("");
   const activeSpace = spaces.find((space) => space.id === activeSpaceId) ?? spaces[0] ?? null;
@@ -118,6 +123,11 @@ export default function FilesPage({ settings, auth }: {settings: ApiSettings;aut
   const [searchCaseSensitive, setSearchCaseSensitive] = useState(false);
   const [searchActive, setSearchActive] = useState(false);
   const [searchResults, setSearchResults] = useState<ManagedFile[] | null>(null);
+  const [campaignUsageFilter, setCampaignUsageFilter] = useState<"" | FileCampaignUsageFilter>("");
+  const [auditRelevantFilter, setAuditRelevantFilter] = useState<AuditRelevantFilter>("");
+  const [propertyFiltersActive, setPropertyFiltersActive] = useState(false);
+  const [propertyFilterResults, setPropertyFilterResults] = useState<ManagedFile[] | null>(null);
+  const [propertyFilterTotal, setPropertyFilterTotal] = useState<number | null>(null);
   const [sortColumn, setSortColumn] = useState<SortColumn>("name");
   const [sortDirection, setSortDirection] = useState<SortDirection>("asc");
   const [unmatchedCount, setUnmatchedCount] = useState<number | null>(null);
@@ -146,6 +156,7 @@ export default function FilesPage({ settings, auth }: {settings: ApiSettings;aut
   const [accessExplanationTarget, setAccessExplanationTarget] = useState<FileAccessExplanationTarget | null>(null);
   const [resourceAccessExplanation, setResourceAccessExplanation] = useState<ResourceAccessExplanationResponse | null>(null);
   const [resourceAccessLoading, setResourceAccessLoading] = useState(false);
+  const [shareDialogFile, setShareDialogFile] = useState<ManagedFile | null>(null);
   const { setDragActive, internalDrag, setInternalDrag, dropTargetKey, setDropTargetKey, clearDropState: clearDragDropState } = useFileDragDropState();
   const {
     dialog,
@@ -176,11 +187,19 @@ export default function FilesPage({ settings, auth }: {settings: ApiSettings;aut
   const [renameSuffix, setRenameSuffix] = useState("");
   const [renameRecursive, setRenameRecursive] = useState(false);
   const [renamePreview, setRenamePreview] = useState<RenameResponse | null>(null);
-  const visibleFiles = searchActive && searchResults ? searchResults : files;
+  const visibleFiles = useMemo(() => {
+    if (searchActive && searchResults && propertyFiltersActive && propertyFilterResults) {
+      const ids = new Set(propertyFilterResults.map((file) => file.id));
+      return searchResults.filter((file) => ids.has(file.id));
+    }
+    if (propertyFiltersActive && propertyFilterResults) return propertyFilterResults;
+    if (searchActive && searchResults) return searchResults;
+    return files;
+  }, [files, propertyFilterResults, propertyFiltersActive, searchActive, searchResults]);
   const explorerEntries = useMemo(() => {
-    const entries = buildExplorerEntries(visibleFiles, folders, currentFolder, searchActive);
+    const entries = buildExplorerEntries(visibleFiles, folders, currentFolder, searchActive || propertyFiltersActive);
     return sortExplorerEntries(entries, sortColumn, sortDirection);
-  }, [visibleFiles, folders, currentFolder, searchActive, sortColumn, sortDirection]);
+  }, [visibleFiles, folders, currentFolder, searchActive, propertyFiltersActive, sortColumn, sortDirection]);
   const fileListViewportRef = useRef<HTMLDivElement | null>(null);
   const fileListMeasureRowRef = useRef<HTMLDivElement | null>(null);
   const managedSpaceLoadsInFlightRef = useRef<Set<string>>(new Set());
@@ -229,6 +248,14 @@ export default function FilesPage({ settings, auth }: {settings: ApiSettings;aut
     onOpenFolder: openFolder
   });
   const selectedFiles = useMemo(() => files.filter((file) => selectedFileIds.has(file.id)), [files, selectedFileIds]);
+  const shareManageableFile = useMemo(() => {
+    if (!canShare || selectedFiles.length !== 1 || selectedFolderPaths.size > 0) return null;
+    const file = selectedFiles[0];
+    const ownsFile = file.owner_type === "user"
+      ? file.owner_id === auth.user.id
+      : auth.groups.some((group) => group.id === file.owner_id);
+    return ownsFile || hasScope(auth, "files:file:admin") ? file : null;
+  }, [auth, canShare, selectedFiles, selectedFolderPaths]);
   const selectedDownloadFileIds = useMemo(() => fileIdsForSelection(files, selectedFileIds, selectedFolderPaths), [files, selectedFileIds, selectedFolderPaths]);
   const accessExplainableTarget = useMemo(
     () => accessTargetForSelection(selectedFileIds, selectedFolderPaths, activeSpaceId),
@@ -285,7 +312,7 @@ export default function FilesPage({ settings, auth }: {settings: ApiSettings;aut
     if (!viewport) return;
     viewport.scrollTop = 0;
     setFileListScrollTop(0);
-  }, [activeSpaceId, currentFolder, searchActive, searchResults, sortColumn, sortDirection]);
+  }, [activeSpaceId, currentFolder, propertyFiltersActive, propertyFilterResults, searchActive, searchResults, sortColumn, sortDirection]);
 
   async function loadSpaces() {
     setBusy(true);
@@ -373,6 +400,11 @@ export default function FilesPage({ settings, auth }: {settings: ApiSettings;aut
         setSearchActive(false);
         setSearchPattern("");
         setSearchResults(null);
+        setCampaignUsageFilter("");
+        setAuditRelevantFilter("");
+        setPropertyFiltersActive(false);
+        setPropertyFilterResults(null);
+        setPropertyFilterTotal(null);
       }
     } catch (err) {
       setError(err instanceof Error ? err.message : String(err));
@@ -410,6 +442,11 @@ export default function FilesPage({ settings, auth }: {settings: ApiSettings;aut
     setSearchPattern("");
     setSearchActive(false);
     setSearchResults(null);
+    setCampaignUsageFilter("");
+    setAuditRelevantFilter("");
+    setPropertyFiltersActive(false);
+    setPropertyFilterResults(null);
+    setPropertyFilterTotal(null);
     setSelectedFileIds(new Set());
     setSelectedFolderPaths(new Set());
     setConnectorSpaceSelectedItem(null);
@@ -431,6 +468,11 @@ export default function FilesPage({ settings, auth }: {settings: ApiSettings;aut
       setSearchActive(false);
       setSearchPattern("");
       setSearchResults(null);
+      setCampaignUsageFilter("");
+      setAuditRelevantFilter("");
+      setPropertyFiltersActive(false);
+      setPropertyFilterResults(null);
+      setPropertyFilterTotal(null);
     }
     setUnmatchedCount(null);
     setRenamePreview(null);
@@ -1001,6 +1043,50 @@ export default function FilesPage({ settings, auth }: {settings: ApiSettings;aut
     setSelectedFolderPaths(new Set());
   }
 
+  async function runPropertyFilters(
+    campaignUsage: "" | FileCampaignUsageFilter,
+    auditRelevant: AuditRelevantFilter
+  ) {
+    if (!activeSpace || activeSpaceIsConnector) return;
+    if (!campaignUsage && !auditRelevant) {
+      clearPropertyFilters();
+      return;
+    }
+    setBusy(true);
+    setError("");
+    setMessage("");
+    try {
+      const response = await listFilesByProperties(settings, {
+        owner_type: activeSpace.owner_type,
+        owner_id: activeSpace.owner_id,
+        path_prefix: currentFolder,
+        campaign_usage: campaignUsage || undefined,
+        audit_relevant: auditRelevant ? auditRelevant === "true" : undefined
+      });
+      setCampaignUsageFilter(campaignUsage);
+      setAuditRelevantFilter(auditRelevant);
+      setPropertyFilterResults(response.files);
+      setPropertyFilterTotal(response.total);
+      setPropertyFiltersActive(true);
+      setSelectedFileIds(new Set());
+      setSelectedFolderPaths(new Set());
+    } catch (err) {
+      setError(err instanceof Error ? err.message : String(err));
+    } finally {
+      setBusy(false);
+    }
+  }
+
+  function clearPropertyFilters() {
+    setCampaignUsageFilter("");
+    setAuditRelevantFilter("");
+    setPropertyFiltersActive(false);
+    setPropertyFilterResults(null);
+    setPropertyFilterTotal(null);
+    setSelectedFileIds(new Set());
+    setSelectedFolderPaths(new Set());
+  }
+
   function deleteSelected(
   fileIds: Set<string> = selectedFileIds,
   folderPaths: Set<string> = selectedFolderPaths,
@@ -1821,6 +1907,7 @@ export default function FilesPage({ settings, auth }: {settings: ApiSettings;aut
         <Link2 size={16} aria-hidden="true" /> i18n:govoplan-files.add_space.e4d674d4
       </Button>
       <Button onClick={() => void downloadSelection()} disabled={busy || activeSpaceIsConnector || !canDownload || selectedDownloadFileIds.length === 0}><Download size={16} aria-hidden="true" /> {downloadLabel}</Button>
+      <Button onClick={() => shareManageableFile && setShareDialogFile(shareManageableFile)} disabled={busy || activeSpaceIsConnector || !shareManageableFile}><Share2 size={16} aria-hidden="true" /> Manage shares</Button>
       <Button onClick={() => openDialog("create-folder", toolbarTarget())} disabled={busy || !activeSpace || activeSpaceIsConnector || !canOrganize}><Plus size={16} aria-hidden="true" /> i18n:govoplan-files.create_folder.97bafaba</Button>
       <Button onClick={() => openTransferDialog("move")} disabled={busy || activeSpaceIsConnector || !canOrganize || !hasSelection}><MoveRight size={16} aria-hidden="true" /> i18n:govoplan-files.move.76cdb950</Button>
       <Button onClick={() => openTransferDialog("copy")} disabled={busy || activeSpaceIsConnector || !canOrganize || !hasSelection}><Copy size={16} aria-hidden="true" /> i18n:govoplan-files.copy.af74f7c5</Button>
@@ -2067,6 +2154,15 @@ export default function FilesPage({ settings, auth }: {settings: ApiSettings;aut
               disabled={!activeSpace || activeSpaceIsConnector}
               onSearch={(patternValue, caseSensitiveValue) => void runPatternSearch(patternValue, caseSensitiveValue)}
               onClear={() => void clearSearch()} />
+            <FilePropertyFilterRow
+              campaignUsage={campaignUsageFilter}
+              auditRelevant={auditRelevantFilter}
+              busy={busy}
+              active={propertyFiltersActive}
+              disabled={!activeSpace || activeSpaceIsConnector}
+              total={propertyFilterTotal}
+              onApply={(campaignUsage, auditRelevant) => void runPropertyFilters(campaignUsage, auditRelevant)}
+              onClear={clearPropertyFilters} />
             
             <div className="file-list-meta">
               <span>{activeSpaceIsConnector ? connectorSpaceSelectedItem?.kind === "file" ? connectorSpaceSelectedItem.name : "i18n:govoplan-files.remote_connector_space.d8956863" : selectedSummary}</span>
@@ -2223,6 +2319,17 @@ export default function FilesPage({ settings, auth }: {settings: ApiSettings;aut
         </FileDialog>
       }
 
+      {shareDialogFile &&
+      <FileShareDialog
+        settings={settings}
+        file={shareDialogFile}
+        tenantId={auth.active_tenant?.id || auth.tenant.id}
+        onClose={() => setShareDialogFile(null)}
+        onChanged={() => {
+          if (activeSpace) void loadSpaceContents(activeSpace, { silent: true });
+        }} />
+      }
+
       {dialog === "upload" &&
       <FileDialog title={i18nMessage("i18n:govoplan-files.upload_to_value_value.b83a34b4", { value0: activeDialogSpace?.label || "i18n:govoplan-files.files.6ce6c512", value1: activeDialogTarget?.folderPath || "i18n:govoplan-files.root.e96857c5" })} onClose={closeDialog}>
           <FileDropZone
@@ -2509,6 +2616,72 @@ export default function FilesPage({ settings, auth }: {settings: ApiSettings;aut
 
 }
 
+function FilePropertyFilterRow({
+  campaignUsage,
+  auditRelevant,
+  busy,
+  active,
+  disabled,
+  total,
+  onApply,
+  onClear
+}: {
+  campaignUsage: "" | FileCampaignUsageFilter;
+  auditRelevant: AuditRelevantFilter;
+  busy: boolean;
+  active: boolean;
+  disabled: boolean;
+  total: number | null;
+  onApply: (campaignUsage: "" | FileCampaignUsageFilter, auditRelevant: AuditRelevantFilter) => void;
+  onClear: () => void;
+}) {
+  const [campaignUsageDraft, setCampaignUsageDraft] = useState(campaignUsage);
+  const [auditRelevantDraft, setAuditRelevantDraft] = useState(auditRelevant);
+
+  useEffect(() => {
+    setCampaignUsageDraft(campaignUsage);
+  }, [campaignUsage]);
+
+  useEffect(() => {
+    setAuditRelevantDraft(auditRelevant);
+  }, [auditRelevant]);
+
+  return (
+    <div className="file-property-filter-row">
+      <ListFilter size={17} aria-hidden="true" />
+      <label className="file-property-filter-field">
+        <span>Campaign use</span>
+        <select
+          value={campaignUsageDraft}
+          disabled={busy || disabled}
+          onChange={(event) => setCampaignUsageDraft(event.target.value as "" | FileCampaignUsageFilter)}>
+          <option value="">Any</option>
+          <option value="linked">Linked or used</option>
+          <option value="unlinked">Not linked or used</option>
+        </select>
+      </label>
+      <label className="file-property-filter-field">
+        <span>Audit evidence</span>
+        <select
+          value={auditRelevantDraft}
+          disabled={busy || disabled}
+          onChange={(event) => setAuditRelevantDraft(event.target.value as AuditRelevantFilter)}>
+          <option value="">Any</option>
+          <option value="true">Audit relevant</option>
+          <option value="false">Not audit relevant</option>
+        </select>
+      </label>
+      <Button
+        onClick={() => onApply(campaignUsageDraft, auditRelevantDraft)}
+        disabled={busy || disabled || !campaignUsageDraft && !auditRelevantDraft}>
+        Apply filters
+      </Button>
+      {active && <Button onClick={onClear} disabled={busy}>Clear filters</Button>}
+      {active && total !== null && <span className="file-property-filter-count">{total} matching file{total === 1 ? "" : "s"}</span>}
+    </div>
+  );
+}
+
 function FileSearchRow({
   value,
   caseSensitive,
@@ -2559,7 +2732,15 @@ function FileSearchRow({
 }
 
 function activeCampaignShares(file: ManagedFile) {
-  return (file.shares ?? []).filter((share) => share.target_type === "campaign" && !share.revoked_at);
+  return (file.shares ?? []).filter((share) =>
+    share.target_type === "campaign" && fileShareIsActive(share)
+  );
+}
+
+function fileShareIsActive(share: NonNullable<ManagedFile["shares"]>[number]): boolean {
+  if (typeof share.active === "boolean") return share.active;
+  return !share.revoked_at
+    && (!share.expires_at || new Date(share.expires_at).getTime() > Date.now());
 }
 
 function activeCampaignShareCount(file: ManagedFile): number {

webui/src/features/files/components/FileShareDialog.tsx

@@ -0,0 +1,300 @@
+import { useEffect, useMemo, useState } from "react";
+import { Trash2 } from "lucide-react";
+import {
+  Button,
+  ConfirmDialog,
+  DataGrid,
+  DismissibleAlert,
+  FormField,
+  ReferenceSelect,
+  StatusBadge,
+  TableActionGroup,
+  type ApiSettings,
+  type DataGridColumn
+} from "@govoplan/core-webui";
+import {
+  createFileShare,
+  fileShareTargetProvider,
+  listFileShares,
+  revokeFileShare,
+  type FileShare,
+  type ManagedFile
+} from "../../../api/files";
+import { FileDialog } from "./FileManagerComponents";
+import { formatDate } from "../utils/fileManagerUtils";
+
+type ShareTargetType = "user" | "group" | "tenant";
+type SharePermission = "read" | "write" | "manage";
+
+export default function FileShareDialog({
+  settings,
+  file,
+  tenantId,
+  onClose,
+  onChanged
+}: {
+  settings: ApiSettings;
+  file: ManagedFile;
+  tenantId: string;
+  onClose: () => void;
+  onChanged: () => void;
+}) {
+  const [shares, setShares] = useState<FileShare[]>([]);
+  const [targetType, setTargetType] = useState<ShareTargetType>("user");
+  const [targetId, setTargetId] = useState("");
+  const [permission, setPermission] = useState<SharePermission>("read");
+  const [expiresAt, setExpiresAt] = useState("");
+  const [busy, setBusy] = useState(false);
+  const [error, setError] = useState("");
+  const [revokeTarget, setRevokeTarget] = useState<FileShare | null>(null);
+  const targetProvider = useMemo(
+    () => targetType === "tenant"
+      ? null
+      : fileShareTargetProvider(settings, file.id, targetType),
+    [file.id, settings, targetType]
+  );
+
+  useEffect(() => {
+    void refresh();
+  }, [file.id]);
+
+  async function refresh() {
+    setBusy(true);
+    setError("");
+    try {
+      const response = await listFileShares(settings, file.id, {
+        includeInactive: true
+      });
+      setShares(response.shares);
+    } catch (err) {
+      setError(err instanceof Error ? err.message : String(err));
+    } finally {
+      setBusy(false);
+    }
+  }
+
+  async function grant() {
+    const effectiveTargetId = targetType === "tenant" ? tenantId : targetId;
+    if (!effectiveTargetId) return;
+    setBusy(true);
+    setError("");
+    try {
+      await createFileShare(settings, file.id, {
+        target_type: targetType,
+        target_id: effectiveTargetId,
+        permission,
+        expires_at: expiresAt ? new Date(expiresAt).toISOString() : null
+      });
+      setTargetId("");
+      setExpiresAt("");
+      await refresh();
+      onChanged();
+    } catch (err) {
+      setError(err instanceof Error ? err.message : String(err));
+      setBusy(false);
+    }
+  }
+
+  async function revoke() {
+    if (!revokeTarget) return;
+    setBusy(true);
+    setError("");
+    try {
+      await revokeFileShare(settings, file.id, revokeTarget.id);
+      setRevokeTarget(null);
+      await refresh();
+      onChanged();
+    } catch (err) {
+      setError(err instanceof Error ? err.message : String(err));
+      setBusy(false);
+    }
+  }
+
+  const columns = useMemo<DataGridColumn<FileShare>[]>(() => [
+    {
+      id: "target",
+      header: "Target",
+      minWidth: 220,
+      resizable: true,
+      sortable: true,
+      filterable: true,
+      value: (share) => `${share.target_type}: ${share.target_id}`
+    },
+    {
+      id: "permission",
+      header: "Permission",
+      width: 115,
+      sortable: true,
+      filterable: true,
+      value: (share) => share.permission
+    },
+    {
+      id: "created",
+      header: "Created",
+      minWidth: 160,
+      resizable: true,
+      sortable: true,
+      value: (share) => formatDate(share.created_at)
+    },
+    {
+      id: "creator",
+      header: "Created by",
+      minWidth: 150,
+      resizable: true,
+      filterable: true,
+      value: (share) => share.created_by_user_id || "System"
+    },
+    {
+      id: "expiry",
+      header: "Expires",
+      minWidth: 160,
+      resizable: true,
+      sortable: true,
+      value: (share) => share.expires_at ? formatDate(share.expires_at) : "No expiry"
+    },
+    {
+      id: "status",
+      header: "Status",
+      width: 115,
+      sortable: true,
+      value: (share) => shareStatus(share),
+      render: (share) => (
+        <StatusBadge
+          status={share.active ? "active" : "inactive"}
+          label={shareStatus(share)}
+        />
+      )
+    },
+    {
+      id: "actions",
+      header: "Actions",
+      width: 72,
+      sticky: "end",
+      align: "right",
+      render: (share) => (
+        <TableActionGroup
+          minimumSlots={1}
+          actions={[
+            {
+              id: "revoke",
+              label: "Revoke share",
+              icon: <Trash2 size={16} aria-hidden="true" />,
+              variant: "danger",
+              disabled: !share.active || busy,
+              disabledReason: !share.active ? "This share is already inactive." : undefined,
+              onClick: () => setRevokeTarget(share)
+            }
+          ]}
+        />
+      )
+    }
+  ], [busy]);
+
+  return (
+    <>
+      <FileDialog title={`Manage shares - ${file.filename}`} onClose={() => !busy && onClose()}>
+        <div className="file-share-dialog-content">
+          {error ? (
+            <DismissibleAlert tone="danger" resetKey={error}>
+              {error}
+            </DismissibleAlert>
+          ) : null}
+          <div className="file-share-form">
+            <FormField label="Target type">
+              <select
+                value={targetType}
+                disabled={busy}
+                onChange={(event) => {
+                  setTargetType(event.target.value as ShareTargetType);
+                  setTargetId("");
+                }}
+              >
+                <option value="user">User</option>
+                <option value="group">Group</option>
+                <option value="tenant">Entire tenant</option>
+              </select>
+            </FormField>
+            <FormField label="Target">
+              {targetType === "tenant" ? (
+                <input value={tenantId} disabled readOnly />
+              ) : targetProvider ? (
+                <ReferenceSelect
+                  value={targetId}
+                  onChange={setTargetId}
+                  provider={targetProvider}
+                  disabled={busy}
+                  placeholder={`Select a ${targetType}`}
+                  aria-label={`Share target ${targetType}`}
+                  required
+                />
+              ) : null}
+            </FormField>
+            <FormField label="Permission">
+              <select
+                value={permission}
+                disabled={busy}
+                onChange={(event) => setPermission(event.target.value as SharePermission)}
+              >
+                <option value="read">Read</option>
+                <option value="write">Write</option>
+                <option value="manage">Manage</option>
+              </select>
+            </FormField>
+            <FormField label="Expires (optional)">
+              <input
+                type="datetime-local"
+                value={expiresAt}
+                min={minimumLocalDateTime()}
+                disabled={busy}
+                onChange={(event) => setExpiresAt(event.target.value)}
+              />
+            </FormField>
+            <Button
+              variant="primary"
+              disabled={busy || (targetType !== "tenant" && !targetId)}
+              onClick={() => void grant()}
+            >
+              Grant access
+            </Button>
+          </div>
+          <DataGrid
+            id={`file-${file.id}-shares`}
+            rows={shares}
+            columns={columns}
+            getRowKey={(share) => share.id}
+            emptyText={busy ? "Loading shares..." : "This file has no direct shares."}
+            initialFit="container"
+          />
+          <div className="button-row compact-actions align-end">
+            <Button onClick={onClose} disabled={busy}>Close</Button>
+          </div>
+        </div>
+      </FileDialog>
+      <ConfirmDialog
+        open={Boolean(revokeTarget)}
+        title="Revoke file share"
+        message="Revoke this direct grant? Other independent grants remain in effect."
+        confirmLabel="Revoke"
+        cancelLabel="Cancel"
+        tone="danger"
+        busy={busy}
+        onConfirm={() => void revoke()}
+        onCancel={() => setRevokeTarget(null)}
+      />
+    </>
+  );
+}
+
+function shareStatus(share: FileShare): string {
+  if (share.revoked_at) return "Revoked";
+  if (share.expires_at && new Date(share.expires_at).getTime() <= Date.now()) {
+    return "Expired";
+  }
+  return "Active";
+}
+
+function minimumLocalDateTime(): string {
+  const now = new Date(Date.now() + 60_000);
+  const local = new Date(now.getTime() - now.getTimezoneOffset() * 60_000);
+  return local.toISOString().slice(0, 16);
+}

webui/src/features/files/components/ManagedFileChooser.tsx

@@ -1024,7 +1024,14 @@ renderPatternPreview?: FilesManagedFileChooserProps["renderPatternPreview"])
 
 function isLinkedToTarget(file: ManagedFile, target?: FilesManagedFileLinkTarget): boolean {
   if (!target) return false;
-  return Boolean(file.shares?.some((share) => share.target_type === target.type && share.target_id === target.id && !share.revoked_at));
+  return Boolean(file.shares?.some((share) =>
+    share.target_type === target.type
+    && share.target_id === target.id
+    && (typeof share.active === "boolean"
+      ? share.active
+      : !share.revoked_at
+        && (!share.expires_at || new Date(share.expires_at).getTime() > Date.now()))
+  ));
 }
 
 function readRememberedState(key: string): RememberedChooserState {

webui/src/module.ts

@@ -1,8 +1,16 @@
 import { createElement, lazy } from "react";
-import { hasScope, type AdminSectionsUiCapability, type FilesConnectorsUiCapability, type FilesFileExplorerUiCapability, type PlatformWebModule } from "@govoplan/core-webui";
+import {
+  hasScope,
+  type AdminSectionsUiCapability,
+  type DashboardWidgetsUiCapability,
+  type FilesConnectorsUiCapability,
+  type FilesFileExplorerUiCapability,
+  type PlatformWebModule
+} from "@govoplan/core-webui";
 import { FolderTree } from "./features/files/components/FileManagerComponents";
 import FileConnectorSettingsPanel from "./features/files/FileConnectorSettingsPanel";
 import ManagedFileChooser from "./features/files/components/ManagedFileChooser";
+import FileSpacesWidget from "./features/files/FileSpacesWidget";
 import { listFileSpaces, listFiles, listFilesDelta, listFolders, resolveFilePatterns, shareFilesWithTarget } from "./api/files";
 import { generatedTranslations } from "./i18n/generatedTranslations";
 import "./styles/file-manager.css";
@@ -14,10 +22,55 @@ const translations = {
   en: generatedTranslations.en,
   de: generatedTranslations.de
 };
+const fileDashboardWidgets: DashboardWidgetsUiCapability = {
+  widgets: [
+    {
+      id: "files.spaces",
+      surfaceId: "files.widget.spaces",
+      title: "File spaces",
+      description: "Managed and connected file spaces available to you.",
+      moduleId: "files",
+      category: "Content",
+      order: 35,
+      defaultVisible: false,
+      defaultSize: "medium",
+      supportedSizes: ["medium", "wide"],
+      anyOf: fileRead,
+      refreshIntervalMs: 60_000,
+      defaultConfiguration: {
+        maxItems: 6,
+        includeConnectors: true
+      },
+      configurationFields: [
+        {
+          id: "maxItems",
+          label: "Maximum spaces",
+          kind: "number",
+          min: 1,
+          max: 16,
+          step: 1,
+          required: true
+        },
+        {
+          id: "includeConnectors",
+          label: "Include connected storage",
+          kind: "boolean"
+        }
+      ],
+      render: ({ settings, refreshKey, configuration }) =>
+        createElement(FileSpacesWidget, {
+          settings,
+          refreshKey,
+          configuration
+        })
+    }
+  ]
+};
 const fileConnectorAdminSections: AdminSectionsUiCapability = {
   sections: [
   {
     id: "system-file-connectors",
+    surfaceId: "files.admin.system-connectors",
     label: "i18n:govoplan-files.file_connections.1e362326",
     group: "SYSTEM",
     order: 75,
@@ -30,6 +83,7 @@ const fileConnectorAdminSections: AdminSectionsUiCapability = {
   },
   {
     id: "tenant-file-connectors",
+    surfaceId: "files.admin.tenant-connectors",
     label: "i18n:govoplan-files.file_connections.1e362326",
     group: "TENANT",
     order: 65,
@@ -49,6 +103,14 @@ export const filesModule: PlatformWebModule = {
   version: "1.0.0",
   dependencies: ["access"],
   translations,
+  viewSurfaces: [
+    { id: "files.admin.system-connectors", moduleId: "files", kind: "section", label: "System file connections", order: 75 },
+    { id: "files.admin.tenant-connectors", moduleId: "files", kind: "section", label: "Tenant file connections", order: 65 },
+    { id: "files.admin.group-connectors", moduleId: "files", kind: "section", label: "Group file connections", order: 65 },
+    { id: "files.admin.user-connectors", moduleId: "files", kind: "section", label: "User file connections", order: 65 },
+    { id: "files.settings.connectors", moduleId: "files", kind: "section", label: "Personal file connections", order: 20 },
+    { id: "files.widget.spaces", moduleId: "files", kind: "section", label: "File spaces widget", order: 35 }
+  ],
   navItems: [{ to: "/files", label: "i18n:govoplan-files.files.6ce6c512", iconName: "folder", anyOf: fileRead, order: 40 }],
   routes: [
   { path: "/files", anyOf: fileRead, order: 40, render: ({ settings, auth }) => createElement(FilesPage, { settings, auth }) }],
@@ -67,7 +129,8 @@ export const filesModule: PlatformWebModule = {
     "files.connectors": {
       FileConnectorScopeManager: FileConnectorSettingsPanel
     } satisfies FilesConnectorsUiCapability,
-    "admin.sections": fileConnectorAdminSections
+    "admin.sections": fileConnectorAdminSections,
+    "dashboard.widgets": fileDashboardWidgets
   }
 };
 

webui/src/styles/file-manager.css

@@ -11,6 +11,31 @@
   padding: 4px 0 10px 14px;
 }
 
+.file-property-filter-row {
+  display: flex;
+  align-items: end;
+  gap: 12px;
+  min-width: 0;
+  padding: 0 0 10px 14px;
+}
+
+.file-property-filter-field {
+  display: grid;
+  gap: 4px;
+  min-width: 180px;
+}
+
+.file-property-filter-field > span,
+.file-property-filter-count {
+  color: var(--muted);
+  font-size: var(--font-size-sm);
+}
+
+.file-property-filter-count {
+  align-self: center;
+  margin-left: auto;
+}
+
 .file-list-drop-target.is-active,
 .file-list-drop-target.is-drop-target {
   background: var(--line);
@@ -263,6 +288,35 @@
   width: min(820px, 100%);
 }
 
+.file-dialog:has(.file-share-dialog-content) {
+  width: min(1080px, 100%);
+}
+
+.file-share-dialog-content {
+  display: grid;
+  min-width: 0;
+  gap: 16px;
+}
+
+.file-share-form {
+  display: grid;
+  grid-template-columns: minmax(130px, .7fr) minmax(220px, 1.4fr) minmax(120px, .7fr) minmax(190px, 1fr) auto;
+  gap: 12px;
+  align-items: end;
+}
+
+@media (max-width: 900px) {
+  .file-share-form {
+    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
+  }
+}
+
+@media (max-width: 620px) {
+  .file-share-form {
+    grid-template-columns: minmax(0, 1fr);
+  }
+}
+
 .connector-sync-grid {
   display: grid;
   grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
@@ -565,6 +619,15 @@
   .file-search-row {
     grid-template-columns: 1fr;
   }
+
+  .file-property-filter-row {
+    align-items: stretch;
+    flex-direction: column;
+  }
+
+  .file-property-filter-count {
+    margin-left: 0;
+  }
 }
 
 .file-conflict-summary {