Sync wiki from project files

Repo-docs-MODULE-ARCHITECTURE.md

@@ -1,4 +1,4 @@
-<!-- codex-wiki-sync:e92796c6de2292527b4d78a4 -->
+<!-- codex-wiki-sync:6ad5365704d5ffc94ea5c9d8 -->
 
 > Mirrored from `/mnt/DATA/git/govoplan-core/docs/MODULE_ARCHITECTURE.md`.
 > Origin: `repository`.
@@ -382,7 +382,10 @@ Hot enable/disable is a core design principle for every module:
   subscriptions, or irreversible migration state must expose uninstall guard
   providers through their manifest. Guards return `blocker`, `warning`, or
   `info` results and may inspect live state through the core-owned DB session.
-  A guard failure is treated as a blocker.
+  Default package uninstall is non-destructive, so ordinary persistent data
+  should warn that data will remain dormant. Guards should block only when
+  removing the package would corrupt other active modules, workers, external
+  subscriptions, or deployment state. A guard failure is treated as a blocker.
 - Core refreshes the active registry before frontend metadata is returned from
   `/api/v1/platform/modules`; the WebUI shell refetches this metadata after
   module changes so navigation, routes, and UI capabilities update without a
@@ -416,7 +419,8 @@ The package install-plan API records operator intent only:
 - `GET /api/v1/admin/system/modules/package-catalog` reads approved package
   references from `GOVOPLAN_MODULE_PACKAGE_CATALOG` so operators can add known
   module refs to the install plan without typing them manually. The endpoint
-  also reports catalog validity and the configured path.
+  also reports catalog validity, channel, signature, trust state, and the
+  configured path.
 - `PUT /api/v1/admin/system/modules/install-plan` saves planned install or
   uninstall rows. Install rows must use tagged package or git references, not
   local `file:`/workspace paths. Python install rows must also include the
@@ -451,6 +455,11 @@ The package install-plan API records operator intent only:
 - `govoplan-module-installer --validate-package-catalog [path] --format json`
   validates a catalog file or the catalog configured through
   `GOVOPLAN_MODULE_PACKAGE_CATALOG`.
+- `--sign-package-catalog <path> --catalog-signing-key-id <key-id> --catalog-signing-private-key <pem>`
+  signs a catalog with Ed25519. `--require-signed-catalog`,
+  `--approved-catalog-channel <channel>`, and
+  `--catalog-trusted-key <key-id>=<base64-public-key>` enforce the approved
+  release-channel path from an operator shell.
 - `govoplan-module-installer --rollback <run-id>` restores the saved package
   snapshots, restores the captured SQLite or external database snapshot when
   present, and reruns package installation from the previous freeze file.
@@ -479,12 +488,13 @@ The installer preflight is intentionally conservative:
 - uninstalling an active module is blocked;
 - uninstalling a module still present in desired startup state is blocked;
 - uninstalling a module with active/desired dependents is blocked;
-- uninstalling a module that owns migrations is blocked until that module
-  explicitly supports migration retirement;
-- modules that declare migration retirement support should also register a
-  retirement provider. Without a provider, preflight emits a manual-review
-  warning. Providers may return blockers, warnings, and an explanatory summary,
-  but core does not drop schema or data on behalf of modules.
+- uninstalling a module that owns migrations is non-destructive by default:
+  schema/data remain dormant and preflight emits a warning;
+- modules that declare explicit migration retirement support should also
+  register a retirement provider. Without a provider, preflight emits a
+  manual-review warning. Providers may return blockers, warnings, and an
+  explanatory summary, but core does not drop schema or data on behalf of
+  modules.
 - module-owned uninstall guard providers can veto data/migration/worker unsafe
   removals;
 - install refs must be exact versions or tagged git refs;
@@ -496,19 +506,26 @@ request handler cannot reliably restart or roll back the process that is
 currently executing the request. The admin UI therefore remains an operator
 planning and request-submission surface; the trusted daemon/CLI is the executor.
 
-Automatic rollback covers Python and WebUI package state. For `sqlite:///`
-database URLs, `--migrate` also captures a SQLite backup and rollback restores
-it before the supervisor restarts the server. For non-SQLite database URLs,
-`--migrate` requires deployment-specific backup and restore commands. Hook
-commands run in the installer run directory with:
+Automatic rollback covers Python and WebUI package state. The manual/shell
+daemon can run `npm install` and `npm run build`; this remains the supported
+WebUI package path. Browser-loaded remote module bundles are experimental and
+reserved for controlled deployments with integrity/signature policy.
+
+For `sqlite:///` database URLs, `--migrate` also captures a SQLite backup and
+rollback restores it before the supervisor restarts the server. For non-SQLite
+database URLs, `--migrate` requires deployment-specific backup and restore
+commands. A `--database-restore-check-command` can validate the created backup
+artifact before migrations proceed. Hook commands run in the installer run
+directory with:
 
 - `GOVOPLAN_INSTALLER_RUN_DIR`
 - `GOVOPLAN_DATABASE_URL`
 - `GOVOPLAN_DATABASE_BACKUP_PATH`
 - `GOVOPLAN_DATABASE_BACKUP_METADATA`
 
-Module uninstall remains blocked until data and migration-state retirement rules
-are satisfied.
+Module uninstall does not retire data by default. Package removal leaves
+module-owned schema/data dormant. Explicit retirement is a later module-owned
+operation guarded by retirement providers.
 
 The running FastAPI server still reports `package_mutation_supported=false`
 because dependency-manager operations are not executed inside request handlers.

Repo-docs-RELEASE-DEPENDENCIES.md

@@ -1,4 +1,4 @@
-<!-- codex-wiki-sync:dc16e42ac3a76aeec72851ae -->
+<!-- codex-wiki-sync:78c08afa886b630dcc4661ed -->
 
 > Mirrored from `/mnt/DATA/git/govoplan-core/docs/RELEASE_DEPENDENCIES.md`.
 > Origin: `repository`.
@@ -81,13 +81,19 @@ govoplan-module-installer \
 ```
 
 To let the admin UI trigger package work without executing pip/npm inside a
-FastAPI request, run the installer daemon under the process supervisor:
+FastAPI request, run the installer daemon in a separate operator shell. This is
+the preferred development/early-production mode for now because the operator can
+watch output, stop before queueing risky changes, and keep restart commands
+deployment-specific:
 
 ```bash
 govoplan-module-installer \
   --daemon \
   --migrate \
   --build-webui \
+  --database-backup-command 'pg_dump --format=custom "$GOVOPLAN_DATABASE_URL" > "$GOVOPLAN_DATABASE_BACKUP_PATH"' \
+  --database-restore-check-command 'pg_restore --list "$GOVOPLAN_DATABASE_BACKUP_PATH" >/dev/null' \
+  --database-restore-command 'pg_restore --clean --if-exists --dbname "$GOVOPLAN_DATABASE_URL" "$GOVOPLAN_DATABASE_BACKUP_PATH"' \
   --health-url http://127.0.0.1:8000/health \
   --restart-command '<restart govoplan server>'
 ```
@@ -115,14 +121,16 @@ govoplan-module-installer \
   --supervise \
   --migrate \
   --database-backup-command 'pg_dump --format=custom "$GOVOPLAN_DATABASE_URL" > "$GOVOPLAN_DATABASE_BACKUP_PATH"' \
+  --database-restore-check-command 'pg_restore --list "$GOVOPLAN_DATABASE_BACKUP_PATH" >/dev/null' \
   --database-restore-command 'pg_restore --clean --if-exists --dbname "$GOVOPLAN_DATABASE_URL" "$GOVOPLAN_DATABASE_BACKUP_PATH"' \
   --health-url http://127.0.0.1:8000/health \
   --restart-command '<restart govoplan server>'
 ```
 
-The backup command runs before migrations. The restore command is stored in the
-run record and runs during rollback unless an override is passed to
-`--rollback`.
+The backup command runs before migrations. The restore-check command validates
+the produced backup artifact before migrations proceed, without restoring over
+the live database. The restore command is stored in the run record and runs
+during rollback unless an override is passed to `--rollback`.
 
 Supervised mode treats package command failure, migration failure, restart
 failure, and health timeout as rollback triggers. It restores the Python/WebUI
@@ -178,22 +186,55 @@ refs. Validate the catalog before handing it to operators:
 govoplan-module-installer --validate-package-catalog docs/module-package-catalog.example.json --format json
 ```
 
+Release catalogs should be signed and channel-gated. The supported signing
+format is an Ed25519 signature over the canonical catalog JSON object with the
+`signature` field removed. Sign a catalog with:
+
+```bash
+govoplan-module-installer \
+  --sign-package-catalog docs/module-package-catalog.example.json \
+  --catalog-signing-key-id release-key-1 \
+  --catalog-signing-private-key /path/to/ed25519-private.pem
+```
+
+Validate an approved release catalog with:
+
+```bash
+govoplan-module-installer \
+  --validate-package-catalog docs/module-package-catalog.example.json \
+  --require-signed-catalog \
+  --approved-catalog-channel stable \
+  --catalog-trusted-key release-key-1=<base64-ed25519-public-key> \
+  --format json
+```
+
+For the admin UI/daemon path, configure the same policy through environment
+variables:
+
+```bash
+GOVOPLAN_MODULE_PACKAGE_CATALOG=/path/to/catalog.json
+GOVOPLAN_MODULE_PACKAGE_CATALOG_REQUIRE_SIGNATURE=true
+GOVOPLAN_MODULE_PACKAGE_CATALOG_APPROVED_CHANNELS=stable
+GOVOPLAN_MODULE_PACKAGE_CATALOG_TRUSTED_KEYS='{"release-key-1":"<base64-ed25519-public-key>"}'
+```
+
+Unsigned catalogs remain usable for local development when signature
+enforcement is off, but the admin UI labels them as unsigned.
+
 Install rows must use tagged package/git refs or registry packages, not local
-`file:` or workspace links. WebUI package changes still require `npm install`
-and a WebUI rebuild/reload because the current shell resolves WebUI modules from
-the build-time package graph. After backend package changes, run migrations and
-restart or reload the affected server/worker processes according to the
-deployment model.
+`file:` or workspace links. The installer daemon can run `npm install` and
+`npm run build` for WebUI package changes; that is the supported path. Browser
+remote bundles are still experimental and should be treated as a controlled
+deployment option, not the normal install/uninstall mechanism.
 
 Module manifests can declare core compatibility bounds and uninstall guard
-providers. Preflight blocks incompatible manifest contracts/core versions and
-lets module-owned guards veto package removal when data, migrations, workers, or
-schedulers would make uninstall unsafe. Modules that own migrations are treated
-as non-retirable by default, so package uninstall is blocked unless the manifest
-explicitly declares migration retirement support. A migration-owning module that
-does declare retirement support should register a retirement provider; otherwise
-preflight emits a manual-review warning instead of pretending schema/data
-retirement is automated.
+providers. Preflight blocks incompatible manifest contracts/core versions,
+active modules, desired startup state, protected modules, and active dependents.
+Default uninstall is non-destructive: module data and schema remain dormant if
+the package is removed. Persistent-data guards therefore warn by default instead
+of requiring export/delete. A module that supports explicit data/schema
+retirement should register a retirement provider; that provider may block when
+its retirement preconditions are not met.
 
 ## WebUI