feat: Add RustFS artifact object store and migration tool

- Implemented RustFsArtifactObjectStore for managing artifacts in RustFS.
- Added unit tests for RustFsArtifactObjectStore functionality.
- Created a RustFS migrator tool to transfer objects from S3 to RustFS.
- Introduced policy preview and report models for API integration.
- Added fixtures and tests for policy preview and report functionality.
- Included necessary metadata and scripts for cache_pkg package.

ops/offline-kit/TASKS.md

@@ -5,3 +5,4 @@
 | DEVOPS-OFFLINE-14-002 | TODO | Offline Kit Guild | DEVOPS-REL-14-001 | Build offline kit packaging workflow (artifact bundling, manifest generation, signature verification). | Offline tarball generated with manifest + checksums + signatures; import script verifies integrity; docs updated. |
 | DEVOPS-OFFLINE-18-003 | TODO | Offline Kit Guild, UX Specialist | DEVOPS-OFFLINE-14-002 | Capture Angular workspace npm cache + Chromium bundle in Offline Kit (`out/offline-kit/web/`) and document refresh cadence. | Web cache directory added to kit manifest; documentation updated with `npm run ci:install`/`verify:chromium` workflow; periodic refresh SOP recorded in Offline Kit guide. |
 | DEVOPS-OFFLINE-18-004 | DONE (2025-10-22) | Offline Kit Guild, Scanner Guild | DEVOPS-OFFLINE-18-003, SCANNER-ANALYZERS-LANG-10-309G | Rebuild Offline Kit bundle with Go analyzer plug-in and updated manifest/signature set. | Kit tarball includes Go analyzer artifacts; manifest/signature refreshed; verification steps executed and logged; docs updated with new bundle version. |
+| DEVOPS-OFFLINE-18-005 | TODO | Offline Kit Guild, Scanner Guild | DEVOPS-REL-14-004, SCANNER-ANALYZERS-LANG-10-309P | Repackage Offline Kit with Python analyzer plug-in artefacts and refreshed manifest/signature set. | Kit tarball includes Python analyzer DLL/PDB/manifest; signature + manifest updated; Offline Kit guide references Python coverage; smoke import validated. |