Closes#1 — Bring documentation in line with implemented features.
GAP_ANALYSIS.md:
- Mark auth system and audit log gaps as Implemented
- Replace FreeCAD Integration section with Client Integration (silo-mod)
- Update Phase 2 sections: auth and audit marked COMPLETE
- Update Appendix A file structure and Appendix B endpoints
STATUS.md:
- Update client integrations to reference silo-mod and silo-calc repos
- Update unit tests row to remove pkg/calc/tests reference
ROADMAP.md:
- Update executive summary with links to silo-mod and silo-calc
- Update unit tests row, CAD gap section references
SPECIFICATION.md:
- Update architecture overview to reference silo-mod and silo-calc
- Update Section 5 Client Integration with both repos
REPOSITORY_STATUS.md:
- Remove Python/FreeCAD row from language stats, update totals
