eb0e2cc feat(backend): Phase 2.5 permission and share models
3eeef6d docs: Mark Phase 2.4 as COMPLETE
a3c6a43 feat(backend): Complete Phase 2.4 - User Management Enhancement
88c9319 docs: Confirm Phase 2.3 completion
04f19e8 fix(ci): Use Docker-labeled runner for all CI/CD jobs

eb0e2cc feat(backend): Phase 2.5 permission and share models
3eeef6d docs: Mark Phase 2.4 as COMPLETE
a3c6a43 feat(backend): Complete Phase 2.4 - User Management Enhancement
88c9319 docs: Confirm Phase 2.3 completion
04f19e8 fix(ci): Use Docker-labeled runner for all CI/CD jobs
