- Add user CRUD: list, create (via Better Auth), update role/status, remove from port
- Add role CRUD: create, update permissions, delete with system role protection
- Full permissions matrix UI with accordion groups and per-action checkboxes
- Validators, services, API routes, and UI components following existing patterns
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
