- permission, role, role_permission, user_role_assignment tables
- 42 system permissions across 13 domains
- 6 default roles: Admin, Manager, Sales Associate, Technician, Instructor, Viewer
- Permission inheritance: admin implies edit implies view
- requirePermission() Fastify decorator on ALL routes
- System permissions and roles seeded per company
- Test helpers and API test runner seed RBAC data
- All 42 API tests pass with permissions enforced
- StorageProvider interface with LocalProvider (S3 placeholder)
- File table with entity_type/entity_id references, content type, path
- POST /v1/files (multipart upload), GET /v1/files (list by entity),
GET /v1/files/:id (metadata), GET /v1/files/serve/* (content),
DELETE /v1/files/:id
- member_identifier drops base64 columns, uses file_id FKs
- File validation: type whitelist, size limits, per-entity max
- Fastify storage plugin injects provider into app
- 6 API tests for upload, list, get, delete, validation
- Test runner kills stale port before starting backend
