- Wrap SET LOCAL in transactions for proper connection pooling
- Make workspaceId optional in query DTOs (derived from guards)
- Replace Error throws with UnauthorizedException in activity controller
- Update workspace guard to remove RLS context setting
- Document that services should use withUserContext/withUserTransaction
- Add DomainsModule with full CRUD, search, and activity logging
- Add IdeasModule with quick capture endpoint
- Add LayoutsModule for user dashboard layouts
- Add WidgetsModule for widget definitions (read-only)
- Update ActivityService with domain/idea logging methods
- Register all new modules in AppModule
