- Extended database schema and models to include 'aur' as a valid repository type alongside 'official' and 'third-party'
- Added repository filter UI in package browser for Arch platform to distinguish between official and AUR packages
- Enhanced init-db script with migration system to track and apply schema changes automatically
- Removed debug-packages and test-sync API endpoints no longer needed
- Extracted sync status management into shared lib/sync/status module
- Updated Next.js config to remove deprecated experimental appDir flag
- Added port specification to production start script for consistency
- Added pg and @types/pg dependencies for PostgreSQL integration
- Created database testing and backend initialization scripts
- Changed dev server port to 3002 to avoid conflicts