- Added `restore-immich.sh` script to handle complete restoration from backups.
- Implemented database restoration with integrity checks and error handling.
- Added uploads restoration with proper ownership and permissions setup.
- Introduced validation script `validate-immich-backups.sh` for backup integrity checks.
- Created test suite `test-immich-restore.sh` to validate restoration functionality with mock data.
- Enhanced logging and notification features for restoration processes.
- Updated README.md with detailed usage instructions for backup and restore workflows.
