- Change from in-memory database to file-based SQLite at coordinator.db
- Remove create_db_and_tables() call as tables already exist
- Use same database path as coordinator-api for consistency
- Apply database path fix to both cleanup_fake_gpus() and show_remaining_gpus()
- Change database from in-memory to file-based SQLite at aitbc_coordinator.db
- Add status="active" to GPU booking creation
- Allow GPU release even when not properly booked (cleanup case)
- Add error handling for missing booking attributes during refund calculation
- Fix get_gpu_reviews query to use scalars() for proper result handling