Refactored the multiplayer room creation and user management endpoints in lio.py for improved modularity and validation. Added helper functions for user, room, and playlist validation, and enhanced error handling. In auth.py, added logging to output generated JWT tokens for better traceability.
Introduces a password field to the Room model and database schema, enabling password-protected multiplayer rooms. Adds LIO router endpoints for room creation, user join/leave, and updates related imports and router registrations.
