Enhanced test coverage includes `repr` methods, model functionality, and validation logic for key models like `GiftItem`, `GiftCategory`, `EventMedia`, `RSVP`, and `GiftPurchase`. Refactored and added fixtures to support comprehensive testing scenarios. Addresses validation for gift reordering and updates `EventMedia` representation format for consistency.
This commit introduces comprehensive unit tests for the RSVP model, including creation, status updates, attendance checks, unique constraints, and dietary requirements handling. These tests ensure the RSVP model
