Introduced extensive test cases to validate `EventTheme` schemas, ensuring proper handling of valid and invalid inputs, optional fields, and partial updates. Enhanced schema validation by adding constraints for `name`, `color_palette`, and `fonts` fields, as well as updating `id` to use `UUID` type for consistency. These changes improve data integrity and increase confidence in schema-related functionality.
Introduced CRUD implementation, schema definitions, and tests for EventTheme. This allows creation, retrieval, updating, deletion, and querying of active event themes. Comprehensive tests ensure functionality works as intended, including edge cases for nonexistent themes.
