Replaces ambiguous shorthand references like `event` and `user` with more descriptive names such as `event_crud` and `user_crud`. Updates imports, function calls, tests, and other references across the codebase to maintain consistency. This improves code readability and reduces potential confusion.
Implemented user CRUD operations including creation, retrieval, updating, and deletion through a generic CRUD base class. Enhanced user schemas with additional attributes and created tests to verify functionality, covering edge cases such as duplicates and pagination. Updated the test suite with new fixtures and methods to support the tests.
