- Updated cache tests to use the testify assertion library for improved readability and maintainability.
- Added new tests for cache operations including basic functionality, LRU eviction, removal, clearing, and concurrent access.
- Enhanced the cache implementation to unregister scripts upon removal and clearing, ensuring proper resource management.
- Introduced an `All` method to retrieve all assistants in the cache, improving accessibility of cached items.
- Streamlined the script registration and unregistration process within the Assistant struct, enhancing script management.
