* feat(tests): add comprehensive unit tests for various utility functions and views
- Implement tests for cache utility to ensure proper behavior with no cache and TTL keys.
- Add tests for common utilities including string manipulation and path handling.
- Introduce tests for directory import functionality to validate file imports and pattern matching.
- Create tests for git hash retrieval to handle fallback scenarios.
- Develop tests for deprecated got utility to verify response handling and retry logic.
- Enhance got utility tests to include request hooks and search parameter handling.
- Mock header generator tests to validate user agent handling.
- Expand helpers tests to cover current path retrieval and duration parsing.
- Implement tests for ofetch utility to ensure proper proxy handling and logging.
- Add OpenTelemetry metric tests to validate metric serialization.
- Create proxy tests to verify multi-proxy selection and failure handling.
- Introduce request rewriter tests to validate fetch and get wrapper functionality.
- Add timezone utility tests to handle various input types.
- Implement view tests for Atom and RSS rendering to ensure correct output.
- Create index view tests to validate debug information display based on configuration.
* refactor: remove deprecated got implementation and associated tests
* test: expand coverage for api, middleware, and utils
