- Add comprehensive unit tests for SettingsService, covering global and project settings management, including creation, updates, and merging with defaults.
- Implement tests for handling credentials, ensuring proper masking and merging of API keys.
- Introduce tests for migration from localStorage, validating successful data transfer and error handling.
- Enhance error handling in subprocess management tests, ensuring robust timeout and output reading scenarios.
- Added tests to ensure mkdirSafe handles ELOOP and EEXIST errors gracefully.
- Implemented checks for existsSafe to return true for ELOOP errors and throw for other errors.
- Improved overall robustness of filesystem utility tests.
