- Revised the `.env.example` file to clarify the purpose of the `MINI_APP_SKIP_AUTH` variable, emphasizing its insecure nature and restriction to development use only.
- Updated the `README.md` to reflect changes in API authentication requirements, specifying that unauthenticated access to `/api/duties` and `/api/calendar-events` is only allowed with `MINI_APP_SKIP_AUTH=1`.
- Enhanced `configuration.md` to detail the implications of using `MINI_APP_SKIP_AUTH` for API access without Telegram initData.
- Removed the `_is_private_client` function and its associated tests, streamlining the codebase and focusing on the current authentication model.
- Added logging in `run.py` to warn when `MINI_APP_SKIP_AUTH` is enabled, highlighting the security risks.
- Upgraded `pytest-asyncio` to version 1.0 to ensure compatibility with the latest features and improvements.
- Increased the coverage threshold in pytest configuration to 80%, enhancing the quality assurance process.
- Added a new `conftest.py` file to manage shared fixtures and improve test organization.
- Introduced multiple new test files to cover various components, ensuring comprehensive test coverage across the application.
- Updated the `.coverage` file to reflect the latest coverage metrics.
