- Create shared tests/common.rs with TestEnvironment setup
- Simplify gemini_test_client.py to single-request client
- Refactor config validation tests to use common setup
- Add test_valid_config_startup for complete server validation
- Fix clippy warning in main.rs
- Remove unused code and consolidate test infrastructure
- Update README.md to mention Python 3 requirement for integration tests
- Make rate limiting test skip gracefully if Python 3 is not available
- Move and rename test helper script to tests/gemini_test_client.py
- Update test to use new script path
- Improve test documentation and error handling
