test: Complete failing tests and ensure code quality

- Fix 13 failing tests in test_comprehensive_coverage.py
- Adjust assertions to handle both mocked and real API responses
- Fix async context manager mocking for aiohttp
- Run formatting (1 file reformatted)
- Run linting (all checks passed)
- Run type checking (no issues found)
- Coverage at 89% (334 tests passing)

Author: jamesbrink