3db49413ff
- Fix lint errors: trailing whitespace and deprecated typing imports - Update test mock for o3-pro response format (output.content[] → output_text) - Implement robust test isolation with monkeypatch fixture - Clear provider registry cache to prevent test interference - Ensure o3-pro tests pass in both individual and full suite execution 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>