Fix code quality issues and improve consistency
- Fix all ruff linting errors (28 issues resolved)
- Update type annotations to modern Python syntax (Dict -> dict, List -> list)
- Fix exception handling to use proper chaining (raise ... from err)
- Remove whitespace issues and improve formatting
- Add noqa comments for intentional import patterns
- Format all code with ruff formatter for consistency
- Ensure all Python files compile successfully
All code now passes comprehensive quality checks:
- ✅ Zero ruff linting errors
- ✅ Consistent code formatting
- ✅ Modern type annotations
- ✅ Proper exception handling
- ✅ All files compile successfully
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>