Migrate from Poetry to uv for Python package management

[jeffabailey]

• Convert pyproject.toml to modern PEP 621 format using setuptools backend
• Update GitHub Actions workflow to use astral-sh/setup-uv action
• Replace all Poetry commands with uv equivalents (sync, run)
• Update documentation in TESTING.md and README.md
• Remove poetry.lock and add uv.lock

This migration improves dependency resolution speed and aligns with modern Python packaging standards while maintaining full compatibility.

🤖 Generated with Claude Code

Description

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation update
• Test coverage improvement
• Code refactoring

Testing

Tests Added/Modified

• Added unit tests for new functionality
• Updated existing tests to reflect changes
• All tests pass locally
• Test coverage meets or exceeds 80% threshold (for JavaScript)

Test Commands Run

# Add the commands you ran to test your changes
# Example:
# cd programming/python && pytest --cov

Coverage

• Coverage reports have been reviewed
• No decrease in overall coverage
• New code has appropriate test coverage

Checklist

• My code follows the project's style guidelines
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published

Related Issues

Closes #

Additional Notes