Add Python linting

[jairus-m]

Summary

I want my Python code to be listed, standardized, and to follow PEP8. One exception is creating standard docstrings since Dagster assets are not utilized in the same way as traditional Python functions.

Details

• Use Astral's ruff and add to uv dev deps
  • https://github.com/astral-sh/ruff
• Current linting implementation is locally only
• TODO:
  • Automate lint/formatting checks in CI