Docstrings and comments were handled in #2134.

Around 1000 fixes will be required, mainly string adjustments.

1. Update line-length in pyproject.toml to 79.
2. Auto-format as much as we can:

   uv run ruff format src tests .github/scripts doc/scripts
   

3. Run tox -e lint or

   uv run ruff check src tests .github/scripts doc/scripts --output-format=concise
   

   and manually the remaining errors. The concise format can be helpful when running in the VS Code terminal to loop over errors.