build: add pre-commit hooks

[mtth]

Also switch to ruff.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.72%. Comparing base (4d3aea8) to head (c0b0dba).

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #54   +/-   ##
=======================================
  Coverage   92.72%   92.72%           
=======================================
  Files           9        9           
  Lines         591      591           
  Branches       50       50           
=======================================
  Hits          548      548           
  Misses         28       28           
  Partials       15       15           

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