Switch from pre-commit to prek

[adamtheturtle]

Replace pre-commit with prek for running hooks.

---

Note

Migrates lint hook runner from pre-commit to prek.

• Updates CI to run prek for all hook stages in .github/workflows/ci.yml
• Replaces usage instructions in docs/source/contributing.rst to use prek install and prek run
• Swaps dev dependency pre-commit for prek in pyproject.toml
• Adjusts .pre-commit-config.yaml default_install_hook_types to [pre-commit, pre-push] (removes commit-msg)

^{Written by Cursor Bugbot for commit 6f3678d. This will update automatically on new commits. Configure here.}