## Summary
This PR adds a comment-triggered GitHub Actions workflow that allows
running pre-commit hooks on-demand for any pull request. When someone
comments `@github-actions run precommit` on a PR, the bot automatically
runs all pre-commit hooks and commits any formatting or linting fixes
directly to the PR branch.
The implementation uses a secure two-workflow approach: a trigger
workflow validates permissions and dispatches to an execution workflow
that runs pre-commit in a privileged context. This works safely for both
same-repo and fork PRs, with permission checks ensuring only PR authors
or repository collaborators can trigger the bot.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-authored-by: Claude <noreply@anthropic.com>
