* ci: enforce regression tests for fix commits
Add a commit-msg hook and CI workflow that require test changes
alongside bug fix commits, ensuring every fix includes a regression
test that would have caught the bug.
- scripts/commit-msg-regression.sh: local git hook (blocks fix commits
without test changes; exempts static/docs-only; bypass via
[skip-regression-check] marker)
- .github/workflows/regression-test-check.yml: CI mirror on PRs
(checks title + commit messages; skip via label)
- scripts/dev-setup.sh: install hook in step 6
- .github/scripts/create-labels.sh: add skip-regression-check label
- CLAUDE.md: document regression test policy
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* fix: address PR review feedback on regression test enforcement
- Use here-strings instead of echo|grep to avoid misinterpreting
special characters in variables
- Use git diff -W (whole-function context) to detect edits inside
existing test functions, not just new #[test] attributes
- Honor [skip-regression-check] in commit messages in CI (not just
the PR label)
- Use git rev-parse --git-path hooks for worktree-safe hook install
[skip-regression-check]
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* Update .github/workflows/regression-test-check.yml
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
---------
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
