Gitmoji + Conventional Commits

<gitmoji> <type>[optional scope][!]: <description>

✨ feat(api): add OAuth login support
🐛 fix(auth): handle expired refresh tokens
♻️ refactor(cache): extract eviction policy

The shape, the breaking-change signals, revert form, footers, SemVer mapping and PR-title rules are in references/commit-format.md. check_commit_msg.py enforces the commit-message half of that; PR titles are unchecked — it reads message files, literal messages and commit ranges, and a title never passes through it. Load the reference when writing either. What follows is the part no check can decide for you.

Pick the dominant type