Commit Message Under 72 Characters

Generate a commit message for these changes.

Changes:
{{changes}}

Constraints:
- Subject line: maximum 72 characters
- Subject must start with type: feat, fix, refactor, docs, test, chore
- Use imperative mood (Add not Added)
- Body: 2-3 bullet points of key changes (optional if change is trivial)
- No period at end of subject
- Blank line between subject and body

Output ONLY the commit message, nothing else.