fix(commit-work): add missing reference

Author: leonardocouy

skills/commit-work/references/commit-message-template.md

@@ -0,0 +1,13 @@
+# Commit message template (Conventional Commits)
+
+```text
+<type>(<scope>): <summary>
+
+<What changed.>
+<Why it changed.>
+```
+
+Notes:
+- Keep the summary imperative and specific ("Add", "Fix", "Remove", "Refactor").
+- Avoid implementation minutiae; focus on behavior and intent.
+- If breaking: use `!` in header and/or add `BREAKING CHANGE:` footer.