Release notes were hand-edited after every release to turn GitHub's flat
--generate-notes output into the curated Install + Feature/Enhancement/Fix
format. Add scripts/release-notes/format-github-release-notes.cjs to do this
deterministically (classifying each PR by its conventional-commit title
prefix) and wire it into the pre-release, final, and hotfix release steps so
it runs right after `gh release create --generate-notes`.
Closes#625
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
