Development record

The brief at .abcd/development/brief/04-surfaces/04-launch.md:496 and :501 says the patch tier covers 'a release with no intent-tied change' and that a change not tied to any intent falls back to conventional-commit derivation. Nothing in the shipped tree derives a version from conventional commits: the version comes from the records' declared impact (internal/core/changelog/impact.go), and a cut with nothing user-facing is refused as empty-cut (internal/core/release/emit.go:120).