Give every skill a consistent name/description/version/user-invocable header. Add missing frontmatter to date-time and ship-it; normalize systematic-enumeration name to kebab-case and version to semver.
Functions almost exactly as the readme-sync-audit, but attempts to
identify existing documentation and use that as the "Single Source of
Truth" instead of the README. README will also be updated only when
changes are relevant to the README layout/content.