Preserve npm install selectors while recording resolved npm provenance for plugin and hook install/update records. Active `record.spec` stays the requested selector unless explicitly pinned, while resolved npm fields remain available for audit and diagnostics.
Adds focused coverage for hook-pack npm fallback provenance after the maintainer review found that path worth pinning down.
Co-authored-by: Phil <99397913+GitHoubi@users.noreply.github.com>
