Previously, ApproveUpdate logged mint_skipped for dnf/apt because
computeAndStorePackageHash returns empty (server cannot download those
artifacts). But the agent already resolved and reported the full closure
with per-artifact hashes via ReportDependencies → pinReportedClosure.
Now when artifactHash is empty, the handler calls mintResolvedClosure
which reads the stored closure from the dry-run phase. Server-fetched
ecosystems (npm/pypi) use the existing artifactHash path unchanged.
3448c4c990