CHW-4807 QuarantineArtifactsNotFound
no cached artifacts found for this package version; nothing to quarantine
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Default message: no cached artifacts found for this package version; nothing to quarantine
HTTP status:404(client)
Problem. Quarantine action returned without removing anything
because no artifacts were discovered. Cause. Neither the index
cache nor a backend re-scan found cached artifacts for the given
coordinate. Fix. Confirm the package/version exists in the
repository (e.g. via GET .../packages/{pkg}), and that the storage
backend can still resolve its artifacts. HTTP 404.