Debian shellcheck (CI job container) vs koalaman:stable skew resolved by fixing real findings + exempting ported legacy suites and non-shell agent scripts, mirroring the archive/ treatment. https://projects.knownelement.com/issues/784
Split per O&M lane work order. Full history: KNEL/PFVCluster. https://projects.knownelement.com/issues/769#note-4152