Its folder went in March (44c31cd) but the Argo CD app stayed and kept the
old hensen.io mail server running, with a NodePort for SMTP/IMAP and a
10Gi volume. Mail runs on node001 now and this one logged nothing in three
days. A final Velero backup (stalwart-final-202610220935) keeps its data
until 20 January 2027. The app has no finalizer, so the namespace gets
deleted by hand.