Tonight's sequence, measured: the post-sweep refresh answered 204 while
`Scan Media Library` sat in `Cancelling`, and Jellyfin's stale-path counts froze
for an hour at 0 % CPU — the request was accepted and discarded. Restarting the
user unit cleared the runner; one POST after that reported State `Running` at
130 % CPU and the counts began to move. So the status code is not the evidence,
and the restart is `systemctl --user restart jellyfin.service`, never
`deploy.sh`, which would run the never-tested metadata-view cutover.
Frank
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