Both media servers' scan procedure lived only as a hand-written curl block in
the vault, and that block has bitten this fleet twice: the escaped-quote form
that reads exactly like a dead API key, and a config `url` line meeting a
command-line URL so curl quietly performs a second transfer and dumps the whole
task table on your stdout. Jellyfin's door is now
`scripts/media-refresh-jellyfin.py` (trigger / status / wait) and Plex's is
`scripts/media-refresh-plex.sh` (trigger / status);
`tests/media_refresh.bats` pins the contracts an operator observes, against a
stub and with no live server.
The Jellyfin `wait` encodes the settle law instead of a poll count: the Scan
Media Library task must be seen Running — or finish while watching, or already
pass the `--after` it is given — before any quiet read counts toward settled.
A watcher that saw no Running otherwise reports the pre-scan library as the
fresh one, which is how a rename looks applied while nothing has rescanned.
Plex's `status` needs no token at all: `section_locations.scanned_at` carries
the same epoch the API prints as `scannedAt` (measured on section 1 today).
Neither driver lets a secret reach argv or a URL: the Jellyfin key rides a
mode-600 curl config as the quoted MediaBrowser form, and the Plex token is
read inside the container, where the HTTPD actually answers, into a config file
that is shredded there.
