docs(jellyfin): record the live view bind and the library-coverage law

The page still described the pre-cutover generation ("the live unit is
still pre-view", "/mnt/entropy -> /data (live today, read-only)") after
the 2026-10-31 cutover deployed the overlay. Corrected, and added the law
the census tonight taught: Jellyfin's four libraries cover /data/Movies,
TVShows, Music and the collections dir, so anything under /data/media-park
is invisible by configuration — a recursive refresh there returns 204 and
indexes nothing. Check coverage before re-scanning.

serverAppConfigs-docs/Dankserver/Jellyfin.md

@@ -18,7 +18,7 @@ clients.
 public vhost `jelly.franksdank.cloud` behind the [[Anubis]] guard chain →
 [[Authentik]] outpost (post-auth route proxies `localhost:8096`).
 
-## Facts (the repo quadlet; the live unit is still the pre-view generation — see Data layout)
+## Facts (the repo quadlet — deployed as the live unit on 2026-10-31)
 
 | Item | Value |
 |------|-------|
@@ -26,7 +26,7 @@ public vhost `jelly.franksdank.cloud` behind the [[Anubis]] guard chain →
 | Image | `ghcr.io/jellyfin/jellyfin:latest` |
 | Network | `dankserver_appnet`; publishes 8096/tcp, 8920/tcp, 7359/udp, 1900/udp |
 | Data roots | `/home/dank/Containers/jellyfin/config:/config`, `/home/dank/Containers/jellyfin/cache:/cache` |
-| Media | `Volume=/var/lib/media-meta/view:/data` in git — the [[Media Metadata View]] overlay, **writable**, sidecars land on the NVMe and the [[Entropy Volume]] array underneath stays untouched. **The live unit is still pre-view: `/mnt/entropy:/data:ro`** — nothing is written into the library until the view is deployed |
+| Media | `Volume=/var/lib/media-meta/view:/data` — the [[Media Metadata View]] overlay, **writable**, live since the 2026-10-31 cutover: sidecars land on the NVMe and the [[Entropy Volume]] array underneath stays untouched |
 | GPU | none — no `AddDevice`; CPU decode only (jellyfin-ffmpeg path) |
 | Env quirks | `DOTNET_SYSTEM_IO_DISABLEFILELOCKING=true`, `LD_PRELOAD=libjemalloc.so.2`, `MALLOC_TRIM_THRESHOLD_=131072` kept verbatim from the compose-era container (zero-drift cutover) |
 | Health | `curl -f http://localhost:8096/health` every 30 s |
@@ -37,12 +37,12 @@ public vhost `jelly.franksdank.cloud` behind the [[Anubis]] guard chain →
 /home/dank/Containers/jellyfin/config   -> /config   (JELLYFIN_DATA_DIR)
 /home/dank/Containers/jellyfin/cache    -> /cache    (JELLYFIN_CACHE_DIR, XDG_CACHE_HOME)
 /var/lib/media-meta/view                -> /data     (git: the overlay view)
-/mnt/entropy                             -> /data     (live today: the array, read-only)
+/mnt/entropy                             -> /data     (the overlay's lower layer; also the rollback bind)
 ```
 
 Library folders point at `/data` paths: stable across container recreation and
 identical to the raw array layout below. Which side of that path the container
-is the [[Media Metadata View]] overlay, live since the 2026-10-31 cutover:
+sees is the [[Media Metadata View]] overlay, live since the 2026-10-31 cutover:
 `/var/lib/media-meta/view:/data`, read-write.
 
 `Local metadata` — save metadata to media folders — is enabled, and it is the
@@ -51,6 +51,15 @@ written once on the NVMe upper layer are files [[Plex]] can read too — and sin
 the 2026-10-31 cutover that is what happens: Jellyfin is the fleet's only
 metadata writer, and every sidecar it saves is an SSD byte the array never sees.
 
+**Library coverage is the first thing to check when a title is missing.** The
+four libraries are `movies → /data/Movies`, `tvshows → /data/TVShows`,
+`music → /data/Music`, `boxsets → /config/data/collections`
+(`GET /Library/VirtualFolders`). `/data/media-park` is in **none** of them, so
+everything filed under it — the `_unsorted` release bundles and the `extras/`
+folders the relayout wrote there — is invisible to Jellyfin by configuration,
+not by fault: a recursive refresh answers 204, burns CPU for minutes and
+indexes nothing, because it never looks there. Check coverage before re-scanning.
+
 **Failure signature:** `System.IO.IOException: Read-only file system :
 '/data/Movies/<film>/movie.nfo'` means the container is binding the raw array
 instead of the view — always a fault on this host since the 2026-10-31 cutover.