jellyfin, extracted into plugins/jellyfin — the platform half

Eighth extraction, second resurrection. Same shape as soulseek: hono.ts had the
router import and its PROTECTED_MOUNTS entry commented out since 2026-08-13 and
the permission reduced to api: [], so assertPermissionTotality was satisfied,
the server booted clean, and every panel request 404'd. Also closes the same
data hazard — jellyfin_servers was absent from the drizzle barrel, so bun
db:push would have dropped it.

No frontend call site needed repointing: mountPrefix derives /jellyfin from the
appName, which is what the router already hardcoded.

Test fixtures fixed properly rather than re-anchored again. Extracting jellyfin
broke 18 tests, the FOURTH extraction in a row to break the same files — photos
and transmission yesterday, slskd an hour ago, jellyfin now. installer.test.ts
now builds literal CatalogueEntry fixtures and asks the catalogue nothing: it
pins planSteps and runInstall, which are installer logic, and a service leaving
for plugins/ says nothing about whether the installer still plans the right
steps. catalogue.test.ts stays the place real entries are checked well-formed.
members/catalogue/preflight re-anchored to memos, which has jellyfin's exact
shape.

The .prettierignore rule for the vendored hls.mjs moved into the plugin rather
than being left behind naming a deleted path.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

src/servers/plugins/marketplace.ts

@@ -170,6 +170,27 @@ const BUNDLED: CatalogueEntry[] = [
     // favourites and the cached browse tree are this plugin's own three tables.
     has: { api: true, schema: true, sidecar: true, web: true },
   },
+  {
+    appName: 'jellyfin',
+    publisher: 'officerdev',
+    version: '1.0.0',
+    platform: '>=1.0.0',
+    label: 'Video',
+    summary: 'Films and shows, with a player that handles direct, HLS and progressive',
+    color: '#a855f7',
+    icon: 'Clapperboard',
+    source: 'https://gitea.officer.dev/plugins/jellyfin.git',
+    permissions: [
+      {
+        key: 'jellyfin',
+        label: 'Video',
+        description: 'Browse and play the Jellyfin library',
+      },
+    ],
+    // Fully self-contained: `jellyfin_servers` is a registry this plugin owns outright, because more
+    // than one Jellyfin is a thing someone has.
+    has: { api: true, schema: true, sidecar: true, web: true },
+  },
   {
     appName: 'vault',
     publisher: 'officerdev',