fix(jellyfin): use container-first search and folder drilldown

docs/jellyfin-integration.md

@@ -60,12 +60,18 @@ Launcher wrapper equivalent for interactive playback flow:
 subminer jellyfin -p
 ```
 
-Launcher wrapper for Jellyfin cast discovery mode (foreground app process):
+Launcher wrapper for Jellyfin cast discovery mode (background app + tray):
 
 ```bash
 subminer jellyfin -d
 ```
 
+Stop discovery session/app:
+
+```bash
+subminer app --stop
+```
+
 `subminer jf ...` is an alias for `subminer jellyfin ...`.
 
 To clear saved session credentials:
@@ -80,6 +86,17 @@ subminer jellyfin --logout
 SubMiner.AppImage --jellyfin-items --jellyfin-library-id LIBRARY_ID --jellyfin-search term
 ```
 
+Optional listing controls:
+
+- `--jellyfin-recursive=true|false` (default: true)
+- `--jellyfin-include-item-types=Series,Season,Folder,CollectionFolder,Movie,...`
+
+These are used by the launcher picker flow to:
+
+- keep root search focused on shows/folders/movies (exclude episode rows)
+- browse selected anime/show directories as folder-or-file lists
+- recurse for playable files only after selecting a folder
+
 5. Start playback:
 
 ```bash