Add private folder mount to Jellyfin media server

- Mount /home/hoborg/private as /media/private for shared access with copyparty
- Enable read-only access to private media files uploaded via copyparty WebDAV
- Maintain consistency between file server and media server folder access

🤖 Generated with [Claude Code](https://claude.ai/code)

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

config/docker/jellyfin/docker-compose.yml

@@ -2,8 +2,6 @@
 # Deploy with: sudo mkdir -p /opt/docker/jellyfin && sudo cp config/docker/jellyfin/docker-compose.yml /opt/docker/jellyfin/
 # Start with: cd /opt/docker/jellyfin && sudo docker-compose up -d
 
-version: "3.8"
-
 services:
   jellyfin:
     image: jellyfin/jellyfin:latest
@@ -29,7 +27,9 @@ services:
       # Media folders (shared with Copyparty)
       - /home/hoborg/Music:/media/music:ro
       - /home/hoborg/Videos:/media/videos:ro
+      - /home/hoborg/Pictures:/media/pictures:ro
       - /home/hoborg/shared:/media/shared:ro
+      - /home/hoborg/private:/media/private:ro
 
       # Additional media folders if they exist
       # - /home/hoborg/Movies:/media/movies:ro