v1.1.0

Jellyfin support.

• Jellyfin as alternative media server (opt-in via --jellyfin flag or MEDIA_SERVER=jellyfin in .env)
• Runs in Docker via Compose profiles (doesn't start unless opted in)
• Seerr auto-configuration for both Plex and Jellyfin auth
• Health checks and doctor script support Jellyfin
• Default remains Plex — zero changes to existing Plex behavior