Fixes
- Adding a Jellyfin server now works on Jellyfin 12 (and 10.11+). Previously, authentication appeared to succeed but the app then hit
401 Unauthorizedon every request — it couldn't read/System/Infoor fetch your libraries. The app now sends the modern authorization header Jellyfin 12 requires, while staying compatible with Emby and older Jellyfin versions. (#282)