New nixpkgs defaults for the *arr services set UMask=0022, which
conflicts with the media-group-writable overrides. Wrap with
lib.mkForce alongside the existing Jellyfin fix.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Sonarr, Radarr, qBittorrent, Jellyfin, and Bazarr all need to create
files that are writable by the media group. Without this, Jellyfin
can't write thumbnails/artwork to media directories and services
can't collaborate on shared files. Also fixes radarr movies directory
to use setgid (2775) consistently.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
