Reaparr releases

Fixed 20+ issues including downloads stuck in queue, memory leaks, Radarr/Sonarr deauthentication on restart, documentation links, and strict MessagePack parsing for download patches.

Fixed qBittorrent integration alignment, library sync hangs from O(n×m) complexity, qBittorrent v2 polling payloads, download URL parameters, and torrent delete regression.

Fixed 18+ critical bugs including timeout protection on pause operations, auth token validation, memory leaks, threading issues with DbContext, and multiple UI rendering problems.