Convert The Spire Reborn

Cross-platform desktop and Android app for downloading media in 4K/8K from 1,800+ sites, now at v13.2.1. Built with Flutter/Dart, integrates yt-dlp with self-healing downloads (auto yt-dlp updates plus a bundled Deno JS runtime and multi-client fallback), BitPlayer torrent support, a unified Downloads Inbox, and an encrypted vault. v13.2.1 finally fully fixes downloads on low-end hardware (verified 800 downloads, 10 consecutive active). 1k+ downloads worldwide.