v1.9.2 — vsd (Rust) HLS engine + all v1.9.0 features

🦀 vsd (Rust) HLS/DASH engine\nPrefer vsd over N_m3u8DL-RE — 27 MB single binary, 5ms startup, machine-readable progress.\nFallback chain: vsd → N_m3u8DL-RE → yt-dlp → ffmpeg.\n\n## 🔄 Download Resume + Retry\nN_m3u8DL-RE with --enable-resume. POST /retry/<id> to re-run failed jobs.\n\n## 🔔 Completion Notifications\nBrowser notification on each completed download.\n\n## 🔬 M3U8 Variant Parsing\nMaster HLS manifests parsed. Collapsible variant rows with resolution, bitrate, codec.\n\n## 📏 File Size + Emoji Icons + Batch Grab All\nContent-Length display, type emoji, Grab All button.\n\n## 🏷 Expanded Types\nMKV, AVI, MOV, WAV, SRT, VTT, ASS — colored badges + filterable.