multimux 0.5.2

Multi-input (RTSP/RTP/TS-UDP/TS-HTTP/SRT/HLS-pull/DASH-pull/Smooth-pull/RTMP), multi-output (LL-HLS/DASH/LL-DASH) just-in-time repackaging HTTP origin (library: tokio + axum), with shared output auth and an external scheme plugin registry.