fix: preserve authenticated HLS session redirects

web/app.js

@@ -65,7 +65,12 @@ function renderLive() {
     video.onerror=()=>error('浏览器无法解码此码流。可尝试切换清晰度，或将摄像头设为 H.264。');
     if (window.Hls?.isSupported()) {
       const hls = new Hls({maxBufferLength:10,backBufferLength:5,liveSyncDurationCount:3,manifestLoadingMaxRetry:2,levelLoadingMaxRetry:2});
-      hls.on(Hls.Events.ERROR,(_,data)=>{if(data.fatal){error('画面暂未接通，请检查设备账号、路径、网络或编码。点击刷新状态可重试。');hls.destroy();}});
+      hls.on(Hls.Events.ERROR,(_,data)=>{if(data.fatal){
+        const codecError = /codec|bufferAddCodec|manifestIncompatible/i.test(data.details || '');
+        error(codecError ? '浏览器不支持当前视频编码，需要服务器提供兼容码流。' : '画面加载失败（'+(data.details || data.type)+'）。点击刷新状态可重试。');
+        console.warn('Video playback failed', c.id, data.type, data.details);
+        hls.destroy();
+      }});
       hls.on(Hls.Events.MANIFEST_PARSED,()=>video.play().catch(()=>{}));
       hls.loadSource(src);hls.attachMedia(video);players.push(hls);
     } else if (video.canPlayType('application/vnd.apple.mpegurl')) {video.src=src;video.play().catch(()=>{});}