Stream auf 60 FPS + 8 Mbps Bitrate angehoben

- getDisplayMedia: frameRate ideal 60, 1920x1080
- WebRTC Sender: maxFramerate 60, maxBitrate 8 Mbps pro Viewer-PC

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

web/src/plugins/streaming/StreamingTab.tsx

@@ -197,6 +197,18 @@ export default function StreamingTab({ data }: { data: any }) {
           }
         };
 
+        // Boost encoding: 60 fps + higher bitrate for smooth video
+        const videoSender = pc.getSenders().find(s => s.track?.kind === 'video');
+        if (videoSender) {
+          const params = videoSender.getParameters();
+          if (!params.encodings || params.encodings.length === 0) {
+            params.encodings = [{}];
+          }
+          params.encodings[0].maxFramerate = 60;
+          params.encodings[0].maxBitrate = 8_000_000; // 8 Mbps
+          videoSender.setParameters(params).catch(() => {});
+        }
+
         // Single offer (no onnegotiationneeded — tracks already added above)
         pc.createOffer()
           .then(offer => pc.setLocalDescription(offer))
@@ -350,7 +362,7 @@ export default function StreamingTab({ data }: { data: any }) {
 
     try {
       const stream = await navigator.mediaDevices.getDisplayMedia({
-        video: true,
+        video: { frameRate: { ideal: 60 }, width: { ideal: 1920 }, height: { ideal: 1080 } },
         audio: true,
       });
       localStreamRef.current = stream;