debug: add IPC logging from capture window to main process

Capture window logs now forwarded to main process via IPC to diagnose
why video tracks are missing from the WebRTC answer SDP.

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

lib/remote-capture-preload.js

@@ -16,5 +16,8 @@ contextBridge.exposeInMainWorld('capture', {
   sendInput: (data) => ipcRenderer.send('remote:input-event', data),
 
   // Notify main process of client connection/disconnection
-  notifyClientCount: (count) => ipcRenderer.send('remote:client-count', count)
+  notifyClientCount: (count) => ipcRenderer.send('remote:client-count', count),
+
+  // Debug logging to main process
+  log: (...args) => ipcRenderer.send('remote:capture-log', args.join(' '))
 });

lib/remote-capture.html

@@ -12,8 +12,10 @@ async function getCaptureStream() {
 
   // desktopCapturer runs in main process (Electron 33+), we get the source ID via IPC
   const sourceId = await window.capture.getSourceId();
+  window.capture.log('getSourceId returned:', sourceId || 'NULL');
   if (!sourceId) throw new Error('No capture source ID from main process');
 
+  try {
     captureStream = await navigator.mediaDevices.getUserMedia({
       audio: false,
       video: {
@@ -28,10 +30,17 @@ async function getCaptureStream() {
         }
       }
     });
+    const tracks = captureStream.getTracks();
+    window.capture.log('getUserMedia OK, tracks:', tracks.length, tracks.map(t => `${t.kind}:${t.readyState}`).join(','));
     return captureStream;
+  } catch (err) {
+    window.capture.log('getUserMedia FAILED:', err.message);
+    throw err;
+  }
 }
 
 async function handleOffer(clientId, offer, role) {
+  window.capture.log('handleOffer called for', clientId);
   const stream = await getCaptureStream();
 
   const pc = new RTCPeerConnection({
@@ -40,9 +49,12 @@ async function handleOffer(clientId, offer, role) {
   clients.set(clientId, { pc, role });
 
   // Add video tracks
-  for (const track of stream.getTracks()) {
+  const tracks = stream.getTracks();
+  window.capture.log('Adding', tracks.length, 'tracks to peer connection');
+  for (const track of tracks) {
     pc.addTrack(track, stream);
   }
+  window.capture.log('Senders after addTrack:', pc.getSenders().length);
 
   // Handle DataChannel from dashboard (dashboard creates it as offerer)
   pc.ondatachannel = (event) => {

main.js

@@ -1009,6 +1009,11 @@ ipcMain.on('remote:signaling-from-capture', (_event, data) => {
   }
 });
 
+// IPC: Debug logging from capture window
+ipcMain.on('remote:capture-log', (_event, msg) => {
+  debugLog('remote-capture:', msg);
+});
+
 // IPC: Input events from capture window
 ipcMain.on('remote:input-event', (_event, data) => {
   if (!mainWindow || mainWindow.isDestroyed()) return;

package.json

@@ -1,6 +1,6 @@
 {
   "name": "multi-hoster-uploader",
-  "version": "2.1.4",
+  "version": "2.1.5",
   "description": "Upload files to doodstream, voe, vidmoly, byse simultaneously",
   "main": "main.js",
   "scripts": {