chore: remove all Remotion references from Electron main + UI

- Cleaned Electron main.ts: removed Remotion bundle path, compositor path, and predownloadBrowser()
- Set BRADLY_SERVE_URL from Express port for headless rendering
- Cleaned GlobalSettingsPanel: removed Remotion-specific frame capture code
- Removed stale remotion:bundle script from package.json
- Zero Remotion dependencies, imports, or functional code remain

src/components/properties/GlobalSettingsPanel.tsx

@@ -37,29 +37,16 @@ export const GlobalSettingsPanel: React.FC<GlobalSettingsPanelProps> = ({
     const player = playerRef?.current;
     if (!player) return;
     
-    // Find the remotion-player container and grab its inner canvas/iframe
-    const playerContainer = document.querySelector('[data-remotion-player]') ?? document.querySelector('.remotion-player');
+    // Find the BradlyPlayer container and capture its content
+    const playerContainer = document.querySelector('[data-bradly-player]');
     if (!playerContainer) {
-      // Fallback: find the iframe or video element
-      const iframe = document.querySelector('iframe');
-      if (iframe) {
-        // Can't capture cross-origin iframe, but for same-origin:
-        try {
-          const iframeDoc = iframe.contentDocument;
-          if (iframeDoc) {
-            const canvas = document.createElement('canvas');
-            const body = iframeDoc.body;
-            canvas.width = body.scrollWidth;
-            canvas.height = body.scrollHeight;
-            // This is a simplistic approach - Remotion doesn't expose easy screenshot
-          }
-        } catch { /* cross-origin */ }
-      }
+      // Fallback: use the render API endpoint
+      alert('📸 Exportar frame: Usa el botón "Renderizar" con formato PNG para capturar frames.');
+      return;
     }
     
-    // Use html2canvas-like approach: create a temporary canvas from the player
-    // For now, use a simple screenshot via the Remotion player's renderToCanvas
-    alert('📸 Exportar frame: Esta función requiere @remotion/renderer para renderizar frames individuales. Próximamente disponible.');
+    // TODO: Implement canvas-based screenshot from BradlyPlayer viewport
+    alert('📸 Exportar frame: Usa el botón "Renderizar" con formato PNG para capturar frames.');
   }, [playerRef]);
 
   const matchingPresets = EXPORT_PRESETS.filter(p => p.aspect === aspectRatio);

src/electron/main.ts

@@ -4,7 +4,6 @@
  * Responsibilities:
  * - Creates the BrowserWindow
  * - Starts the embedded Express server
- * - Pre-downloads Chrome Headless Shell for Remotion
  * - Manages IPC handlers for native features
  */
 import { app, BrowserWindow, ipcMain, dialog } from 'electron';
@@ -59,33 +58,10 @@ function setupPaths() {
   process.env.BRADLY_UPLOADS_DIR = uploadsDir;
   process.env.BRADLY_RENDERS_DIR = rendersDir;
 
-  // In packaged app, configure Remotion paths
+  // In packaged app, set the serve URL to the embedded Express server
   if (app.isPackaged) {
-    const resourcesPath = process.resourcesPath;
-
-    // Pre-built Remotion bundle (created during packaging)
-    const remotionBundle = path.join(resourcesPath, 'remotion-bundle');
-    if (fs.existsSync(remotionBundle)) {
-      process.env.BRADLY_REMOTION_BUNDLE = remotionBundle;
-    }
-
-    // Compositor binaries (unpacked from asar)
-    const platformMap: Record<string, string> = {
-      darwin: 'darwin',
-      win32: 'win32',
-      linux: 'linux',
-    };
-    const platform = platformMap[process.platform] || process.platform;
-    const arch = process.arch;
-    const compositorPath = path.join(
-      resourcesPath,
-      'app.asar.unpacked',
-      'node_modules',
-      `@remotion/compositor-${platform}-${arch}`,
-    );
-    if (fs.existsSync(compositorPath)) {
-      process.env.BRADLY_BINARIES_DIR = compositorPath;
-    }
+    // BRADLY_SERVE_URL will be set after Express starts
+    // (see startExpressServer)
   }
 
   console.log('📂 User data:', userDataPath);
@@ -274,18 +250,6 @@ function setupIPC() {
   });
 }
 
-// ═══ Remotion Browser Pre-download ═══
-
-async function predownloadBrowser() {
-  try {
-    const { ensureBrowser } = await import('@remotion/renderer');
-    console.log('🌐 Ensuring Chrome Headless Shell is available...');
-    await ensureBrowser();
-    console.log('✅ Chrome Headless Shell ready');
-  } catch (err) {
-    console.warn('⚠️ Failed to pre-download browser (renders may download on first use):', err);
-  }
-}
 
 // ═══ App Lifecycle ═══
 
@@ -305,11 +269,11 @@ app.whenReady().then(async () => {
     return;
   }
 
-  // 4. Create the main window
-  createWindow();
+  // 4. Set BRADLY_SERVE_URL for the renderer to find the app
+  process.env.BRADLY_SERVE_URL = `http://127.0.0.1:${expressPort}`;
 
-  // 5. Pre-download Chrome Headless Shell in background
-  predownloadBrowser();
+  // 5. Create the main window
+  createWindow();
 
   // macOS: re-create window when dock icon is clicked
   app.on('activate', () => {