feat(window): Add app window management with minimize, restore, and icon support

web/src/apps/VideoPlayer/index.ts

@@ -4,6 +4,7 @@ import { VideoPlayerApp } from './VideoPlayer.tsx';
 export const descriptor: AppDescriptor = {
   key: 'video-player',
   name: '视频播放器',
+  iconUrl: 'https://api.iconify.design/mdi:video.svg',
   supported: (entry) => {
     if (entry.is_dir) return false;
     const ext = entry.name.split('.').pop()?.toLowerCase() || '';
@@ -12,4 +13,4 @@ export const descriptor: AppDescriptor = {
   component: VideoPlayerApp,
   default: true,
   defaultBounds: { width: 960, height: 600, x: 180, y: 120 }
-};
+};