feat(youtube): add YouTube embed support with yt-dlp integration for ad-free streaming

src/app/utils/tauri.ts

@@ -34,6 +34,40 @@ export const openExternalUrl = async (url: string): Promise<void> => {
   console.log('[openExternalUrl] falling back to window.open');
   window.open(url, '_blank');
 };
+
+/**
+ * YouTube stream info returned by yt-dlp
+ */
+export interface YouTubeStreamInfo {
+  /** Direct video stream URL */
+  video_url: string;
+  /** Title of the video */
+  title: string;
+}
+
+/**
+ * Get direct YouTube stream URL using yt-dlp
+ * Requires yt-dlp to be installed on the system
+ * @param url The YouTube video URL
+ * @returns Stream info with direct URL and title
+ * @throws If yt-dlp is not installed or fails
+ */
+export const getYouTubeStream = async (url: string): Promise<YouTubeStreamInfo> => {
+  if (typeof window !== 'undefined' && (window as any).__TAURI__) {
+    const { invoke } = await import('@tauri-apps/api/core');
+    return invoke<YouTubeStreamInfo>('get_youtube_stream', { url });
+  }
+  throw new Error('YouTube streaming requires Tauri desktop app with yt-dlp installed');
+};
+
+/**
+ * Check if yt-dlp is available for YouTube streaming
+ * @returns True if yt-dlp streaming is available
+ */
+export const isYouTubeStreamingAvailable = (): boolean => {
+  return typeof window !== 'undefined' && !!(window as any).__TAURI__;
+};
+
 /**
  * Tauri-specific utilities for desktop and mobile platforms
  */