feat(dl): online track search and add-to-queue utility

src/lib/services/deezer.ts

@@ -250,6 +250,35 @@ export class DeezerAPI {
     return this.apiCall('song.getData', { SNG_ID: trackId });
   }
 
+  // Search tracks using public API (no authentication required)
+  async searchTracks(query: string, limit: number = 25): Promise<any> {
+    const url = `https://api.deezer.com/search/track?q=${encodeURIComponent(query)}&limit=${limit}`;
+
+    console.log('[DEBUG] Searching Deezer API:', { query, limit, url });
+
+    try {
+      const response = await fetch(url, {
+        method: 'GET',
+        headers: {
+          ...this.httpHeaders
+        },
+        connectTimeout: 30000
+      });
+
+      if (!response.ok) {
+        throw new Error(`HTTP error! status: ${response.status}`);
+      }
+
+      const result = await response.json();
+      console.log('[DEBUG] Search results:', result);
+
+      return result;
+    } catch (error: any) {
+      console.error('[ERROR] Search failed:', error);
+      throw error;
+    }
+  }
+
   // Get playlist data
   async getPlaylist(playlistId: string): Promise<any> {
     return this.apiCall('deezer.pagePlaylist', {