feat: add built-in Tidal/Qobuz search with recommended service picker

- Add SearchAll() for Tidal and Qobuz in Go backend (tracks, artists, albums)
- Add searchTidalAll/searchQobuzAll platform routing for Android and iOS
- Add Tidal/Qobuz options to search provider dropdown in home tab
- Show (Recommended) label and auto-select service in download picker

lib/main.dart

@@ -222,10 +222,12 @@ class _EagerInitializationState extends ConsumerState<_EagerInitialization>
 
     // All checks passed -- start an incremental scan.
     final iosBookmark = settings.localLibraryBookmark;
-    ref.read(localLibraryProvider.notifier).startScan(
-      settings.localLibraryPath,
-      iosBookmark: iosBookmark.isNotEmpty ? iosBookmark : null,
-    );
+    ref
+        .read(localLibraryProvider.notifier)
+        .startScan(
+          settings.localLibraryPath,
+          iosBookmark: iosBookmark.isNotEmpty ? iosBookmark : null,
+        );
   }
 
   Future<void> _initializeAppServices() async {