fix(dispatcher): nginx proxy on port 10002, external URL for Flutter

flutter_asr_client/lib/services/settings_service.dart

@@ -68,7 +68,7 @@ final class SharedPreferencesSettingsService implements SettingsService {
 
   Future<String> getDispatcherUrl() async {
     final prefs = await SharedPreferences.getInstance();
-    return prefs.getString(_dispatcherUrlKey) ?? 'http://200.200.18.11:9100';
+    return prefs.getString(_dispatcherUrlKey) ?? 'http://36.152.142.37:10002';
   }
 
   @override