feat: trigger local notification directly from incoming WebSocket new_message event

whatsapp_app/lib/services/whatsapp_service.dart

@@ -3,6 +3,7 @@ import 'dart:convert';
 import 'package:get/get.dart';
 import 'package:web_socket_channel/web_socket_channel.dart';
 import '../config/app_config.dart';
+import 'firebase_service.dart';
 
 enum WsStatus { disconnected, connecting, connected, waReady }
 
@@ -93,7 +94,28 @@ class WhatsAppService extends GetxService {
 
     // Push events
     switch (type) {
+      case 'new_message':
+        // Trigger a local notification if the app is open (WebSocket connected)
+        final chatId = data['chatId'];
+        final msgData = data['data'];
+        if (msgData != null && msgData['fromMe'] != true) {
+          String body = msgData['body'] ?? '';
+          if (body.isEmpty && msgData['hasMedia'] == true) {
+             body = '📷 Media/Audio message';
+          }
+          try {
+            Get.find<FirebaseService>().showLocalNotificationFromData({
+              'chatId': chatId,
+              'name': chatId?.split('@')[0] ?? 'WhatsApp',
+              'body': body,
+            });
+          } catch (e) {
+            print('[LOCAL NOTIF ERROR] $e');
+          }
+        }
+        break;
       case 'qr':
+
         qrData.value = data['qr'];
         isWaReady.value = false;
         if (status.value == WsStatus.waReady) {