add firebase

android/app/build.gradle

@@ -27,6 +27,9 @@ if (keystorePropertiesFile.exists()) {
     keystoreProperties.load(new FileInputStream(keystorePropertiesFile))
 }
 apply plugin: 'com.android.application'
+// START: FlutterFire Configuration
+apply plugin: 'com.google.gms.google-services'
+// END: FlutterFire Configuration
 apply plugin: 'kotlin-android'
 apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
 

android/app/google-services.json

@@ -0,0 +1,39 @@
+{
+  "project_info": {
+    "project_number": "372003342382",
+    "project_id": "hiddify-flutter",
+    "storage_bucket": "hiddify-flutter.appspot.com"
+  },
+  "client": [
+    {
+      "client_info": {
+        "mobilesdk_app_id": "1:372003342382:android:c33c6eb99da7ceb76fb7bf",
+        "android_client_info": {
+          "package_name": "app.hiddify.com"
+        }
+      },
+      "oauth_client": [
+        {
+          "client_id": "372003342382-hlkjtgug97q8melqpkvat5f9mi7nj3s8.apps.googleusercontent.com",
+          "client_type": 3
+        }
+      ],
+      "api_key": [
+        {
+          "current_key": "AIzaSyDhiPAfkcUkQKcNXCUUcKL51K5UqRd7WXA"
+        }
+      ],
+      "services": {
+        "appinvite_service": {
+          "other_platform_oauth_client": [
+            {
+              "client_id": "372003342382-hlkjtgug97q8melqpkvat5f9mi7nj3s8.apps.googleusercontent.com",
+              "client_type": 3
+            }
+          ]
+        }
+      }
+    }
+  ],
+  "configuration_version": "1"
+}