feat: Add Firebase configuration for staging and development environments

- Created google-services.json for staging environment.
- Updated firebase.json to include build configurations for dev and staging.
- Added flutterfire-config.sh script to generate Firebase configuration files.
- Modified Xcode project to include GoogleService-Info.plist for staging.
- Created staging.xcscheme for Xcode build configuration.
- Added GoogleService-Info.plist for dev and staging flavors.
- Generated firebase_options_dev.dart and firebase_options_staging.dart for Firebase initialization.

mobile-apps/client-app/lib/firebase_options_dev.dart

@@ -0,0 +1,69 @@
+// File generated by FlutterFire CLI.
+// ignore_for_file: type=lint
+import 'package:firebase_core/firebase_core.dart' show FirebaseOptions;
+import 'package:flutter/foundation.dart'
+    show defaultTargetPlatform, kIsWeb, TargetPlatform;
+
+/// Default [FirebaseOptions] for use with your Firebase apps.
+///
+/// Example:
+/// ```dart
+/// import 'firebase_options_dev.dart';
+/// // ...
+/// await Firebase.initializeApp(
+///   options: DefaultFirebaseOptions.currentPlatform,
+/// );
+/// ```
+class DefaultFirebaseOptions {
+  static FirebaseOptions get currentPlatform {
+    if (kIsWeb) {
+      throw UnsupportedError(
+        'DefaultFirebaseOptions have not been configured for web - '
+        'you can reconfigure this by running the FlutterFire CLI again.',
+      );
+    }
+    switch (defaultTargetPlatform) {
+      case TargetPlatform.android:
+        return android;
+      case TargetPlatform.iOS:
+        return ios;
+      case TargetPlatform.macOS:
+        throw UnsupportedError(
+          'DefaultFirebaseOptions have not been configured for macos - '
+          'you can reconfigure this by running the FlutterFire CLI again.',
+        );
+      case TargetPlatform.windows:
+        throw UnsupportedError(
+          'DefaultFirebaseOptions have not been configured for windows - '
+          'you can reconfigure this by running the FlutterFire CLI again.',
+        );
+      case TargetPlatform.linux:
+        throw UnsupportedError(
+          'DefaultFirebaseOptions have not been configured for linux - '
+          'you can reconfigure this by running the FlutterFire CLI again.',
+        );
+      default:
+        throw UnsupportedError(
+          'DefaultFirebaseOptions are not supported for this platform.',
+        );
+    }
+  }
+
+  static const FirebaseOptions android = FirebaseOptions(
+    apiKey: 'AIzaSyDBYhflhK6DThKnS7RM-9raKdvyKzLUjY4',
+    appId: '1:933560802882:android:edcddb83ea4bbb517757db',
+    messagingSenderId: '933560802882',
+    projectId: 'krow-workforce-dev',
+    storageBucket: 'krow-workforce-dev.firebasestorage.app',
+  );
+
+  static const FirebaseOptions ios = FirebaseOptions(
+    apiKey: 'AIzaSyDyEXkzZAWpXXe4dAesYaZflt5BEtMn9tA',
+    appId: '1:933560802882:ios:7f0632ecbeff8f027757db',
+    messagingSenderId: '933560802882',
+    projectId: 'krow-workforce-dev',
+    storageBucket: 'krow-workforce-dev.firebasestorage.app',
+    iosClientId: '933560802882-ml2526jqnnsteent4i9li50c00hisoge.apps.googleusercontent.com',
+    iosBundleId: 'com.krow.app.business.dev',
+  );
+}

mobile-apps/client-app/lib/firebase_options_staging.dart

@@ -0,0 +1,68 @@
+// File generated by FlutterFire CLI.
+// ignore_for_file: type=lint
+import 'package:firebase_core/firebase_core.dart' show FirebaseOptions;
+import 'package:flutter/foundation.dart'
+    show defaultTargetPlatform, kIsWeb, TargetPlatform;
+
+/// Default [FirebaseOptions] for use with your Firebase apps.
+///
+/// Example:
+/// ```dart
+/// import 'firebase_options_staging.dart';
+/// // ...
+/// await Firebase.initializeApp(
+///   options: DefaultFirebaseOptions.currentPlatform,
+/// );
+/// ```
+class DefaultFirebaseOptions {
+  static FirebaseOptions get currentPlatform {
+    if (kIsWeb) {
+      throw UnsupportedError(
+        'DefaultFirebaseOptions have not been configured for web - '
+        'you can reconfigure this by running the FlutterFire CLI again.',
+      );
+    }
+    switch (defaultTargetPlatform) {
+      case TargetPlatform.android:
+        return android;
+      case TargetPlatform.iOS:
+        return ios;
+      case TargetPlatform.macOS:
+        throw UnsupportedError(
+          'DefaultFirebaseOptions have not been configured for macos - '
+          'you can reconfigure this by running the FlutterFire CLI again.',
+        );
+      case TargetPlatform.windows:
+        throw UnsupportedError(
+          'DefaultFirebaseOptions have not been configured for windows - '
+          'you can reconfigure this by running the FlutterFire CLI again.',
+        );
+      case TargetPlatform.linux:
+        throw UnsupportedError(
+          'DefaultFirebaseOptions have not been configured for linux - '
+          'you can reconfigure this by running the FlutterFire CLI again.',
+        );
+      default:
+        throw UnsupportedError(
+          'DefaultFirebaseOptions are not supported for this platform.',
+        );
+    }
+  }
+
+  static const FirebaseOptions android = FirebaseOptions(
+    apiKey: 'AIzaSyAZ4dOatvf3ZBt4qnbSlIvJ51bblHaRsRw',
+    appId: '1:1032971403708:android:d35f6d13a9e03bcb356bb9',
+    messagingSenderId: '1032971403708',
+    projectId: 'krow-workforce-staging',
+    storageBucket: 'krow-workforce-staging.firebasestorage.app',
+  );
+
+  static const FirebaseOptions ios = FirebaseOptions(
+    apiKey: 'AIzaSyCgTXI3QhbEK3r4J5y7ek_6AxqhmR99QjY',
+    appId: '1:1032971403708:ios:b1a21a7337a268b3356bb9',
+    messagingSenderId: '1032971403708',
+    projectId: 'krow-workforce-staging',
+    storageBucket: 'krow-workforce-staging.firebasestorage.app',
+    iosBundleId: 'com.krow.app.business.staging',
+  );
+}