minor fixes

lib/main.dart

@@ -10,23 +10,9 @@ import 'package:qpay/providers/splash_provider.dart';
 import 'package:qpay/screens/workspaces/workspace_provider.dart';
 import 'package:qpay/providers/uptime_provider.dart';
 import 'package:qpay/theme/app_theme.dart';
-import 'package:flutter_dotenv/flutter_dotenv.dart';
 import 'package:firebase_core/firebase_core.dart';
 import 'firebase_options.dart';
-
-const String testEnv = 'assets/.env.test';
-const String liveEnv = 'assets/.env.live';
-const String appEnv = String.fromEnvironment('APP_ENV', defaultValue: 'test');
-
-String resolveEnvFile(String env) {
-  switch (env.toLowerCase()) {
-    case 'live':
-      return liveEnv;
-    case 'test':
-    default:
-      return testEnv;
-  }
-}
+import 'config/app_config.dart';
 
 void main() async {
   WidgetsFlutterBinding.ensureInitialized();
@@ -35,8 +21,6 @@ void main() async {
   }
   await Firebase.initializeApp(options: DefaultFirebaseOptions.currentPlatform);
 
-  await dotenv.load(fileName: resolveEnvFile(appEnv));
-
   // Read the persisted auth token before the first frame so the router
   // knows whether the user is already signed in on cold start. Without
   // this we would briefly treat logged-in users as guests and bounce