Add initial project structure and configuration files for iOS and Android

lib/features/accounts/models/account.dart

@@ -0,0 +1,15 @@
+class Account {
+  final String id;
+  final String accountNumber;
+  final String accountType;
+  final double balance;
+  final String currency;
+  
+  Account({
+    required this.id,
+    required this.accountNumber,
+    required this.accountType,
+    required this.balance,
+    required this.currency,
+  });
+}