fix

lib/core/storage/secure_storage.dart

@@ -52,6 +52,9 @@ class SecureStorage {
   /// Key for storing username
   static const String _usernameKey = 'username';
 
+  /// Key for storing email
+  static const String _emailKey = 'email';
+
   // ==================== Token Management ====================
 
   /// Save access token securely
@@ -126,6 +129,24 @@ class SecureStorage {
     }
   }
 
+  /// Save email
+  Future<void> saveEmail(String email) async {
+    try {
+      await _storage.write(key: _emailKey, value: email);
+    } catch (e) {
+      throw Exception('Failed to save email: $e');
+    }
+  }
+
+  /// Get email
+  Future<String?> getEmail() async {
+    try {
+      return await _storage.read(key: _emailKey);
+    } catch (e) {
+      throw Exception('Failed to read email: $e');
+    }
+  }
+
   /// Check if user is authenticated (has valid access token)
   Future<bool> isAuthenticated() async {
     final token = await getAccessToken();