schema fix

Co-authored-by: Copilot <copilot@github.com>

bus_terminal/lib/models/user.dart

@@ -1,7 +1,7 @@
 /// User model
 class User {
   final int id;
-  final String userCode;
+  final int userCode;
   final String? job;
 
   User({
@@ -11,9 +11,20 @@ class User {
   });
 
   factory User.fromJson(Map<String, dynamic> json) {
+    // userCode may be provided as 'userCode' or 'usercode' and may be int or string
+    final dynamic rawUserCode = json['userCode'] ?? json['usercode'] ?? json['user_code'];
+    int parsedUserCode;
+    if (rawUserCode is int) {
+      parsedUserCode = rawUserCode;
+    } else if (rawUserCode is String) {
+      parsedUserCode = int.tryParse(rawUserCode) ?? (throw FormatException('Invalid userCode'));
+    } else {
+      throw FormatException('Missing userCode');
+    }
+
     return User(
       id: json['id'] as int,
-      userCode: json['userCode'] as String,
+      userCode: parsedUserCode,
       job: json['job'] as String?,
     );
   }
@@ -30,17 +41,44 @@ class User {
 /// Login response model
 class AuthResponse {
   final String token;
-  final User user;
+  final User? user;
 
   AuthResponse({
     required this.token,
-    required this.user,
+    this.user,
   });
 
   factory AuthResponse.fromJson(Map<String, dynamic> json) {
+    final dynamic rawToken = json['token'] ?? json['Token'] ?? json['authToken'];
+    final token = rawToken?.toString();
+    if (token == null || token.isEmpty) throw FormatException('Missing token in auth response');
+
+    // Determine if a user object exists and appears valid
+    Map<String, dynamic>? userMap;
+    if (json.containsKey('user') && json['user'] is Map<String, dynamic>) {
+      userMap = json['user'] as Map<String, dynamic>;
+    } else {
+      // maybe user fields are top-level (id, userCode, job)
+      final hasUserFields = json.containsKey('id') || json.containsKey('userCode') || json.containsKey('usercode') || json.containsKey('user_code');
+      if (hasUserFields) {
+        // treat whole json as user map
+        userMap = json.cast<String, dynamic>();
+      }
+    }
+
+    User? parsedUser;
+    if (userMap != null) {
+      try {
+        parsedUser = User.fromJson(userMap);
+      } catch (e) {
+        // If parsing user fails, ignore user but keep token
+        parsedUser = null;
+      }
+    }
+
     return AuthResponse(
-      token: json['token'] as String,
-      user: User.fromJson(json['user'] as Map<String, dynamic>),
+      token: token,
+      user: parsedUser,
     );
   }
 }