Authenticate login API with user_login.

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/apps/accounts/serializers.py

@@ -30,6 +30,7 @@ class UserSerializer(PkAsIdMixin, serializers.ModelSerializer):
         model = User
         fields = [
             "id",
+            "user_login",
             "user_name",
             "status",
             "is_superuser",
@@ -74,6 +75,7 @@ class UserWriteSerializer(PkAsIdMixin, serializers.ModelSerializer):
         model = User
         fields = [
             "id",
+            "user_login",
             "user_name",
             "status",
             "is_superuser",
@@ -134,9 +136,9 @@ class UserWriteSerializer(PkAsIdMixin, serializers.ModelSerializer):
 
     def create(self, validated_data):
         password = validated_data.pop("password")
-        user_name = validated_data.pop("user_name")
+        user_login = validated_data.pop("user_login")
         return User.objects.create_user(
-            user_name=user_name, password=password, **validated_data
+            user_login=user_login, password=password, **validated_data
         )
 
     def update(self, instance, validated_data):
@@ -159,7 +161,7 @@ class SetPasswordSerializer(serializers.Serializer):
 
 
 class LoginSerializer(serializers.Serializer):
-    user_name = serializers.CharField(max_length=30)
+    user_login = serializers.CharField(max_length=30)
     password = serializers.CharField(write_only=True)