Authenticate login API with user_login.

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

backend/apps/farms/tests_feed_in_button.py

@@ -6,14 +6,14 @@ from apps.farms.models import Kandang, Site
 
 class KandangFeedInButtonUrlTests(TestCase):
     def setUp(self):
-        self.owner = User.objects.create_user(user_name="owner", password="secret")
+        self.owner = User.objects.create_user(user_login="owner", password="secret")
         self.admin = User.objects.create_user(
-            user_name="admin",
+            user_login="admin",
             password="admin123",
             status=User.STATUS_DIRECTOR_ADMIN,
         )
         self.staff = User.objects.create_user(
-            user_name="staff",
+            user_login="staff",
             password="staff123",
             status=User.STATUS_GM,
         )
@@ -27,11 +27,11 @@ class KandangFeedInButtonUrlTests(TestCase):
         token = client.cookies["csrftoken"].value
         return {"HTTP_X_CSRFTOKEN": token}
 
-    def _login(self, client: Client, user_name: str, password: str) -> None:
+    def _login(self, client: Client, user_login: str, password: str) -> None:
         client.get("/api/v1/auth/csrf/")
         response = client.post(
             "/api/v1/auth/login/",
-            {"user_name": user_name, "password": password},
+            {"user_login": user_login, "password": password},
             content_type="application/json",
             **self._csrf_headers(client),
         )