adjust registered by to managed by on db aslo remove url and api key on adding sites for gm

backend/apps/accounts/tests_scoping.py

@@ -31,13 +31,13 @@ class VisibilityScopeTests(TestCase):
             code="a",
             name="Site A",
             api_base_url="https://a.example/api/v1",
-            registered_by=self.gm,
+            managed_by=self.gm,
         )
         self.active_b = ActiveSite.objects.create(
             code="b",
             name="Site B",
             api_base_url="https://b.example/api/v1",
-            registered_by=self.gm_other,
+            managed_by=self.gm_other,
         )
         self.site = Site.objects.create(
             site_name="Site A", user=self.gm, active_site=self.active_a
@@ -98,7 +98,6 @@ class VisibilityScopeTests(TestCase):
             {
                 "code": "orphan-seed",
                 "name": "Orphan Seed",
-                "api_base_url": "https://orphan.example/api/v1",
                 "is_active": True,
             },
             format="json",