fix(auth): enable local registration for OSS invitations (#2460)

Co-authored-by: dadachann <185672915+dadachann@users.noreply.github.com>

tests/integration/api/test_smoke.py

@@ -307,6 +307,7 @@ class TestUserInitEndpoint:
         assert data['data'] == {
             'initialized': True,
             'authenticated_invitation_acceptance_enabled': False,
+            'invitation_registration_enabled': True,
             'password_login_enabled': True,
             'space_login_enabled': False,
         }
@@ -330,6 +331,28 @@ class TestUserInitEndpoint:
         assert data['data'] == {
             'initialized': True,
             'authenticated_invitation_acceptance_enabled': True,
+            'invitation_registration_enabled': False,
+            'password_login_enabled': False,
+            'space_login_enabled': True,
+        }
+
+    @pytest.mark.asyncio
+    async def test_account_info_enables_local_invitation_registration_for_oauth_only_oss(
+        self, quart_test_client, fake_api_app
+    ):
+        fake_api_app.user_service.is_initialized.return_value = True
+        fake_api_app.user_service.get_login_capabilities = AsyncMock(
+            return_value={'password_login_enabled': False, 'space_login_enabled': True}
+        )
+
+        response = await quart_test_client.get('/api/v1/user/account-info')
+
+        assert response.status_code == 200
+        data = await response.get_json()
+        assert data['data'] == {
+            'initialized': True,
+            'authenticated_invitation_acceptance_enabled': False,
+            'invitation_registration_enabled': True,
             'password_login_enabled': False,
             'space_login_enabled': True,
         }

tests/integration/api/test_user_space_oauth.py

@@ -312,6 +312,29 @@ async def test_space_credits_are_resolved_from_workspace_owner(space_oauth_api):
     application.space_service.get_credits.assert_awaited_once_with('owner@example.com')
 
 
+@pytest.mark.asyncio
+async def test_oss_local_only_owner_requires_space_binding_for_langbot_models(space_oauth_api):
+    application, client = space_oauth_api
+    application.user_service.get_workspace_owner = AsyncMock(
+        return_value=SimpleNamespace(user='owner@example.com', space_account_uuid=None)
+    )
+    application.space_service.get_credits = AsyncMock()
+
+    response = await client.get(
+        '/api/v1/user/space-credits',
+        headers={'Authorization': 'Bearer account-token', 'X-Workspace-Id': WORKSPACE_UUID},
+    )
+    payload = await response.get_json()
+
+    assert response.status_code == 200
+    assert payload['data'] == {
+        'credits': None,
+        'owner_space_bound': False,
+        'is_workspace_owner': True,
+    }
+    application.space_service.get_credits.assert_not_awaited()
+
+
 @pytest.mark.asyncio
 async def test_cloud_workspace_owner_is_always_space_bound_after_login(space_oauth_api):
     application, client = space_oauth_api