test: tighten phase 1 coverage contracts

tests/integration/api/test_knowledge.py

@@ -65,7 +65,8 @@ def fake_knowledge_app():
     # Auth services
     app.user_service = Mock()
     app.user_service.is_initialized = AsyncMock(return_value=True)
-    app.user_service.verify_jwt_token = AsyncMock(return_value={'email': 'test@example.com'})
+    app.user_service.verify_jwt_token = AsyncMock(return_value='test@example.com')
+    app.user_service.get_user_by_email = AsyncMock(return_value=Mock(email='test@example.com'))
     app.apikey_service = Mock()
     app.apikey_service.verify_api_key = AsyncMock(return_value=True)
 
@@ -257,4 +258,4 @@ class TestKnowledgeBaseRetrieveEndpoint:
 
         assert response.status_code == 400
         data = await response.get_json()
-        assert data['code'] == -1
+        assert data['code'] == -1