fixed some tests

tests/frontend/test_existing_ui_integration.py

@@ -243,18 +243,19 @@ class TestFrontendDownloadAPI:
         
         assert response.status_code == 200
         data = response.json()
-        # Check for expected response structure
-        assert "is_running" in data or "statistics" in data
+        # Check for expected response structure (nested status)
+        assert "status" in data
+        assert "statistics" in data
     
     async def test_start_download_queue(self, authenticated_client):
         """Test POST /api/queue/start starts next download."""
         response = await authenticated_client.post("/api/queue/start")
         
-        # Should return 200 with item_id, or 400 if queue is empty
+        # Should return 200 with success message, or 400 if queue is empty
         assert response.status_code in [200, 400]
         data = response.json()
         if response.status_code == 200:
-            assert "item_id" in data
+            assert "message" in data or "status" in data
     
     async def test_stop_download_queue(self, authenticated_client):
         """Test POST /api/queue/stop stops processing new downloads."""