fix tests

tests/performance/test_api_load.py

@@ -8,6 +8,7 @@ concurrent requests and maintain acceptable response times.
 import asyncio
 import time
 from typing import Any, Dict, List
+from unittest.mock import AsyncMock, MagicMock
 
 import pytest
 from httpx import ASGITransport, AsyncClient
@@ -20,6 +21,22 @@ from src.server.fastapi_app import app
 class TestAPILoadTesting:
     """Load testing for API endpoints."""
 
+    @pytest.fixture(autouse=True)
+    def mock_series_app_dependency(self):
+        """Mock SeriesApp dependency for performance tests."""
+        from src.server.utils.dependencies import get_series_app
+        
+        mock_app = MagicMock()
+        mock_app.list = MagicMock()
+        mock_app.list.GetMissingEpisode = MagicMock(return_value=[])
+        mock_app.search = AsyncMock(return_value=[])
+        
+        app.dependency_overrides[get_series_app] = lambda: mock_app
+        
+        yield
+        
+        app.dependency_overrides.clear()
+
     @pytest.fixture
     async def client(self):
         """Create async HTTP client."""