Update app.py

app.py

@@ -4,7 +4,7 @@ from mcp.server.auth.provider import AccessToken, TokenVerifier
 from mcp.server.auth.settings import AuthSettings
 from mcp.server.fastmcp import FastMCP
 from fastapi import FastAPI, Request
-from starlette.responses import JSONResponse, RedirectResponse
+from starlette.responses import JSONResponse, RedirectResponse, Response
 import contextlib
 import httpx