Update app.py

app.py

@@ -7,6 +7,7 @@ from fastapi.middleware.cors import CORSMiddleware
 from fastmcp.server import FastMCP
 from contextlib import asynccontextmanager
 from typing import List, Dict, Optional
+from fastapi.responses import JSONResponse
 
 # 初始化 MCP 服务器（必须在 FastAPI 之前）
 mcp_server = FastMCP(name="GitHubTrendingAPI")
@@ -84,4 +85,8 @@ async def root():
 async def get_trending(num: int = 10):
     if not cached_trending:
         await fetch_github_trending()
-    return {"trending": cached_trending[:num]}
+    return {"trending": cached_trending[:num]}
+
+@app.exception_handler(404)
+async def custom_404_handler(request, exc):
+    return JSONResponse(status_code=404, content={"detail": "Custom Not Found: Check path"})