Update app.py

app.py

@@ -128,7 +128,7 @@ class ProxyClient:
         """健康检查"""
         try:
             url = f"{self.base_url}/health"
-            response = self.session.get(url, timeout=5)
+            response = self.session.get(url, timeout=self.timeout)
             response.raise_for_status()
             return response.json()
         except Exception as e: