Update app.py

app.py

@@ -37,7 +37,7 @@ if not YUNWU_API_KEY:
 # ⚠️ base_url 请改成云雾文档给出的实际 OpenAI 兼容地址
 client = OpenAI(
     api_key=YUNWU_API_KEY,
-    base_url="https://api.your-yunwu-endpoint.com/v1"
+    base_url = "https://yunwu.ai/v1"
 )