Reduce timeout to 30s

app.py

@@ -70,7 +70,7 @@ async def chat(req: Request):
         
         try:
             start_time = time.time()
-            async with httpx.AsyncClient(timeout=120.0) as client:
+            async with httpx.AsyncClient(timeout=30.0) as client:
                 resp = await client.post(
                     f"{BASE_URL}/v1/chat/completions",
                     json=body,