Update app.py

app.py

@@ -3,6 +3,10 @@ from vllm import LLM, SamplingParams
 from pydantic import BaseModel
 from fastapi.responses import JSONResponse
 import uvicorn
+import os
+os.environ["HF_HOME"] = "/data"
+os.environ["TRANSFORMERS_CACHE"] = "/data"
+os.environ["HF_HUB_CACHE"] = "/data"
 
 # 1. 加载模型（会自动从 HuggingFace Hub 拉取）
 llm = LLM(model="Qwen/Qwen2.5-Coder-7B-Instruct")