update Dockerfile

Dockerfile

@@ -26,11 +26,11 @@ USER user
 # 拷贝应用文件并安装依赖
 COPY --chown=user . $HOME/app
 
-WORKDIR $HOME/app/hf_app
-
 RUN pip install --no-cache-dir --upgrade pip \
  && pip install --no-cache-dir streamlit \
  && pip install --no-cache-dir -r requirements.txt
 
-# 运行 Streamlit 应用
+WORKDIR $HOME/app/hf_app
+
+ # 运行 Streamlit 应用
 CMD ["streamlit", "run", "app.py", "--server.port", "8200"]