Update Dockerfile

Dockerfile

@@ -73,7 +73,12 @@ COPY entrypoint.sh /entrypoint.sh
 
 RUN chmod +x /sync_data.sh /entrypoint.sh
 
+# 创建非 root 用户
+RUN useradd -m -u 1000 appuser && \
+    chown -R appuser:appuser /app
 
+# 切换到非 root 用户
+USER appuser
 
 # 暴露端口 5000
 EXPOSE 5000