Refactor Docker setup and enhance file transfer progress handling. Updated Dockerfile for multi-stage builds, modified docker-compose.yml to include image and container name, and improved progress bar functionality in app.js for better user feedback during file transfers.

run.sh

@@ -0,0 +1,15 @@
+#!/bin/bash
+# 一键运行：拉代码后执行 ./run.sh 即可
+# 需要本机已安装 Docker 和 Docker Compose
+
+set -e
+cd "$(dirname "$0")"
+
+echo ">>> 构建并启动 SFTP Manager..."
+docker compose up -d --build
+
+echo ""
+echo ">>> 启动完成。"
+echo "    访问地址: http://localhost:48081/sftp-manager"
+echo "    停止服务: docker compose down"
+echo ""