更新dockerfile

docker/entrypoint.sh

@@ -0,0 +1,30 @@
+#!/bin/sh
+set -e
+
+# 启动 Dart 后端 (内部端口 8081)
+echo "Starting Dart backend on port 8081..."
+export PORT=8081
+/app/bin/server &
+BACKEND_PID=$!
+
+# 等待后端启动
+sleep 2
+
+# 启动前端 (Node.js SSR, 端口 8080)
+echo "Starting frontend on port 8080..."
+export PORT=8080
+export HOST=0.0.0.0
+export BACKEND_URL=http://127.0.0.1:8081
+cd /app/web/build
+node index.js &
+FRONTEND_PID=$!
+
+# 捕获退出信号，优雅关闭两个服务
+trap "echo 'Shutting down...'; kill $BACKEND_PID $FRONTEND_PID 2>/dev/null; exit 0" SIGTERM SIGINT
+
+# 等待任意进程退出
+wait -n $BACKEND_PID $FRONTEND_PID
+
+# 如果有一个进程退出，杀死另一个
+kill $BACKEND_PID $FRONTEND_PID 2>/dev/null || true
+exit 1