Add Docker deployment as the recommended production setup.

Include Dockerfile, docker-compose on port 3130, npm mirror config, deploy scripts, and DOCKER.md; keep PM2 docs as fallback.

Co-authored-by: Cursor <cursoragent@cursor.com>

scripts/deploy.sh

@@ -16,13 +16,21 @@ git pull origin main
 echo "==> 安装依赖..."
 npm ci || npm install
 
+echo "==> 停止 PM2（避免无构建产物时反复重启）..."
+pm2 stop "$APP_NAME" 2>/dev/null || true
+
 echo "==> 生产构建..."
 npm run build
 
+if [[ ! -f .next/BUILD_ID ]]; then
+  echo "ERROR: 构建失败，未找到 .next/BUILD_ID，请先解决 npm run build 报错后再启动。"
+  exit 1
+fi
+
 echo "==> 确保日志目录存在..."
 mkdir -p logs
 
-echo "==> 重启 PM2..."
+echo "==> 启动 PM2..."
 if pm2 describe "$APP_NAME" > /dev/null 2>&1; then
   pm2 restart "$APP_NAME"
 else