add docker deployment

docker-entrypoint.sh

@@ -0,0 +1,21 @@
+#!/bin/sh
+# 单容器双进程启动:indexer(后台)+ preview(前台)
+# 任一进程退出都让容器退出,交给 docker/compose 的 restart 策略重启
+
+set -e
+
+cd /app
+
+# 后台跑 indexer
+echo "[entrypoint] starting lp-indexer on :8787"
+npm run indexer &
+INDEXER_PID=$!
+
+# 前台跑 preview(--host 0.0.0.0 暴露到容器外)
+echo "[entrypoint] starting lp-web (preview) on :4173"
+npm run preview -- --host 0.0.0.0 --port 4173 &
+WEB_PID=$!
+
+# 任一进程退出就整体退出
+trap 'echo "[entrypoint] process exited, shutting down"; kill $INDEXER_PID $WEB_PID 2>/dev/null; exit 1' CHLD
+wait