feat(deploy): 拉取后自动合并 server/.env.example 缺失键，服务器只跑 pull-and-restart

Made-with: Cursor

restart.sh

@@ -180,6 +180,7 @@ if [ ! -f server/.env ]; then
     echo "已创建默认 server/.env"
   fi
 fi
+bash "$ROOT/scripts/merge-server-env-from-example.sh" "$ROOT" || true
 [ -f server/.env ] && sed -i 's/\r$//' server/.env 2>/dev/null || true
 [ -f server/.env ] && set -a && source server/.env && set +a