fix(deployment): deploy.sh 删除语法错误的 $SSH 死代码行

deployment/deploy.sh

@@ -4,7 +4,6 @@ set -euo pipefail
 HOST="root@47.105.95.198"; APP="/var/www/hulai-travel-site"; NAME="hulai-travel"; URL="https://stay.1814.love"
 ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
 echo "==> 备份服务器运行时数据"
-$SSH="ssh -o BatchMode=yes $HOST"
 ssh -o BatchMode=yes $HOST "mkdir -p $APP/.deploy-bak && cp -a $APP/data.json $APP/config.json $APP/.deploy-bak/ 2>/dev/null || true"
 echo "==> 上传代码(排除运行时产物)"
 ( cd "$ROOT" && tar czf - --exclude='config.json' --exclude='data-backups' --exclude='hotels/_trash' --exclude='.git' --exclude='deployment' --exclude='.deploy-bak' . ) \