chore(scripts): add frontend standalone deploy script

scripts/deploy-frontend-standalone.sh

@@ -0,0 +1,63 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+REPO_ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+cd "$REPO_ROOT"
+
+usage() {
+  cat <<'EOF'
+Usage:
+  ./scripts/deploy-frontend-standalone.sh <remote> <remote_app_dir>
+
+Arguments:
+  remote          SSH target, e.g. user@example.com
+  remote_app_dir  Remote deerflow2 root dir, e.g. /home/user/deerflow2
+
+Example:
+  ./scripts/deploy-frontend-standalone.sh ubuntu@1.2.3.4 /opt/deerflow2
+
+Notes:
+  - Run this script on your local machine (build machine), not on the server.
+  - Requires: pnpm, rsync, ssh
+  - Script will run:
+      sudo systemctl daemon-reload
+      sudo systemctl restart deerflow.service
+EOF
+}
+
+if [ "${1:-}" = "-h" ] || [ "${1:-}" = "--help" ]; then
+  usage
+  exit 0
+fi
+
+if [ "$#" -ne 2 ]; then
+  usage
+  exit 1
+fi
+
+REMOTE="$1"
+REMOTE_APP_DIR="$2"
+
+echo "==> Building frontend (standalone)..."
+pnpm -C frontend build
+
+echo "==> Uploading standalone server..."
+rsync -azP --delete --info=progress2 \
+  frontend/.next/standalone/ \
+  "$REMOTE:$REMOTE_APP_DIR/frontend/.next/standalone/"
+
+echo "==> Uploading static assets..."
+rsync -azP --info=progress2 \
+  frontend/.next/static/ \
+  "$REMOTE:$REMOTE_APP_DIR/frontend/.next/standalone/.next/static/"
+
+echo "==> Uploading public assets..."
+rsync -azP --info=progress2 \
+  frontend/public/ \
+  "$REMOTE:$REMOTE_APP_DIR/frontend/.next/standalone/public/"
+
+echo "==> Reloading systemd and restarting deerflow.service on remote host..."
+ssh "$REMOTE" "sudo systemctl daemon-reload && sudo systemctl restart deerflow.service"
+
+echo "==> Done."