feat: add .gitignore and apps/template for new apps

apps/template/stop.sh

@@ -0,0 +1,15 @@
+#!/usr/bin/env bash
+# 用途：停止 {{APP_NAME}}（保留資料）
+
+set -euo pipefail
+
+APP_NAME="{{APP_NAME}}"
+
+echo "🛑 停止 $APP_NAME（保留 PVC 資料）..."
+
+# 只刪除 Deployment 和 Service，PVC 會保留
+kubectl delete deployment/$APP_NAME --ignore-not-found
+kubectl delete service/$APP_NAME-service --ignore-not-found
+kubectl delete ingress/$APP_NAME-ingress --ignore-not-found
+
+echo "✅ $APP_NAME 已停止，資料安全保留"