feat: ship blog platform admin and deploy stack

deploy/scripts/backup/restore-markdown.sh

@@ -0,0 +1,20 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+if [[ $# -lt 1 ]]; then
+  echo "Usage: $0 <backup-file.tar.gz>" >&2
+  exit 1
+fi
+
+TARGET_DIR="${MARKDOWN_TARGET_DIR:-./backend/content/posts}"
+BACKUP_FILE="$1"
+
+if [[ ! -f "${BACKUP_FILE}" ]]; then
+  echo "Backup file not found: ${BACKUP_FILE}" >&2
+  exit 1
+fi
+
+mkdir -p "${TARGET_DIR}"
+rm -rf "${TARGET_DIR}"/*
+tar -xzf "${BACKUP_FILE}" -C "${TARGET_DIR}"
+echo "Markdown restore completed into ${TARGET_DIR}"