fix: git-sync для detached HEAD, shop-root требует .git

Co-authored-by: Cursor <cursoragent@cursor.com>

scripts/server-update.sh

@@ -1,17 +1,23 @@
 #!/bin/bash
 # Обновление на сервере: git pull, npm, restart shop
-# Запуск из любого места:
 #   bash /opt/shop/shop10/scripts/server-update.sh
-#   cd /opt/shop/shop10 && bash scripts/server-update.sh
 set -euo pipefail
 
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 # shellcheck source=shop-root.sh
-source "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)/shop-root.sh"
+source "$SCRIPT_DIR/shop-root.sh"
 
 echo "=== Shop update: $SHOP_ROOT ==="
 
-git config --global --add safe.directory "$SHOP_ROOT" 2>/dev/null || true
-git pull
+if [ ! -d .git ]; then
+  echo "Ошибка: $SHOP_ROOT не git-репозиторий (нет .git)."
+  echo "Если код только в /opt/shop/shop10 без git — переустановите:"
+  echo "  mv /opt/shop/shop10 /opt/shop/shop10.bak"
+  echo "  git clone https://git.evilfox.cc/test/shop10.git /opt/shop/shop10"
+  exit 1
+fi
+
+bash "$SCRIPT_DIR/git-sync.sh"
 
 npm install --omit=dev