add tmall item status

backend/app/Platform/Tmall/Constants/ItemStatus.php

@@ -0,0 +1,22 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Platform\Tmall\Constants;
+
+use Hyperf\Constants\Annotation\Constants;
+use Hyperf\Constants\Annotation\Message;
+use Hyperf\Constants\EnumConstantsTrait;
+
+#[Constants]
+enum ItemStatus: string
+{
+    use EnumConstantsTrait;
+
+    #[Message("Onsale")]
+    case ONSALE = 'onsale';
+
+    #[Message("Instock")]
+    case INSTOCK = 'instock';
+
+}