feat(merchant): 添加阿里巴巴展示开关参数

- 在商户参数检查方法中新增 is_show_alibaba 字段
- 该字段用于控制是否显示阿里巴巴相关功能
- 参数默认值设置为 0（关闭状态）

app/controller/admin/system/merchant/Merchant.php

@@ -179,7 +179,7 @@ class Merchant extends BaseController
      */
     public function checkParam(MerchantValidate $validate, $isUpdate = false)
     {
-        $data = $this->request->params([['category_id', 0], 'mer_type','mer_name', 'commission_rate', 'real_name', 'mer_phone', 'mer_keyword', 'mer_address', 'mark', ['sort', 0], ['status', 0], ['is_audit', 0], ['is_best', 0], ['is_bro_goods', 0], ['is_bro_room', 0]]);
+        $data = $this->request->params([['category_id', 0], 'mer_type','mer_name', 'commission_rate', 'real_name', 'mer_phone', 'mer_keyword', 'mer_address', 'mark', ['sort', 0], ['status', 0], ['is_audit', 0], ['is_best', 0], ['is_bro_goods', 0], ['is_bro_room', 0],['is_show_alibaba',0]]);
         if (!$isUpdate)
             $data += $this->request->params(['mer_account', 'mer_password']);
         else