feat(shopro): 新增复购立减活动类型并优化订单活动信息显示

application/admin/model/shopro/activity/Activity.php

@@ -43,6 +43,7 @@ class Activity extends Model
             'full_discount' => '满额折扣',
             'free_shipping' => '满额包邮',
             'promote'       => '限时促销',
+            'repurchase'    => '复购立减',
         ];
     }