update: 修复会员卡设置bug

src/view/companyGroup/membershipSystem/addGroupGrade.vue

@@ -337,7 +337,7 @@ export default {
         upLevelConsumeSelect: false, // x天内消费满x元-开关
         upLevelConsumeCost: '0', // x天内消费满x元
         autoDowngrade: true, //自动降级 1启用 2停用
-        gradeEffectDay: '0', //自升级之日起算X天
+        gradeEffectDay: 0, //自升级之日起算X天
         lowLevelHighcostDays: '0', //x天内单天消费满x元
         lowLevelHighcost: '0',
         lowLevelHighcostSelect: false,