fix(mallOrder): 修正平台确认收货状态判断条件

将状态判断从'8'改为'7'以匹配正确的平台确认收货状态

src/views/mallOrder/refund/components/refund-detail-dialog.vue

@@ -685,7 +685,7 @@
     });
 
     const isPlatformConfirmReceipt = computed(() => {
-        return String(form.value.status) === '8';
+        return String(form.value.status) === '7';
     });
 
     const returnLatestTrack = computed(() => {