fix(OrdersPage): 添加 mounted 钩子以初始化加载订单列表

@@ -257,6 +257,11 @@ const currentStatusIndex = computed(() => {
   return statusColumns.findIndex(item => item.value === selectedStatus.value)
 })
 
+onMounted(() => {
+  // 初始化加载订单列表
+  onLoad()
+})
+
 // 状态选择确认
 const onStatusConfirm = ({ selectedValues, selectedOptions }) => {
   selectedStatus.value = selectedValues[0]