修改新建工单时，时间错误bug

src/components/ticket/TicketForm.vue

@@ -177,6 +177,9 @@ const handleSubmit = async () => {
 
     // 复制提交数据，如果是新增，确保 staff_id 为空
     const submitData = { ...form };
+
+    delete submitData.create_time;
+    delete submitData.update_time;
     if (!props.isEditing) {
       submitData.staff_id = null;
     }