rocketmq 5.x support msg trace，just like 4.x

[hujie6]

recetenly, we plan to upgrade rocketmq 4.x to 5.x，and after reviewed 5.x code, i didn‘t found msg trace ability just like 4.x. we need trace ability just like 4.x

[onejimmyboy]

请问您也使用的是proxy模式吗?又找到方法吗？