建议server端的事务数据可以通过参数自行控制是否清除

## Why you need it?
Is your feature request related to a problem? Please describe in details
希望server端的事务数据可以通过配置参数的方式控制是否在事务结束之后继续保留

## How it could be?
A clear and concise description of what you want to happen. You can explain more about input of the feature, and output of it.
希望server端的事务数据可以通过配置参数的方式控制是否在事务结束之后继续保留

## Other related information
Add any other context or screenshots about the feature request here.

The issue does not name any files, tests, or entry points. Start by locating the server-side transaction lifecycle and its configuration options, then determine where transaction data is cleared after completion. Done means a documented configuration controls whether that data is retained, with tests covering both configured behaviors.

Written by the indexing model from the issue text.