sa-token不同应用如何获取用户的登录时间

目前sa-token框架可能在单应用里面可以获取到登录时间(待确认)

目前我使用A框架集成sa-token， 使用B框架直接解析redis的sa-token/session值
有办法可以获取到用户的登录时间吗？我只看到session key里面包含了 createTime
但是这个字段实际不是登录时间

No source file or test is named. Start by examining the sa-token/session entry in Redis and how its createTime is populated, then clarify what should count as the login time across applications and how that value should be exposed; done should include an agreed cross-application behavior.

Written by the indexing model from the issue text.