服务端线程模型

建立连接：connected，主要是的职责是在channel记录read、write的时间；"主要是的职责"

The issue only points to the “connected” server thread-model description and mentions recording channel read and write times; it names no file, test, or entry point. First locate the corresponding thread-model documentation in the dubbo-website source, then clarify the incomplete wording and verify that the resulting explanation accurately states the connected responsibility.

Written by the indexing model from the issue text.