连接一下安全设备ssh会连不上

这边发现连接启明星辰的天清waf设备，ssh连接会报错，具体信息我们也不清楚，看看能否增加一些ssh兼容的协议之类

Start by reproducing the SSH connection failure from WindTerm against the Tianqing WAF security device and capture the exact error shown in the report. Trace the SSH connection handling and identify which compatibility or protocol behavior prevents the session from connecting; done means a successful SSH connection to this device with regression coverage where available.

Written by the indexing model from the issue text.