multi-host 2

DeepSeek Harness plugin: a sidebar tab that takes over the whole page with another DSH instance's Web GUI, plus a remote session-state badge on the rail row. 在侧边栏顶部加一个「远程」标签，整页切到另一台主机上的 DSH。

Workspace mesh for DeepSeek Harness: declare which workspace lives on which host, dispatch tasks by workspace across paired DSH instances, and control the remote host lifecycle. The agent loop never leaves the owning machine.