@EdwardXiao-bit

Adds a Run button to shell code blocks in DSH replies, executing the command on the host and streaming its output to a dock or a bottom-panel tab. 给 DSH 回复里的命令行代码框加一个「运行」按钮：在宿主机上执行该命令，输出显示在右下角浮动面板或底部面板标签页。