dsh-ssh-hub: DeepSeek Harness Multi-Server SSH Terminal Panel

`dsh-ssh-hub` is a multi-server SSH terminal panel plugin for the DeepSeek Harness Web GUI. It manages multiple sessions, group views, and broadcast commands within a single interface through a draggable, resizable floating window. The plugin provides a Wave Terminal-like experience, supports multiple authentication methods such as passwords and private keys, and includes features such as session ownership, automatic reconnection, theme adaptation, and secure storage. After installation, users can efficiently manage multiple servers via keyboard shortcuts and tabs.