@jmcc-guo/dsh-ssh: Adding SSH Terminal Panel and AI Connection Management to DSH

`@jmcc-guo/dsh-ssh` is an MIT-licensed plugin for DeepSeek Harness (DSH) designed to integrate AI-driven SSH connection management with a Web GUI visual terminal panel. It enables AI agents to directly manage SSH connections, execute commands, and view statuses through tools such as `ssh_connect` and `ssh_exec`, while providing human users with a terminal interface supporting real PTY, ANSI colors, and multi-tab functionality for human-machine collaborative operations. Core features include: strict separation of AI and user connections to ensure AI cannot directly manipulate user connections unless explicitly transferred; support for automatic connection saving, restart reuse, and automatic reconnection on unexpected disconnections (except explicit disconnections); and secure credential storage within the DSH cr