self-update 3

In-app self-update for DeepSeek Harness git-source installs (check / one-click update / rollback / restart), with an optional native macOS shell.

Version management for the dsh Web GUI settings panel: inspect the installed @deepseek-ai/dsh against every npm channel or version line, install or downgrade with one click, roll back instantly from local snapshots, automate the whole cycle with a policy

Self-update plugin for DeepSeek Harness: check npm for newer @deepseek-ai/dsh, swap node_modules atomically, restart, health-check and roll back on failure; also supports one-click online update of installed DSH plugins. DSH 主程序与已装插件的一站式在线更新插件。