会话生命周期 CLI：导出（md/json/jsonl）、归档/恢复、回收站、搜索与统计。默认只读；引擎从不删除任何东西。
curl -fsSL https://www.dshhub.co/install.sh -o dshhub-install.sh && bash dshhub-install.shAlready have DSH? Skip the wizard and install the market directly:dsh plugin --profile web add dshhub-market
This plugin installs only from the plugin side.