Conversation Canvas 标签页：实时预览工作区内的 HTML artifact，并支持本地导出 PNG/JPG/SVG（`npx dsh-canvas-preview`）。
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.