code-block 4

Cherry Studio-style paste for DSH Web: pasted text/code becomes a bordered, collapsible, language-tagged card with localized names (中文/English) and a one-click remove button; restored as a fenced code block on send — and folded back into collapsed, expand

Run button for shell code blocks in DSH replies: executes the snippet through the host shell service and streams its output to a bottom-right dock, or to a bottom-panel tab per run.

为会话消息中 markdown 渲染的代码块重新换肤：卡片外观、语言标签头部、复制按钮工具栏、行号、易读的字号与主题化滚动条，同时完整保留语法高亮、复制、流式渲染与吸顶标题栏等原有功能。

Markdown display enhancements for DeepSeek Harness Web: code block restyle, syntax highlighting for languages DSH does not ship, and built-in mermaid diagrams.