@zengqingsong

可弹出侧边栏 · Popout Sidebar — an artifacts + file-tree sidebar for DeepSeek Harness: offline previews (code / Markdown with math & Mermaid / PDF / HTML / images / CSV tables / Word·Excel·PowerPoint / audio-video), CodeMirror editing with Ctrl+S, a read-only Git slice, and a one-click pop-out into a second-monitor tab.