DeepSeek Harness 聊天列表性能优化：为消息节点启用 content-visibility:auto，跳过屏外节点渲染/布局/绘制；DSH plugin: content-visibility:auto windowing for the chat list, smoother scrolling in long conversations.
dsh plugin --profile web add github:hongweifei/dsh-chat-content-visibility-auto