annotate 3

划词批注与引用锚点：对话里划词批注（多轮按从上到下编号），文档预览里也能批注（docx/PDF/Markdown/代码按原文划词，xlsx/csv 按单元格选区地址；位置行带文件路径/行/页/选区，先攒后一次性发送）；引用块在输入框和已发送消息里始终可见，点一下跳回原文并高亮。纯客户端，锚点与批注存本地 localStorage。

Unified quoting for DeepSeek Harness Web: select file-editor text or chat messages → annotate → 「引用#N」chip → the AI receives a formatted quote block with file path and exact line range (source line hidden on the user side); sent quotes collapse into a hov

Circle a region or quote selected text in an image/PDF preview and insert it into the DSH composer.