dual-doc-faq

双文档答疑工作流：用户对某份主文档提问时，在主文档中添加简短注解，同时在配套 FAQ 文档中添加完整 Q&A 条目。 适用于任何"主文档 + FAQ 文档"的答疑场景。 Use when the user asks to explain terms, concepts, or mechanisms from a document and wants both a brief inline annotation and a detailed FAQ entry, or mentions "答疑", "解释一下", "啥意思", "什么意思", "介绍下", "补充进文档", "补充说明".