* docs: clarify message list pagination to prevent nextCursor misuse (fixes #195) - Add detailed pagination walkthrough section for 'message list' in chat.md - Add comparison table distinguishing 'message list' (--time with createTime) from 'message list-all' (--cursor with nextCursor) - Add warning about common error: using nextCursor as --time value causes infinite loop returning same page * docs: fix --time required label and add --forward misuse warning (fixes #195) --------- Co-authored-by: 猷诺 <bicheng.ybc@alibaba-inc.com>