Smart List Input
智能 Markdown 列表输入：中文标点（1、1。等）自动转标准序号，支持有序/无序/待办列表快速切换，子项类型与所在层级保持一致。Smart Markdown list input: auto-converts Chinese punctuation to standard numbering, quick-switches ordered/bullet/task lists, keeps child types consistent with their level.