[Feature] Supports father-son segmentation

[jstbw]

MaxKB Version

1.10.2

Please describe your needs or suggestions for improvements

当前coze、fastgpt等产品都支持父子分段，虽然mk可以有折中方案，通过重排来实现，但是针对法律条文、逻辑性强的文档就没办法处理，用户在这块普遍反馈父子分段要跟上，遇到很多次了

Please describe the solution you suggest

No response

Additional Information

No response

[baixin513]

MaxKB默认是分段后再进行子分块，检索时检索到子分块后会召回父分段，也就是所谓的父子分段，只是没有体现在交互页面上。

[shaohuzhang1]

Bot detected the issue body's language is not English, translate it automatically. 👯👭🏻🧑‍🤝‍🧑👫🧑🏿‍🤝‍🧑🏻👩🏾‍🤝‍👨🏿👬🏿

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MaxKB defaults to segmenting and then performs sub-blocking. After retrieving the sub-blocking, the parent segment will be recalled, which is the so-called parent-child segmenting, but it is not reflected on the interactive page.