[Feature] 增加知识库更新节点

[xxyj6450]

MaxKB Version

1.9.2

Please describe your needs or suggestions for improvements

为了从对话中学习到新的知识，建议新增知识库更新节点，用于实时更新知识库

Please describe the solution you suggest

新增知识库更新节点，可以进行如下操作 1、选择更新指定文档中的段落 2、或选择在指定文档中新增段落 3、可编辑的知识文本录入框（支持变量）

Additional Information

No response

[baixin513]

感谢反馈，后续可以考虑有个知识库写入节点。

[shaohuzhang1]

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

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Thanks for feedback, you can consider a knowledge base to write the node in the future.