知识库搜索测试接口增加预估长度修改 /api/core/dataset/searchTest

[liuhao16]

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• [ ] Apply: All new business logic should have corresponding unit tests.
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[c121914yu]

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[c121914yu]

感谢提交。 不过目前不打算修改这个，可能会导致恶意攻击或内容溢出。

[liuhao16]

800字对于某一些小段落回答太多了，会有不必要的返回。

[c121914yu]

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

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800 words is too much to answer certain small paragraphs, and there will be unnecessary returns.