[BUG] knowledge_file_repository.py有笔误x.metadata

[yangyousan123]

问题描述 / Problem Description
knowledge_file_repository.py有笔误，x.metadata 应该改为 x.meta_data 以保持属性名称的一致性。

return [{"id": x.doc_id, "metadata": x.metadata} for x in docs.all()]

附加信息 / Additional Information
Langchain-Chatchat-0.3.1.3\libs\chatchat-server\chatchat\server\db\repository\knowledge_metadata_repository.py

[dosubot]

In the knowledge_file_repository.py file, the attribute x.metadata should indeed be changed to x.meta_data to maintain consistency with the FileDocModel, which uses meta_data as the attribute name ^[1].

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