feat: Support embedding OpenAI interface

[5102a]

Pull Request 概述

• openai API 部署支持创建 embeddings 接口

提交的变更

• 新增 /v1/embeddings post 接口
• 修改 readme 相关示例代码

[panjican]

你好，我使用了这份代码，发现每次调用一次/v1/embeddings接口，显存占用都会提高一些，请问这是正常的么？

[unanan]

hi, is text-embedding-ada-002 a placeholder?

[jinec]

@5102a 你好，我看了您的计算embeddings的方式，那么问题来了，在使用embedding进行搜索的时候，是用加法计算距离好、还是用乘法计算算法好呢

[jklj077]

Hi, @5102a, thanks for this proposal. However, as Qwen is not supposed to be used as an embedding module, adding this feature may cause users to believe it is officially supported. I don't think it will be merged.