[Feature Request] Support for /v1/completions API

[ParaN3xus]

I would like to request the addition of support for the /v1/completions API in the current project. Many other software applications already utilize this API, and it has become a common standard. However, the absence of support for this API in our project hinders its seamless integration with other software that relies on it.

By incorporating support for the /v1/completions API, our project would be able to effectively replace other software applications that use this API. This enhancement would provide a more comprehensive and cohesive user experience, enabling users to seamlessly transition between different software solutions.