🚀 Feature Description and Motivation

With the validation of the request body recently added, embeddings request cannot be validated under aibrix.
It would be nice to also support the /v1/embeddings endpoint in addition to the /v1/chat/completions and /v1/completions endpoints already supported.

Use Case

This would be useful in order to use AiBrix for embeddings-related workloads

Proposed Solution

I'll open a dedicated PR to add embeddings support