feat: enable embeddings in Docker image/HTTP server

[KirioXX]

Hi there!

I am currently using Kreuzberg to process rulebooks for Pen and Paper games. I noticed that while vector embedding generation is a core feature of the library, it doesn't seem to be exposed via the Docker HTTP server yet.

Is it possible to enable embedding generation through the Docker image?

Having an endpoint (e.g., /embed or a config in /extract) would allow me to streamline my RAG workflow and remove a separate embedding step in my pipeline.

I am happy to help with the implementation! If you can point me toward the right sections to look at, I can put together a PR.

Thank you for the great tool!

[Goldziher]

Hi. Embeddings are available as part of the extraction API. I will add a dedicated embeddings API as well.

[KirioXX]

Thank you for the quick reply!

I tried adding [chunking.embeddings] to my kreuzberg.toml, but the service fails to start (likely a validation error in the config loader).

Could you clarify:

1. Is the embedding config currently supported via the TOML file, or only via POST request parameters to the /extract endpoint?
2. What is the exact key structure expected for embeddings in the config?

Thanks!

[Goldziher]

RC.28 standardizes the config. It's being released