Mark J. Hoy

### Work in Progress This PR adds support for Azure AI Studio integration into the Inference API. Currently this supports `text_embedding` and `completion` task types.

Add Docs for Azure AI Studio Support for the Inference API

3

Add docs for the Azure AI Studio embeddings and chat completion task type (from https://github.com/elastic/elasticsearch/pull/108472) Also updates the [Semantic Search tutorial](https://www.elastic.co/guide/en/elasticsearch/reference/master/semantic-search-inference.html) to add in Azure AI Studio as well.

- Have you signed the [contributor license agreement](https://www.elastic.co/contributor-agreement)? - Have you followed the [contributor guidelines](https://github.com/elastic/elasticsearch/blob/main/CONTRIBUTING.md)? - If submitting code, have you built your formula locally prior to submission with `gradle...

[ML] Adds Explain Functionality to LTR Rescoring

4

Adds explain functionality to LTR rescoring. The explanations will be output (using the `explain=true` flag in the query) and will be per result hit describing the query and the features...