[Meta] Bring AI Search, Assistants and Chatbot out of Experimental

Combine lexical + Vector search in one query (qdrant does this) (Note: BM25 is not the same as solr, etc). This is for when we provide context to an LLM, not just the boost with with AI functionality

Can you detail this one a bit more? Sorry I'm so used to the drupal terminology I don't know what this means in a practical sense. Also can't see anything in Qdrant docs that shows how its different from filtering in Milvus for example, so would be good to get pointed in direction there.

I think we also need to get someone who uses e.g. Mandarin or Japanese for example to work on 🐛 Broken Byte-Pair Encoding (BPE) Active in the embedding strategies.

Is Seogow working on the Qdrant side of things still? Might make it more clear

I have also been working on ✨ Improve the Search API admin UI for adding/editing fields Active which needs review. It should significantly improve the user interface for adding fields.