AI/LLM Assistant functionality

Microsoft Bing will drop their websearch API in August 2025. We will need to remove it as source by then. The only replacement they offer is an AI/LLM based search feature.

First tests show that it is not suitable for integration in MetaGer but since AI search features gain more and more traction we plan on offering AI search features in MetaGer. However we will not mix it up with traditional websearch. Instead the idea is to offer those features optionally in a seperate Focus.

Also we want to integrate the Metasearch Idea into those features aswell and give multiple options for which AI providers should be used and offer our traditional Proxy anonymization methods to those so our users can make use of those features without direct contact to those companies.