CKEditor AI Assistant support

Thank you for reporting. Will check and push the fix.

The reason is that streaming is not yet supported and AI tools are requesting streamed outputs. We are working on this and it will be part of next release. Will notify here.

I have implemented to streamed outputs and its fixed in dev release. I have tested with AI tools (ckeditor, summaries, suggestions etc) and it looks fine.

@merilainen I'd appreciate if you would have time to test it.

I'll soon release next alpha.

Tested with the latest dev version, worked like a charm! Marking RTBC since this is already in dev.