There is no such addon yet...
I think an AI translator of non-default language is something many webmasters would find useful. Why warn someone if we can have a useful post instead?
ChatGPT Translate was just released. And I'm sure other LLMs can easily translate such posts.
Various developers are working on or releasing LLM addons. You could hire a developer. It seems a relatively simple addon to create depending on your requirements. If its just an editor translation button to click. If you want an AI to recognize the language for all new posts, then LLM costs may rack up if you have a lot of new posts.