Query: Use `llm` program instead of `cratedb-about ask`

## About

We started with a custom implementation `cratedb-about ask`, but it would be way better to use a standard one. I think Simon Willison's [llm](https://github.com/simonw/llm) program would be a good choice.

## References

- https://sean.heelan.io/2025/05/22/how-i-used-o3-to-find-cve-2025-37899-a-remote-zeroday-vulnerability-in-the-linux-kernels-smb-implementation/ ([discuss](https://news.ycombinator.com/item?id=44060711))