Feature request: Add a llms.txt file to the docs for AIs to learn

Some projects like [NextJS](https://nextjs.org/docs/llms-full.txt), [Stripe](https://docs.stripe.com/llms.txt), [BetterAuth](https://www.better-auth.com/llms.txt) and [Zod](https://zod.dev/llms.txt) already provide this.

With this file we can make sure that the AI model fetching it is always using the latest features and versions of postgresql.