Implement llms.txt standard for improved AI/LLM documentation access

[romek-codes]

FilamentPHP could adopt the llms.txt standard (llmstxt.org) to make documentation more accessible to AI tools and developers using LLMs.

The standard proposes:

/llms.txt - structured markdown with project overview and file listings
Markdown versions of docs at [page-url].md
Optional context-specific files (full/medium/small)

This would help developers get better AI assistance with Filament development and follows an emerging web standard already adopted by Svelte, FastHTML, nbdev projects, and others.
Would love to see Filament lead Laravel ecosystem adoption of this standard.

[arxjei]

yeah agree.