feat: serve raw markdown at [page-path].md for every page on akash.network

[Sandeep-Narahari]

Problem:
AI answer engines and LLM agents consuming llms.txt need clean text content. Currently akash.network has no machine-readable alternative to HTML for any page. Scraping rendered HTML gives nav, footer, scripts, and CSS noise alongside content.

Serve a .md equivalent at every page URL by appending .md

Enables a complete llms.txt with .md links for every page:

AI systems that index llms.txt can then fetch clean content instead of parsing HTML.