docs: open research ecosystem org card with models roadmap

docs: readable CTA links with emoji + labels

docs: icon-only GitHub Contribute Learn More links

docs: contributor funnel badges — GitHub, Contribute, Learn More

docs: native markdown org card with badges for dark mode

docs: inline HTML organization card

docs: simplify org card — Dali brand only, open artifacts + quick start

docs: research-initiative organization card (not marketing)

docs: add Dali open evidence infrastructure organization card

initial commit