docs: reconcile current acceptance and retire obsolete status
site: make root experience live and repository-aware
site: expose live data-plane metrics
docs: codify public website design standard
site: make Hugging Face incident the end-to-end showcase
site: use real cases and simplify public language
site: rewrite public UX around source-driven intelligence
site: refresh M3 status and expand core data cases
site: align source ownership and M3 release state