The site-prompt extractor / builder. Give it a page's extraction and it returns the structured functional domain — a 10-dimension decomposition — and the master build-step prompts to reconstruct it.
/api/nexus— manifest/api/analyze— { extraction } → decomposition + promptsDeterministic decompose → regenerate. Live-URL
harvest (adapter-gated) and the Supabase-backed build/deliver path are later slices. This
activates the geobond apex — live and active, no longer a placeholder.