The old README documented the pre-pivot pi/Fastify/Vite scaffold (npm run
teach, doctor scripts, Fastify+WS server, extensions/) — all removed in the
pivot to standalone Next.js + Vercel AI SDK. New README covers the current
commands, env vars, embedded architecture diagram, key mechanisms
(client-side question tools, plan tree, async sub-agent protocol, live
graph emission), the dormant legacy scaffold, testing, and lineage.
Also commits the pending next-env.d.ts regeneration.
Amos