Env-guarded so build stays green: /api/payments/[order_id]/deposit+release + /api/webhooks/stripe (lazy Stripe, 50/50 escrow, 501 until keys); /api/auth login|me|logout (HMAC signed-session scaffold, guarded dev login); lib/engine bridges edge->FastAPI (estimates defers to ENGINE_URL when set); components/embed for NocoDB/Metabase signed URLs; .env.example full inventory. tsc 0, build green.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
