Email verification is no longer enforced (see backend), and sign-up now
auto-signs-in, so route to clinic onboarding instead of /verify-email.
Update CLAUDE.md: the app now talks to ../backend (auth + patient API),
route protection via proxy.ts, and build/type-check guidance.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>