- New portal/signup.html with phone → OTP → profile flow
- Handle both new users (signup) and existing users (login)
- Auto-detect user type and use appropriate API endpoints
- Show DEV_OTP on page for local testing
- Updated sendOTP.cfm to gracefully handle missing Twilio
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
