AUTH:
- NextAuth with credentials provider (bcrypt password hashing)
- /api/auth/signup: creates org + user in transaction
- /login, /signup pages with clean minimal UI
- Middleware protects all /dashboard/* routes → redirects to /login
- Session-based org resolution (no more hardcoded 'demo' headers)
- SessionProvider wraps entire app
- Dashboard header shows org name + sign out button
LANDING PAGE:
- Full marketing page at / with hero, problem, how-it-works, features, CTA
- 'Get Started Free' → /signup → auto-login → /dashboard/setup
- Clean responsive design, no auth required for public pages
WAHA QR FIX:
- WAHA CORE doesn't expose QR value via API or webhook
- Now uses /api/screenshot (full browser capture) with CSS crop to QR area
- Settings panel shows cropped screenshot with overflow:hidden
- Auto-polls every 5s, refresh button
MULTI-TENANT:
- getOrgId() tries session first, then header, then first-org fallback
- All dashboard APIs use session-based org
- Signup creates isolated org per charity
- /api/whatsapp/qr: GET returns session status + QR image, POST starts/restarts session
- Settings page: WhatsApp panel shows QR code for pairing, connected status with phone info
- WAHA session started with webhook pointing to /api/whatsapp/webhook
- WAHA_API_URL updated to external https://waha.quikcue.com (cross-stack DNS doesn't work)
- Auto-polls every 5 seconds during QR scan state
- Shows connected state with phone number, push name, feature summary
