- Remove POST /api/auth/register (404); no sign-up UI; users are admin-managed
- Add admin-only POST/PATCH/DELETE /api/auth/users (forced canonical roles,
self-lockout + reference guards)
- Unify role model in app/core/roles.py; reject unknown roles at creation and
at login/JWT validation; startup normalizes unambiguous legacy aliases
- Login rate limiting ~5 fails/15 min per IP+email -> 429 (in-process, tunable)
- WhatsApp webhook requires X-Webhook-Secret; fail-closed when env unset;
GET handshake uses constant-time verify token (403 on mismatch)
- GET /api/whatsapp/mock-log now requires auth
- Security headers middleware: X-Frame-Options DENY, nosniff, CSP on HTML,
HSTS behind TLS
- Pagination: limit alias for page_size, hard cap enforced, both -> 422
- POST /api/whatsapp/webhook handles Meta verification (hub.challenge)
- Inbound text messages create tickets via create_ticket()
- Auto-reply confirmation sent back via Meta Graph API
- WhatsApp messages logged with ticket linkage in whatsapp_log
- Added WHATSAPP_PHONE_NUMBER_ID, WHATSAPP_ACCESS_TOKEN, WHATSAPP_VERIFY_TOKEN config
- Kept /mock-log debug endpoint for backward compatibility
- Graceful degradation: logs message even if ticket/reply fails