Azure voice backend is running.

Webhook paths (must include these in the URL):
  Plivo Answer URL: POST /api/plivo/webhook/answer
  Twilio voice:      POST /api/twilio/webhook/voice

Auth: GET /api/twilio/numbers (Plivo-owned, legacy path), GET /api/plivo/numbers (Plivo), GET /api/phone-mappings (both).
Health: GET /health