{"message":"WhatsApp Cloud API Multi-Tenant Backend is running.","endpoints":{"health":"/health","auth":"/v1/auth","workspaces":"/v1/workspaces","whatsapp":"/v1/whatsapp","templates":"/v1/templates","contacts":"/v1/contacts","campaigns":"/v1/campaigns","workflows":"/v1/workflows","billing":"/v1/billing","inbox":"/v1/inbox","apiKeys":"/v1/api-keys","publicApi":"/public/v1","compliance":"/v1/compliance","webhooks":"/v1/webhooks"}}