{"message":"WhatsApp API Server is running","version":"1.0.0","status":"online","authentication":"required","endpoints":{"public":{"/":"GET - API information","/health":"GET - Health check","/qr":"GET - QR code page"},"protected":{"/status":"GET - Server status (read permission)","/qr-json":"GET - QR code JSON (read permission)","/network-test":"GET - Network test (read permission)","/send-message":"POST - Send message (write permission)","/send-bulk":"POST - Send bulk messages (write permission)","/api-keys":"GET - List API keys (admin permission)"}},"documentation":{"authentication":"Include X-API-Key header or api_key query parameter","permissions":["read","write","admin"]}}