إرسال رسالة نصية

curl -X POST "https://nabbih.com/api/v1/whatsapp/messages/send-text" \
  -H "Authorization: Bearer {YOUR_API_KEY}" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: {unique-key}" \
  -d "{
    \"to\": \"+966500000000\",
    \"body\": \"شكراً لتواصلك! كيف يمكننا مساعدتك؟\",
    \"preview_url\": true
  }"

{
  "error": {
    "code": "outside_session_window",
    "message": "Official WhatsApp outbound policy denied the request (approved_template_required)."
  }
}