curl --location '{{baseUrl}}/api/whatsapp/add-agent-in-whatsapp-number' \
--header 'Authorization: Bearer {{authToken}}' \
--header 'Content-Type: application/json' \
--data '{
  "phoneNumberId": "123456789012345",
  "agentId": "6894a98a7fcde123456789ab"
}'

{
  "status": true,
  "code": 200,
  "message": "Agent assigned successfully",
  "data": {
    "phoneNumberId": "123456789012345",
    "agentId": "6894a98a7fcde123456789ab"
  }
}