curl --request POST \
  --url https://api.buildwithchirp.com/v1/whatsapp/groups \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "whatsappPhoneNumberId": "wapn_2DbBs7GWhGvVNJGrDXr5RG0",
  "subject": "Customer Support",
  "description": "Support channel for premium customers",
  "joinApprovalMode": "auto_approve"
}
'

{
  "group": {
    "id": "<string>",
    "metaGroupId": "<string>",
    "subject": "<string>",
    "description": "<string>",
    "inviteLink": "<string>",
    "suspended": true,
    "totalParticipantCount": 123,
    "whatsappPhoneNumberId": "<string>",
    "createdAt": "<string>"
  }
}