curl -X GET 'https://app.yampi.ai/api/v1/accounts/1/companies/10' \
  -H 'api_access_token: TU_TOKEN' \
  -H 'Content-Type: application/json'

{
  "id": 10,
  "name": "Acme Inc",
  "contacts_count": 3,
  "domain": "acme.com",
  "description": "Cliente enterprise",
  "avatar_url": "https://app.yampi.ai/...",
  "created_at": "2026-03-13T12:00:00Z",
  "updated_at": "2026-03-13T14:00:00Z",
  "contacts": [
    { "id": 1, "name": "Juan", "email": "juan@acme.com", "thumbnail": null }
  ]
}