curl --request GET \
  --url http://localhost:3000/v1/scanner/carts

{
  "carts": [
    {
      "id": "<string>",
      "display_id": "<string>",
      "label": "<string>",
      "color": "<string>",
      "animal": "<string>",
      "location": "<string>",
      "order_id": "<string>",
      "active_tote_id": "<string>",
      "totes": [
        "<string>"
      ],
      "tote_count": 123,
      "created_at": "<string>",
      "updated_at": "<string>"
    }
  ],
  "total": 123
}