curl --request POST \
  --url https://fretatech.com.br/api/opportunity/{id} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "source": "primeira",
  "customer": {
    "name": "Maria da Silva",
    "email": "email@email.com",
    "phone": null
  },
  "fields": [
    {
      "label": "Data de ida",
      "value": "20/05/2026"
    }
  ],
  "external_id": "abc123",
  "description": "a"
}
'

{
  "msg": "Oportunidade criada com sucesso",
  "opportunity": {
    "id": 12,
    "external_id": "abc123",
    "description": "a",
    "source": "primeira",
    "customer": {
      "name": "Maria da Silva",
      "email": "email@email.com",
      "phone": null
    },
    "fields": [
      {
        "label": "Data de ida",
        "value": "20/05/2026"
      }
    ]
  }
}