curl --request GET \
  --url https://api.tupana.ai/v1/scheduled-documents \
  --header 'Authorization: <api-key>'

{
  "count": 25,
  "next": "https://api.tupana.ai/v1/scheduled-documents?master_entity_id=123&page=2",
  "previous": null,
  "results": [
    {
      "id": 789,
      "sender": {
        "id": 123,
        "name": "Empresa Ejemplo SpA",
        "rut": "76543210-1"
      },
      "receiver": {
        "id": 456,
        "name": "Cliente ABC Ltda",
        "rut": "12345678-9"
      },
      "dte_type": {
        "id": 1,
        "code": "33",
        "description": "Factura Electrónica"
      },
      "frequency": "monthly",
      "frequency_display": "Mensual",
      "day_of_month": 15,
      "day_of_week": null,
      "next_execution": "2024-02-15T10:00:00Z",
      "status": "active",
      "status_display": "Activo",
      "amount": 100000,
      "currency": "CLP",
      "currency_day": 10,
      "completed_occurrences": 5,
      "max_occurrences": null,
      "start_date": "2024-02-01",
      "emission_day_adjustment": "none",
      "end_type": "never",
      "end_date": "2024-12-31",
      "details": [
        {
          "id": 1,
          "item_name": "Servicio mensual de consultoría",
          "item_description": "Consultoría especializada en tecnología",
          "quantity": 1,
          "unit_price": 100000,
          "item_total": 100000,
          "unit_of_measurement": "UN",
          "item_code": "PROD-001",
          "item_type_code": "1"
        }
      ],
      "references": [
        {
          "id": 1,
          "dte_type_code": "33",
          "reference_folio": "123",
          "reference_date": "2024-01-15",
          "reference_reason": "ANULA DOCUMENTO DE LA REFERENCIA"
        }
      ],
      "created_at": "2024-01-15T10:00:00Z",
      "updated_at": "2024-01-20T15:30:00Z"
    }
  ]
}