// Crear un ticket
const ticket = await futura.tickets.create({
  event_id: "evt_12345",
  type: "general",
  holder: {
    email: "user@example.com",
    name: "Juan García"
  }
});

// ticket.id → "tkt_abc123"
// ticket.qr_code → "data:image/png;base64,..."
// ticket.status → "valid"