track()

const result = await nippy.track({
  userId: 'user-123',
  campaignId: 'camp-abc',
  eventType: 'card.purchase.completed',
  properties: { value: 500 },
  occurredAt: new Date().toISOString()
})

curl -X POST https://ms.nippy.la/v1/public/events/track \
  -H "x-api-key: npk_live_xxx" \
  -H "Content-Type: application/json" \
  -d '{
    "userId": "user-123",
    "campaignId": "camp-abc",
    "eventType": "card.purchase.completed",
    "properties": { "value": 500 },
    "occurredAt": "2026-05-01T12:00:00.000Z"
  }'