demand summary property price without transaction

This example exists to prove the schema refuses something the specification forbids. Validator output at build time:

• /bands must have required property 'transaction'
• / must match "then" schema

{
  "specVersion": "0.1",
  "type": "demand-summary",
  "id": "urn:uuid:x-no-transaction",
  "created": "2026-10-11T09:00:00Z",
  "holder": {
    "id": "https://www.livinisto.sk",
    "name": "LivinIsto"
  },
  "category": "property",
  "country": "SK",
  "currency": "EUR",
  "bands": {
    "propertyType": "flat",
    "rooms": {
      "from": 2,
      "to": 2
    },
    "price": {
      "from": 145000,
      "to": 195000
    },
    "area": {
      "regions": [
        "SK-NI"
      ]
    }
  },
  "buyers": 14,
  "asOf": "2026-10-11T09:00:00Z"
}