{
  "endpoint": "issueInvoice",
  "description": "Zeilenrabatt, gerundet wie auf dem PDF",
  "request": {
    "idempotencyKey": "ex-3",
    "customerId": "customer_example",
    "taxScheme": "normal",
    "priceMode": "net",
    "serviceStart": "2026-09-14",
    "items": [
      {
        "description": "Kaffee",
        "quantity": 3,
        "unitPriceCents": 999,
        "vatRate": 20,
        "discountPct": 10
      }
    ]
  },
  "expected": {
    "ok": true,
    "totals": {
      "netCents": 2697,
      "vatCents": 539,
      "grossCents": 3236
    }
  }
}