Response envelope

Success responses wrap the payload in data:

json

{ "data": { "id": "…" } }

Paginated responses add meta.pagination:

json

{
  "data": [],
  "meta": {
    "pagination": {
      "page": 1,
      "totalPages": 4,
      "pageSize": 25,
      "total": 87,
      "hasMore": true,
      "nextCursor": "eyJ…"
    }
  }
}

page and totalPages appear on page-based endpoints, nextCursor on cursor-based ones. Deletes return 204 with no body.