The cards assigned to the account the request acts as — with an API key, the
account that issued it. Only work still expected of it: a card that is done, or
archived, or sits in an archived area or on an archived board is left out, and
so is one on a board the account is no longer on.
Earliest due first, then the cards with no date. At most 500.
The dashboard groups these into overdue, this week and later. That grouping is
not in the response, because it depends on what "today" is where you are; work
it out against your own clock.
Each card's id, name and dueDate; boardId and boardName; areaId and areaName; its labels as id and name; and checklist, the done and total of the checklist in its description.