getCard loads the current normalized card, including assignments, labels, schedule, and location.
automations/get-trello-card.automation.ts
card accepts an ID, short link, or standard card URL. Optional account defaults to the project binding.
Returns Signal<TrelloCard> with IDs and URLs, name and description, board and list IDs, archive/watch state, ordering position, Date | null schedule and activity fields, due completion, member IDs, and normalized labels.