Delete a board

Deletes a board and its columns. The optional body controls what happens to tasks on the board: - `unassign` (default) — set `boardId` and `columnId` to null on each task. Tasks are kept. - `delete` — delete every task on the board, plus its TaskRelation, TaskLink, and TaskEvent rows. - `reassign` — move tasks to `targetBoardId` / `targetColumnId` (defaults to the target's default column). If the target column has a `taskStatus`, the task's `status` is updated to match. For `reassign`, the caller must also have Update access on the target board's tasks (`targetBoardRequired` when `targetBoardId` is missing, `targetBoardSameAsSource` when it equals the board being deleted). Requires `canDelete{Creator|Reviewer}Board`.

curl -X DELETE "https://example.com/boards/497f6eca-6276-4993-bfeb-53cbbbba6f08" \  -H "Content-Type: application/json" \  -d '{}'

{  "message": "string",  "disposition": "unassign",  "deletedTaskIds": [    "5563cfe8-4b91-4c67-9431-8019b3332db4"  ],  "reassignedTaskIds": [    "06e733d8-b9d6-42a7-ab81-ad000d62aa1b"  ]}