[UIPKGE] State + handlers for the `@uipkge/board` compositional primitive. Returns a `state` (draggingId / dragOverLaneId / justMovedId), `handlers` to bind on lanes and cards (onDragStart / onLaneDragOver / onLaneDragLeave / onLaneDrop / onDragEnd), and an imperative `moveItem(itemId, toLaneId, toIndex?)` โ
pnpm dlx shadcn@latest add "https://registry.directory/r/uday-a/use-board.json"