Interface DragRuntimeState

src/hooks/usePanelDrag.ts:89–97

}

interface DragRuntimeState {
  activeId: string | null;
  sourceContainerIdx: number;
  preferredContainerIdx: number;
  latestClientX: number;
  latestClientY: number;
  projectedVisibleOrders: string[][] | null;
  lastTargetKey: string;
}

export interface PanelDragOverlayData {
  title: string;