/**
 * Cupola placement tool. Mounts when the palette activates the cupola kind;
 * listens for `roof:*` events; on click commits a new `CupolaNode` parented
 * to the targeted segment with segment-local coordinates. Mirrors box-vent.
 */
declare const CupolaTool: () => import("react").JSX.Element;
export default CupolaTool;
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