/**
 * The chat history overlay, reproducing TORUK Core's `SessionsListPanel`
 * (`features/home/components/SessionsListPanel.jsx` +
 * `styles/history/useHistoryListStyles.js` / `useHistoryDialogStyles.js`).
 *
 * Core presents history as a centred modal, not a side panel: a fixed 33.875rem
 * × 21rem card whose top 3rem is a borderless search field with a close button,
 * over a scrolling list bucketed into Today / Yesterday / Last week / Older by
 * last activity. It pages as it is scrolled rather than stopping at the first
 * read.
 *
 * This replaces the SDK's earlier right-hand panel, which was a different shape
 * with hardcoded colours, hand-drawn SVGs, no grouping and no search — and which
 * the full-page templates never rendered at all, so history was unreachable
 * outside the bubble.
 *
 * One overlay serves every surface, so the sidebar's search field, its View all
 * row and the bubble's History menu item all open the same thing, backed by the
 * one session store.
 */
type HistoryOverlayProps = {
    /**
     * Cover the viewport rather than the chat area. Core's history is a viewport
     * modal, which is right for a full-page mount; a bubble embed must stay inside
     * its own panel and not black out the host page.
     */
    viewport?: boolean;
};
export declare const HistoryOverlay: (props: HistoryOverlayProps) => import("solid-js").JSX.Element;
export {};