/**
 * Typed, SSR-safe localStorage helpers for the database admin UI.
 *
 * All keys live under the `agentnative.dbadmin.*` namespace. Per-table grid
 * state (column widths, sort, filters, page size) is persisted so reopening a
 * table restores the user's last view.
 */
import type { DbAdminFilter, DbAdminSort } from "../../db-admin/types.js";
/** Read and JSON-parse a namespaced key, returning `fallback` on any failure. */
export declare function getLS<T>(key: string, fallback: T): T;
/** JSON-serialize and write a namespaced key. No-op when storage is absent. */
export declare function setLS<T>(key: string, value: T): void;
/** Remove a namespaced key. */
export declare function removeLS(key: string): void;
export interface GridState {
    /** Column name → pixel width. */
    columnWidths?: Record<string, number>;
    sort?: DbAdminSort[];
    filters?: DbAdminFilter[];
    pageSize?: number;
}
export declare function loadGridState(table: string): GridState;
export declare function saveGridState(table: string, state: GridState): void;
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