/**
 * Pure utilities for the FormCacheSelector component.
 *
 * Mirrors Architecture §9.6.
 */
import type { FormCacheDTO } from './FormCacheSelector.types';
/**
 * Lenient field-level merge that restores a stored filter without ever
 * throwing — the resilience strategy for schema drift (FR-FFCS-011, FFCS-D006).
 *
 * Algorithm:
 *   1. If `rawJson` is null/undefined/non-object/array → return a fresh copy
 *      of `emptyFilter`.
 *   2. For every key declared in `emptyFilter`, copy `rawJson[key]` only when
 *      `typeof rawJson[key] === typeof emptyFilter[key]` — otherwise keep the
 *      default value.
 *
 * The function never mutates `emptyFilter`; callers may pass a frozen object.
 *
 * @typeParam TFilter - The expected filter shape (drives the key set).
 * @param rawJson - The opaque JSON value retrieved from the backend.
 * @param emptyFilter - Default values used for missing or type-mismatched keys.
 * @returns A new object with the same keys as `emptyFilter`.
 */
export declare function safeParse<TFilter extends Record<string, unknown>>(rawJson: unknown, emptyFilter: TFilter): TFilter;
/**
 * Returns a new array of caches sorted alphabetically by `name` (FR-FFCS-012).
 *
 * Uses `localeCompare` with `sensitivity: 'base'` so:
 *   - sorting is case-insensitive ("apple" < "Banana"),
 *   - accented Spanish characters are ordered correctly (e.g. "Año" before
 *     "Beneficios") instead of the broken codepoint order a default `<`
 *     comparator would produce.
 *
 * Pure — never mutates the input array.
 */
export declare function sortCaches(caches: FormCacheDTO[]): FormCacheDTO[];
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