/**
 * Fuzzy search helper for catalog lookups.
 */
/**
 * Case-insensitive substring search across multiple fields of an item.
 * Returns all items where at least one specified field contains the query.
 * Returns all items if query is empty.
 * Safely skips null/undefined field values.
 */
export declare function fuzzySearch<T extends object>(items: T[], query: string, fields: (keyof T & string)[]): T[];
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