import type Database from 'better-sqlite3';
import { type FtsResult, type LabelFilter } from './fts-store-search.js';
export interface HybridSearchResult extends FtsResult {
    combinedScore: number;
    matchStrategy: 'fts' | 'like' | 'fuzzy';
}
/**
 * Hybrid search combining three strategies:
 *  1. FTS5 (trigram) BM25 match via `ftsSearch`
 *  2. LIKE fallback for short queries (≤3 chars) or when FTS returns 0 results
 *  3. In-memory fuzzy character-sequence scoring applied to all candidates
 *
 * Results are deduped by id (highest combinedScore wins), re-ranked, and
 * trimmed to `limit`. The existing `ftsSearch` is left unchanged.
 */
export declare function hybridSearch(db: Database.Database, query: string, limit: number, label?: LabelFilter): HybridSearchResult[];
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