/**
 * KnowledgeRepository — 上层抽象，不感知具体存储引擎。
 * 通过 StorageProvider SPI 委托所有持久化操作。
 */
import type { KnowledgeEntry, EntryStatus, KnowledgeType } from '../types/index.js';
import type { StorageProvider, SemanticQuery, SearchResult, SaveOptions } from './storage-provider.js';
export declare class KnowledgeRepository {
    private readonly provider;
    constructor(provider: StorageProvider);
    save(entry: KnowledgeEntry, options?: SaveOptions): Promise<boolean>;
    findById(id: string): Promise<KnowledgeEntry | null>;
    search(query: SemanticQuery): Promise<SearchResult[]>;
    updateStatus(id: string, status: EntryStatus): Promise<void>;
    getVersionHistory(id: string): Promise<KnowledgeEntry[]>;
    findByType(type: KnowledgeType): Promise<KnowledgeEntry[]>;
    fullTextSearch(query: string, limit?: number): Promise<KnowledgeEntry[]>;
    findAll(): Promise<KnowledgeEntry[]>;
    delete(id: string): Promise<void>;
    count(): Promise<number>;
    close(): Promise<void>;
}
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