/**
 * SQLite 记忆存储适配器
 *
 * 使用 better-sqlite3 实现 MemoryStore 接口
 * 提供高性能的本地数据库存储
 */
import type { MemoryIndex, MemoryStore, SessionLog } from '../memory-types.js';
export declare class SqliteMemoryStore implements MemoryStore {
    private db;
    private dbPath;
    constructor(projectRoot: string, dbName?: string);
    private stmts;
    private prepareStatements;
    private initSchema;
    load(): Promise<MemoryIndex>;
    save(index: MemoryIndex): Promise<void>;
    clear(): Promise<void>;
    saveSessionLog(sessionId: string, log: SessionLog): Promise<void>;
    loadSessionLog(sessionId: string): Promise<SessionLog | null>;
    listSessionIds(): Promise<string[]>;
    /**
     * 关闭数据库连接
     */
    close(): void;
}
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