import Database from "better-sqlite3";
/**
 * Database connection manager with connection pooling and automatic schema initialization
 */
export declare class DatabaseConnection {
    private static connections;
    /**
     * Get or create a database connection for the given file path
     */
    static getConnection(dbPath: string): Database.Database;
    /**
     * Close a specific database connection
     */
    static closeConnection(dbPath: string): void;
    /**
     * Close all database connections
     */
    static closeAllConnections(): void;
    /**
     * Execute a function within a transaction
     */
    static transaction<T>(db: Database.Database, fn: () => T): T;
    /**
     * Backup database to a file
     */
    static backup(dbPath: string, backupPath: string): void;
}