/**
 * @license
 * Copyright 2026 Qwen
 * SPDX-License-Identifier: Apache-2.0
 */
/**
 * Minimal stderr logger. The repository bans `console`; a daemon still needs
 * operator-facing diagnostics, and stderr is the right channel for them
 * (stdout carries the machine-readable listening line only).
 */
export type LogLevel = 'debug' | 'info' | 'warn' | 'error';
export declare class LiveLogger {
    private readonly minLevel;
    constructor(minLevel?: LogLevel);
    get debugEnabled(): boolean;
    private write;
    debug(message: string): void;
    info(message: string): void;
    warn(message: string): void;
    error(message: string): void;
}