export interface StaleDoc {
    docPath: string;
    docMtime: Date;
    sourceMtime: Date;
    staleDays: number;
    suggestion: string;
}
/**
 * 获取源码目录最近修改时间（基于 git）
 */
export declare function getSourceLastModified(projectRoot: string): Promise<Date>;
/**
 * 检测全局分析文档是否过期
 */
export declare function detectStaleGlobalDocs(projectRoot: string): Promise<StaleDoc[]>;
/**
 * 打印过期文档报告
 */
export declare function printStaleDocReport(docs: StaleDoc[]): void;
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