export type NotificationType = 'task_status_changed' | 'task_created' | 'requirement_updated' | 'spec_generated' | 'code_executed' | 'plan_generated' | 'iteration_created';
export interface Notification {
    id: string;
    type: NotificationType;
    title: string;
    message: string;
    actor: string;
    timestamp: string;
    iteration?: string;
    task?: string;
    metadata?: Record<string, unknown>;
}
/**
 * 发送通知（记录变更事件）
 */
export declare function sendNotification(cwd: string, notification: Omit<Notification, 'id' | 'actor' | 'timestamp'>): Promise<Notification>;
/**
 * 获取所有通知（按时间倒序）
 */
export declare function getNotifications(cwd: string, options?: {
    unreadOnly?: boolean;
}): Promise<Notification[]>;
/**
 * 标记通知为已读
 */
export declare function markAsRead(cwd: string, notificationId: string): Promise<void>;
/**
 * 标记所有通知为已读
 */
export declare function markAllAsRead(cwd: string): Promise<number>;
/**
 * 清除过期通知（默认保留 30 天）
 */
export declare function cleanupOldNotifications(cwd: string, maxAgeDays?: number): Promise<number>;
/**
 * 格式化通知为可读文本
 */
export declare function formatNotification(n: Notification): string;
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