NotificationListResponse(NotificationListResponse)

{
    "items": [
        {
            "id": 1,
            "is_read": false,
            "timestamp": "2025-09-25T10:30:00Z",
            "title": "你的职业测评报告已生成",
            "type": "achievement"
        }
    ],
    "total": 0,
    "unread_count": 0
}