获取清理服务状态

{
    "code": 1,
    "message": "获取清理服务状态成功",
    "language": "zh-CN",
    "timestamp": 1697548800000,
    "data": {
        "isRunning": true,
        "daysToKeep": 30,
        "intervalHours": 24,
        "lastCleanupTime": "2023-10-17T02:00:00Z",
        "nextCleanupTime": "2023-10-18T02:00:00Z",
        "lastCleanupResult": {
            "deletedCount": 1250,
            "duration": 45,
            "success": true
        },
        "totalCleanupsExecuted": 45,
        "averageCleanupDuration": 38
    }
}