按甲方字段补齐实时相对时长持久化

yeg

2026-09-09 a011865a0989b51d5818f2791d04790b6408acd1

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package com.battery.device.api.model;
 
/** 适配器最近一次观测到的设备连接事实。 */
public enum DeviceConnectionStatus
{
    ONLINE,
    OFFLINE
}