refactor: 流量系统重构 — 增量累加算法 + 日粒度缓冲 + 旧详单清理
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核心改造: - 增量算法:流量计算从覆盖式改为增量累加(gateway - lastReading),支持上游运营商重置检测 - 日流量缓冲:insertDataUsageRecord 改为 Redis INCRBYFLOAT,每日凌晨落盘到 tb_card_daily_usage - 运营商:新增 data_reset_day 字段(联通=27,其余=1) - IoT卡:新增 last_gateway_reading_mb 字段存储上次网关读数 - 查询层:新建 TrafficQueryService 合并 Redis(今日)+ DB(历史)数据源 - 清理:删除 DataUsageRecord model/store,移除 polling_handler 旧引用 迁移:000094-000097(carrier字段、iot_card字段、数据初始化、日流量表)
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@@ -15,6 +15,7 @@ type Carrier struct {
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BillingDay int `gorm:"column:billing_day;type:int;default:1;comment:运营商计费日(用于流量查询接口的计费周期计算,联通=27,其他=1)" json:"billing_day"`
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RealnameLinkType string `gorm:"column:realname_link_type;type:varchar(20);not null;default:'none';comment:实名链接类型 none-不支持 template-模板URL gateway-Gateway接口" json:"realname_link_type"`
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RealnameLinkTemplate string `gorm:"column:realname_link_template;type:varchar(500);default:'';comment:实名链接模板URL" json:"realname_link_template"`
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DataResetDay int `gorm:"column:data_reset_day;type:int;not null;default:1;comment:上游流量重置日(1-28) 运营商每月清零网关计数器的日期" json:"data_reset_day"`
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}
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// TableName 指定表名
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