feat: 管理后台仪表盘统计卡片接入真实数据
新增 /api/admin/stats 聚合接口,填充运行时长、活跃设备、今日流量、在线节点四项卡片: - VpnService 记录启动时间,提供 StartedAt/TotalLiveTraffic 方法 - 新增 TrafficStat 模型,客户端断开时 upsert 当日 rx/tx 流量(持久化) - 前端 AdminView 调用 stats 接口并每 30 秒自动刷新
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@@ -40,7 +40,7 @@ func Init(cfg *config.DatabaseConfig) error {
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return fmt.Errorf("数据库连接失败: %w", err)
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}
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if err := DB.AutoMigrate(&model.User{}, &model.Session{}, &model.VpnSetting{}, &model.VpnReservation{}); err != nil {
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if err := DB.AutoMigrate(&model.User{}, &model.Session{}, &model.VpnSetting{}, &model.VpnReservation{}, &model.TrafficStat{}); err != nil {
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return fmt.Errorf("数据库迁移失败: %w", err)
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}
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