chore: 并入 iotlcm-worker-svr 历史到 worker-svr/（原提交 96f0f4e）

worker-svr/internal/model/traffic_usage.go

@@ -0,0 +1,19 @@
+package model
+
+import "time"
+
+type TrafficUsageBase struct {
+	Iccid       string
+	UsageMb     float64
+	PackageCode string
+}
+
+type TrafficUsageDailyItem struct {
+	TrafficUsageBase
+	Date time.Time
+}
+
+type TrafficUsageMonthlyItem struct {
+	TrafficUsageBase
+	Month time.Time
+}