feat: 完善平台总后台模块

backend/api/internal/models/dev_telemetry.go

@@ -0,0 +1,18 @@
+package models
+
+import (
+	"git.apinb.com/bsm-sdk/core/database"
+	"time"
+)
+
+// DevTelemetry 对应 dev_telemetry，保存设备遥测摘要。
+type DevTelemetry struct {
+	Entity
+	SmartCylinderValveIdentity string    `gorm:"column:smart_cylinder_valve_identity;type:varchar(36);not null;index" json:"smart_cylinder_valve_identity"`
+	ReportedAt                 time.Time `gorm:"column:reported_at;type:timestamptz;not null;index" json:"reported_at"`
+	Payload                    string    `gorm:"column:payload;type:jsonb;not null;default:'{}'" json:"payload"`
+	QualityFlag                string    `gorm:"column:quality_flag;type:varchar(32);not null;default:'normal'" json:"quality_flag"`
+}
+
+func init()                                   { database.AppendMigrate(&DevTelemetry{}) }
+func (table *DevTelemetry) TableName() string { return "dev_telemetry" }