feat: 完善平台总后台模块

backend/api/internal/models/report_metric_snapshot.go

@@ -0,0 +1,19 @@
+package models
+
+import (
+	"git.apinb.com/bsm-sdk/core/database"
+	"time"
+)
+
+// ReportMetricSnapshot 对应 report_metric_snapshot，保存指标快照。
+type ReportMetricSnapshot struct {
+	Entity
+	MetricCode  string    `gorm:"column:metric_code;type:varchar(64);not null;index" json:"metric_code"`
+	ScopeType   string    `gorm:"column:scope_type;type:varchar(32);not null" json:"scope_type"`
+	ScopeID     uint64    `gorm:"column:scope_id;not null;default:0;index" json:"scope_id"`
+	StatAt      time.Time `gorm:"column:stat_at;type:timestamptz;not null;index" json:"stat_at"`
+	MetricValue string    `gorm:"column:metric_value;type:varchar(128);not null" json:"metric_value"`
+}
+
+func init()                                           { database.AppendMigrate(&ReportMetricSnapshot{}) }
+func (table *ReportMetricSnapshot) TableName() string { return "report_metric_snapshot" }