feat: 完善平台总后台模块

backend/api/internal/models/fin_reconciliation.go

@@ -0,0 +1,17 @@
+package models
+
+import (
+	"git.apinb.com/bsm-sdk/core/database"
+	"time"
+)
+
+// FinReconciliation 对应 fin_reconciliation，保存渠道对账记录。
+type FinReconciliation struct {
+	Entity
+	Channel          string    `gorm:"column:channel;type:varchar(32);not null;index" json:"channel"`
+	BillDate         time.Time `gorm:"column:bill_date;type:date;not null" json:"bill_date"`
+	DifferenceAmount int64     `gorm:"column:difference_amount;not null;default:0" json:"difference_amount"`
+}
+
+func init()                                        { database.AppendMigrate(&FinReconciliation{}) }
+func (table *FinReconciliation) TableName() string { return "fin_reconciliation" }