feat: 完善平台总后台模块

backend/api/internal/models/wallet_recharge.go

@@ -0,0 +1,14 @@
+package models
+
+import "git.apinb.com/bsm-sdk/core/database"
+
+// WalletRecharge 对应 wallet_recharge，保存充值记录。
+type WalletRecharge struct {
+	Entity
+	WalletID uint64 `gorm:"column:wallet_id;not null;index" json:"wallet_id"`
+	Amount   int64  `gorm:"column:amount;not null" json:"amount"`
+	Channel  string `gorm:"column:channel;type:varchar(32);not null" json:"channel"`
+}
+
+func init()                                     { database.AppendMigrate(&WalletRecharge{}) }
+func (table *WalletRecharge) TableName() string { return "wallet_recharge" }