feat: 完善平台总后台模块

backend/api/internal/models/wallet_withdrawal.go

@@ -0,0 +1,14 @@
+package models
+
+import "git.apinb.com/bsm-sdk/core/database"
+
+// WalletWithdrawal 对应 wallet_withdrawal，保存提现记录。
+type WalletWithdrawal struct {
+	Entity
+	WalletID          uint64 `gorm:"column:wallet_id;not null;index" json:"wallet_id"`
+	Amount            int64  `gorm:"column:amount;not null" json:"amount"`
+	BankAccountMasked string `gorm:"column:bank_account_masked;type:varchar(128);not null;default:''" json:"bank_account_masked"`
+}
+
+func init()                                       { database.AppendMigrate(&WalletWithdrawal{}) }
+func (table *WalletWithdrawal) TableName() string { return "wallet_withdrawal" }