feat(topup): add admin-only audit info to top-up logs

Thread caller IP from webhook/admin controllers through model recharge
functions and record a new RecordTopupLog entry with admin_info (server
IP, caller IP, order payment method, callback payment method, system
version). Frontend shows these fields in the expanded log row and the
IP column for admins on top-up logs, while non-admins continue to see
admin_info stripped by formatUserLogs.

controller/topup_waffo.go

@@ -357,7 +357,7 @@ func handleWaffoPayment(c *gin.Context, wh *core.WebhookHandler, result *core.Pa
 	LockOrder(merchantOrderId)
 	defer UnlockOrder(merchantOrderId)
 
-	if err := model.RechargeWaffo(merchantOrderId); err != nil {
+	if err := model.RechargeWaffo(merchantOrderId, c.ClientIP()); err != nil {
 		log.Printf("Waffo 充值处理失败: %v, 订单: %s", err, merchantOrderId)
 		sendWaffoWebhookResponse(c, wh, false, err.Error())
 		return