修复(#38): commission_refund 收窄到只查 type=333（移除 337/338 提现退佣混入）

Closes HIF-38

owner 业务定义：commission_refund 这个分类只应返回「下级退单导致用户拿到的佣金被扣回」记录。

改动：
- queryWithdrawalLogLogic.go: ?biz_type=commission_refund 分支 SQL 过滤从 IN(333,337,338) 改为 = 333
- 同步更新 logic/handler 单测

不在范围:
- /commission_return_log（新推荐接口）继续返回 333/337/338 — 前端暂未切，owner 决定不动
- 337/338 不另外开 UI 入口 — 提现记录 status 字段(rejected/cancelled)已表达

internal/logic/public/user/queryWithdrawalLogLogic.go

@@ -3,6 +3,7 @@ package user
 import (
 	"context"
 
+	"github.com/perfect-panel/server/internal/model/log"
 	"github.com/perfect-panel/server/internal/model/user"
 	"github.com/perfect-panel/server/internal/svc"
 	"github.com/perfect-panel/server/internal/types"
@@ -90,7 +91,7 @@ func (l *QueryWithdrawalLogLogic) queryWithdrawalLogs(userID int64, page, size i
 
 func (l *QueryWithdrawalLogLogic) queryCommissionRefundLogs(userID int64, page, size int) (*types.QueryWithdrawalLogListResponse, error) {
 	queryLogic := NewQueryCommissionReturnLogLogic(l.ctx, l.svcCtx)
-	rows, total, err := queryLogic.queryCommissionReturnLogRecords(userID, page, size)
+	rows, total, err := queryLogic.queryCommissionReturnLogRecordsByEventTypes(userID, page, size, log.CommissionTypeRefund)
 	if err != nil {
 		return nil, err
 	}