修复(#143): 邀请权益查询排序 inviteeAndInviterIds 消除 map 迭代序 flake

inviteeAndInviterSet 是 map，按 range 收集到 slice 后顺序不固定，
传给 fillGiftBenefits 的 IN (?,?) 参数随之乱序，导致 sqlmock 按位置
匹配的单测 TestQueryBenefitsKeepsDirectInviteeGift 偶现失败（本地 10
次复现约 2-4 次）。

在收集后追加 slices.Sort，让生产代码本身的下游 SQL 参数稳定；同步把
测试期望改为升序。50 次重复 + race 全绿。

Co-authored-by: multica-agent <github@multica.ai>

internal/logic/admin/invite/benefits.go

@@ -2,6 +2,7 @@ package invite
 
 import (
 	"context"
+	"slices"
 
 	modellog "github.com/perfect-panel/server/internal/model/log"
 	"github.com/perfect-panel/server/pkg/xerr"
@@ -113,6 +114,7 @@ func QueryBenefits(ctx context.Context, db *gorm.DB, relations []InviteRelation)
 	for userId := range inviteeAndInviterSet {
 		inviteeAndInviterIds = append(inviteeAndInviterIds, userId)
 	}
+	slices.Sort(inviteeAndInviterIds)
 
 	if err := fillCommissionBenefits(ctx, db, result, orderToInvitee, inviteeToInviter, orderNos, inviterIds); err != nil {
 		return nil, err

internal/logic/admin/invite/benefits_test.go

@@ -25,7 +25,7 @@ func TestQueryBenefitsCountsFamilyOwnerGiftAsInviteeGift(t *testing.T) {
 		WithArgs(33, int64(100), "family-order", 331, 332).
 		WillReturnRows(sqlmock.NewRows([]string{"object_id", "content"}))
 	mock.ExpectQuery("object_id IN").
-		WithArgs(34, int64(900), int64(200), int64(100), "family-order").
+		WithArgs(34, int64(100), int64(200), int64(900), "family-order").
 		WillReturnRows(sqlmock.NewRows([]string{"object_id", "content"}).
 			AddRow(900, `{"type":341,"order_no":"family-order","amount":7,"balance":7,"remark":"邀请赠送"}`))
 
@@ -58,7 +58,7 @@ func TestQueryBenefitsKeepsDirectInviteeGift(t *testing.T) {
 		WithArgs(33, int64(100), "direct-order", 331, 332).
 		WillReturnRows(sqlmock.NewRows([]string{"object_id", "content"}))
 	mock.ExpectQuery("object_id IN").
-		WithArgs(34, int64(200), int64(100), "direct-order").
+		WithArgs(34, int64(100), int64(200), "direct-order").
 		WillReturnRows(sqlmock.NewRows([]string{"object_id", "content"}).
 			AddRow(200, `{"type":341,"order_no":"direct-order","amount":5,"balance":5,"remark":"邀请赠送"}`))