공통 테이블 헤더 배경 토큰 적용

adminfront/src/features/tenants/routes/TenantUsersPage.tsx

@@ -32,6 +32,7 @@ import {
   TableHeader,
   TableRow,
 } from "../../../components/ui/table";
+import { commonStickyTableHeaderClass } from "../../../../../common/ui/table";
 import { toast } from "../../../components/ui/use-toast";
 import { fetchTenant, fetchUsers, updateUser } from "../../../lib/adminApi";
 import { t } from "../../../lib/i18n";
@@ -124,7 +125,7 @@ function TenantUsersPage() {
         <div className="flex-1 rounded-md border overflow-hidden flex flex-col">
           <div className="flex-1 overflow-auto relative custom-scrollbar">
             <Table>
-              <TableHeader className="sticky top-0 z-10 bg-secondary shadow-sm">
+              <TableHeader className={commonStickyTableHeaderClass}>
                 <TableRow>
                   <TableHead>
                     {t("ui.admin.tenants.members.table.name", "NAME")}