refactor(adminfront): replace sonner with custom use-toast matching devfront UX policy

adminfront/src/features/user-groups/routes/TenantUserGroupsTab.tsx

@@ -20,7 +20,7 @@ import {
 import * as React from "react";
 import { useMemo, useState } from "react";
 import { Link, useNavigate, useParams } from "react-router-dom";
-import { toast } from "sonner";
+import { toast } from "../../../components/ui/use-toast";
 import { Badge } from "../../../components/ui/badge";
 import { Button } from "../../../components/ui/button";
 import {
@@ -266,7 +266,7 @@ const MemberTable: React.FC<{
                 <Users size={40} />
                 <p>{t("msg.admin.users.list.empty", "멤버가 없습니다.")}</p>
                 <Button
-                  variant="link"
+                  variant="outline"
                   size="sm"
                   onClick={onRefresh}
                   className="mt-2"
@@ -369,7 +369,6 @@ const UserAddDialog: React.FC<{
           description: res.initialPassword
             ? `초기 비밀번호: ${res.initialPassword}`
             : undefined,
-          duration: 10000,
         },
       );
 
@@ -776,7 +775,7 @@ const TenantTreeRow: React.FC<{
               onClick={() => {
                 if (node.type === "USER_GROUP") {
                   // User groups have a different detail path
-                  const baseTenantId = node.tenantId || tenantId;
+                  const baseTenantId = (node as any).tenantId || (node as any).parentId || "";
                   navigate(`/tenants/${baseTenantId}/organization/${node.id}`);
                 } else {
                   navigate(`/tenants/${node.id}`);

adminfront/src/features/user-groups/routes/UserGroupDetailPage.tsx

@@ -3,7 +3,7 @@ import type { AxiosError } from "axios";
 import { ArrowLeft, Shield, Trash2, UserPlus, Users } from "lucide-react";
 import { useState } from "react";
 import { Link, useParams } from "react-router-dom";
-import { toast } from "sonner";
+import { toast } from "../../../components/ui/use-toast";
 import { Badge } from "../../../components/ui/badge";
 import { Button } from "../../../components/ui/button";
 import {
@@ -189,7 +189,7 @@ export function UserGroupDetailPage() {
           <p>
             Error:{" "}
             {(error as AxiosError<{ error?: string }>)?.response?.data?.error ||
-              error.message ||
+              (error as any)?.message ||
               "Not found"}
           </p>
         </div>