test: 관리자 화면 e2e를 실제 로그인 흐름으로 전환

tests/e2e/admin-smoke.spec.ts

@@ -1,12 +1,12 @@
 import { expect, test } from '@playwright/test';
-import { getAdminToken, installAdminToken } from './helpers/admin-auth';
+import { loginThroughAdminUi } from './helpers/admin-auth';
 
 const username = process.env.E2E_ADMIN_USERNAME ?? 'admin';
 const password = process.env.E2E_ADMIN_PASSWORD;
 const baseUrl = (process.env.E2E_BASE_URL ?? 'http://178.104.200.7/taxbaik').replace(/\/$/, '');
 
 test.describe('admin smoke', () => {
-  test('navigates the main admin menus without circuit errors', async ({ page, request }) => {
+  test('navigates the main admin menus without circuit errors', async ({ page }) => {
     test.skip(!password, 'E2E_ADMIN_PASSWORD is required.');
 
     const consoleErrors: string[] = [];
@@ -19,8 +19,7 @@ test.describe('admin smoke', () => {
       consoleErrors.push(error.message);
     });
 
-    const token = await getAdminToken(request, baseUrl, username, password);
-    await installAdminToken(page, token);
+    await loginThroughAdminUi(page, baseUrl, username, password);
 
     const menuChecks = [
       { path: '/admin/dashboard', content: /이번달 문의/ },