feat: basic test coverage

tests/quick-search.spec.ts

@@ -1,4 +1,5 @@
-import { test, expect, type Page } from '@playwright/test';
+import { expect, type Page } from '@playwright/test';
+import { test } from './libs/playwright.js';
 import { loadPage } from './libs/load-page.js';
 import { withCtrlOrMeta } from './libs/keyboard.js';
 import { newPage } from './libs/page-logic.js';