chore(frontend): Initialize frontend

Simple Vue.js project with Vite + Vitest, Playwright

frontend/e2e/vue.spec.ts

@@ -0,0 +1,8 @@
+import { test, expect } from '@playwright/test';
+
+// See here how to get started:
+// https://playwright.dev/docs/intro
+test('visits the app root url', async ({ page }) => {
+  await page.goto('/');
+  await expect(page.locator('h1')).toHaveText('You did it!');
+})