feat: complete tOS project with HR, LEAN, Dashboard and Integrations modules

Full enterprise web operating system including:
- Next.js 14 frontend with App Router, i18n (DE/EN), shadcn/ui
- NestJS 10 backend with Prisma, JWT auth, Swagger docs
- Keycloak 24 SSO with role-based access control
- HR module (employees, time tracking, absences, org chart)
- LEAN module (3S planning, morning meeting SQCDM, skill matrix)
- Integrations module (PlentyONE, Zulip, Todoist, FreeScout, Nextcloud, ecoDMS, GembaDocs)
- Dashboard with customizable drag & drop widget grid
- Docker Compose infrastructure (PostgreSQL 16, Redis 7, Keycloak 24)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

apps/web/vitest.config.ts

@@ -0,0 +1,19 @@
+import { defineConfig } from 'vitest/config';
+import react from '@vitejs/plugin-react';
+import path from 'path';
+
+export default defineConfig({
+  plugins: [react()],
+  test: {
+    environment: 'jsdom',
+    globals: true,
+    setupFiles: ['./src/test/setup.ts'],
+    include: ['src/**/*.{test,spec}.{ts,tsx}'],
+    css: false,
+  },
+  resolve: {
+    alias: {
+      '@': path.resolve(__dirname, './src'),
+    },
+  },
+});