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/next.config.mjs

@@ -0,0 +1,30 @@
+import createNextIntlPlugin from 'next-intl/plugin';
+
+const withNextIntl = createNextIntlPlugin('./src/i18n.ts');
+
+/** @type {import('next').NextConfig} */
+const nextConfig = {
+  // Enable React strict mode for better development experience
+  reactStrictMode: true,
+
+  // Configure image optimization
+  images: {
+    remotePatterns: [
+      {
+        protocol: 'https',
+        hostname: '*.gravatar.com',
+      },
+    ],
+  },
+
+  // Transpile packages for monorepo
+  transpilePackages: ['@tos/shared'],
+
+  // Experimental features
+  experimental: {
+    // Optimize package imports for better tree-shaking
+    optimizePackageImports: ['lucide-react', '@radix-ui/react-icons'],
+  },
+};
+
+export default withNextIntl(nextConfig);