refactor: migrate to monorepo structure with Docker, PocketBase, and e2e tests

- Reorganize into apps/, packages/, docs/, e2e/, pocketbase/ directories
- Add Dockerfiles for web, worker, and PocketBase services
- Add docker-compose.yml for local orchestration
- Add turbo.json for monorepo task management
- Add Playwright e2e test infrastructure
- Add PocketBase backend with migrations
- Remove Vite/Next.js/ESLint/PostCSS config files
- Update package.json with workspace dependencies
- Add .env.example and .dockerignore

apps/web/app/api/analytics/vitals/route.ts

@@ -0,0 +1,22 @@
+import { NextRequest, NextResponse } from 'next/server';
+
+// POST /api/analytics/vitals — Receive Web Vitals metrics
+export async function POST(request: NextRequest) {
+  try {
+    const body = await request.json();
+
+    // Log to console in development for debugging
+    if (process.env.NODE_ENV === 'development') {
+      console.log('[Web Vitals]', body);
+    }
+
+    // In production, this would send to your analytics service
+    // (e.g., Google Analytics, PostHog, or custom backend)
+    // For now, just acknowledge receipt
+
+    return NextResponse.json({ received: true });
+  } catch {
+    // Silently ignore malformed requests
+    return NextResponse.json({ received: false }, { status: 400 });
+  }
+}