Rewrite on the Bennett platform: Spring Boot + Vite/React SPA

Replaces the Next.js app. Same site, same look; the parts that were decisions rather
than markup now live in Java.

- catalogue, curated order, category filter and image URLs move from a TypeScript array
  into Postgres behind /api/products and /api/categories
- contact form uses the shared platform-starter-contact: validate, RECORD, send, then
  fan out to n8n. Recording first means a relay outage costs a notification, not an enquiry
- PageMetaController rewrites title/description/OG per route, replacing what Next's SSR
  gave crawlers and link-preview scrapers
- 50MB of photos leave the repo for the MinIO bucket, re-encoded to webp (14MB) with EXIF
  (including phone GPS) stripped
- fixes a catalogue typo: 'Strawberry Pie' was category 'Pies', which no filter matched, so
  it was unreachable unless browsing All

Co-Authored-By: Claude Opus 4.8 <[email protected]>
Claude-Session: https://claude.ai/code/session_01XXKjx7FNyRVAjU8dgB5KhN

frontend/src/pages/NotFound.tsx

@@ -0,0 +1,30 @@
+import { Link } from 'react-router-dom';
+
+const NotFoundPage = () => (
+  <div className="bg-bakery-50">
+    <div className="container mx-auto px-4 py-24 md:py-32 text-center">
+      <h1 className="font-adbhashitha text-4xl md:text-5xl text-bakery-900 mb-6">
+        We could not find that page
+      </h1>
+      <p className="text-bakery-800 mb-10">
+        It may have moved. The menu, our story, and how to reach us are all still here.
+      </p>
+      <div className="flex flex-col sm:flex-row gap-3 justify-center">
+        <Link
+          to="/"
+          className="bg-bakery-600 hover:bg-bakery-700 text-white px-8 py-3.5 rounded-full font-medium tracking-wide inline-block transition"
+        >
+          Back home
+        </Link>
+        <Link
+          to="/products"
+          className="border border-bakery-300 hover:bg-bakery-100 text-bakery-700 px-8 py-3.5 rounded-full font-medium tracking-wide inline-block transition"
+        >
+          See the menu
+        </Link>
+      </div>
+    </div>
+  </div>
+);
+
+export default NotFoundPage;