feat(community): add public /community page with aggregated stats UI

Server-rendered page displaying anonymized community statistics:
suppressed state with progress bar, persona distribution, axis
quartile ranges, and AI tool adoption metrics.

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

Author: devakone

apps/web/src/app/community/layout.tsx

@@ -0,0 +1,34 @@
+import Link from "next/link";
+
+/**
+ * Lightweight layout for the public community page.
+ * No auth required, minimal header with app logo/link.
+ */
+export default function CommunityLayout({
+  children,
+}: {
+  children: React.ReactNode;
+}) {
+  return (
+    <div className="min-h-screen bg-[#faf9fc]">
+      {/* Minimal header */}
+      <header className="border-b border-black/5 bg-white/80 backdrop-blur-sm">
+        <div className="mx-auto flex max-w-5xl items-center justify-between px-6 py-3">
+          <Link
+            href="/"
+            className="text-sm font-semibold tracking-tight text-zinc-900 transition hover:text-violet-600"
+          >
+            Vibe Coding Profiler
+          </Link>
+          <Link
+            href="/login"
+            className="rounded-full bg-gradient-to-r from-violet-600 to-indigo-500 px-4 py-1.5 text-xs font-semibold text-white shadow-sm transition hover:brightness-110"
+          >
+            Get your VCP
+          </Link>
+        </div>
+      </header>
+      <main>{children}</main>
+    </div>
+  );
+}