feat: Implement secure email/password authentication with user registration, API rate limiting, and dynamic homepage navigation.

app/(auth)/layout.tsx

@@ -1,7 +1,17 @@
-export default function AuthLayout({
+import { redirect } from 'next/navigation';
+import { auth } from '@/lib/auth';
+
+export default async function AuthLayout({
   children,
 }: {
   children: React.ReactNode;
 }) {
+  const session = await auth();
+
+  // If already logged in, redirect to dashboard
+  if (session?.user) {
+    redirect('/dashboard');
+  }
+
   return <>{children}</>;
 }