feat(web): add dashboard layout with sidebar and header

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

apps/web/app/(dashboard)/layout.tsx

@@ -0,0 +1,34 @@
+'use client';
+
+import { useEffect } from 'react';
+import { useRouter } from 'next/navigation';
+import { useAuthStore } from '@/stores/auth-store';
+import { Sidebar } from '@/components/layouts/sidebar';
+
+export default function DashboardLayout({
+  children,
+}: {
+  children: React.ReactNode;
+}) {
+  const router = useRouter();
+  const { isAuthenticated } = useAuthStore();
+
+  useEffect(() => {
+    if (!isAuthenticated) {
+      router.push('/login');
+    }
+  }, [isAuthenticated, router]);
+
+  if (!isAuthenticated) {
+    return null;
+  }
+
+  return (
+    <div className="min-h-screen bg-background">
+      <Sidebar />
+      <div className="pl-64">
+        {children}
+      </div>
+    </div>
+  );
+}