Nuxt Ui Guideline: Dashboard — Use UDashboardSidebar for navigation. Description: Provides collapsible resizable sidebar with mobile support. Do: UDashboardSidebar with header default footer slots. Don't: Custom sidebar implementation. Good Example: <UDashboardSidebar><template #header>...</template></UDashboardSidebar>. Bad Example: <aside class="w-64 border-r">. Severity: Medium. Docs: https://ui.nuxt.com/docs/components/dashboard-sidebar.