refactor: route pages with shared formatting and layout updates

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

frontend/src/routes/+page.svelte

@@ -1,9 +1,17 @@
 <script lang="ts">
+	import { goto } from '$app/navigation';
 	import { Button } from '$lib/components/ui/button';
 	import PortfolioCarousel from '$lib/components/layout/PortfolioCarousel.svelte';
 	import { authStore } from '$lib/stores/auth.svelte';
 	import { Skeleton } from '$lib/components/ui/skeleton';
 
+	// Redirect admins to /today (their homepage)
+	$effect(() => {
+		if (!authStore.isLoading && authStore.currentUser?.role === 'admin') {
+			goto('/today', { replaceState: true });
+		}
+	});
+
 	const returningGreetings = [
 		(name: string) => `Welcome back, ${name}!`,
 		(name: string) => `Great to see you again, ${name}!`,