feat(*): first mvp

frontend/src/routes/+layout.svelte

@@ -1,8 +1,12 @@
 <script lang="ts">
 	import './layout.css';
 	import favicon from '$lib/assets/favicon.svg';
+	import { PUBLIC_CONVEX_URL } from '$env/static/public';
+	import { setupConvex } from 'convex-svelte';
 
 	let { children } = $props();
+
+	setupConvex(PUBLIC_CONVEX_URL);
 </script>
 
 <svelte:head><link rel="icon" href={favicon} /></svelte:head>