feat(01-01): create SvelteKit project with dependencies

- SvelteKit minimal template with TypeScript
- Tailwind CSS v4 with @tailwindcss/vite plugin
- ESLint and Prettier for code quality
- Dependencies: better-sqlite3, drizzle-orm, nanoid, zod
- Dev server runs on localhost:5173

src/routes/+layout.svelte

@@ -0,0 +1,12 @@
+<script lang="ts">
+	import '../app.css';
+	import favicon from '$lib/assets/favicon.svg';
+
+	let { children } = $props();
+</script>
+
+<svelte:head>
+	<link rel="icon" href={favicon} />
+</svelte:head>
+
+{@render children()}

src/routes/+page.svelte

@@ -0,0 +1,2 @@
+<h1 class="text-2xl font-bold text-blue-600">TaskPlanner</h1>
+<p class="text-gray-600">Foundation setup complete.</p>