feat(scaffold): init SvelteKit + TypeScript project

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

vite.config.ts

@@ -0,0 +1,12 @@
+import { sveltekit } from '@sveltejs/kit/vite';
+import { defineConfig } from 'vitest/config';
+
+export default defineConfig({
+  plugins: [sveltekit()],
+  test: {
+    include: ['tests/**/*.test.ts'],
+    globals: false,
+    environment: 'node',
+    testTimeout: 10_000
+  }
+});