chore: import upstream snapshot with attribution

tools/ui/svelte.config.js

@@ -0,0 +1,38 @@
+import { mdsvex } from 'mdsvex';
+import adapter from '@sveltejs/adapter-static';
+import { vitePreprocess } from '@sveltejs/vite-plugin-svelte';
+
+// CMake sets LLAMA_UI_OUT_DIR to the staging dir under the build tree; manual
+// `npm run build` runs without the env var default to ./dist.
+const outDir = process.env.LLAMA_UI_OUT_DIR ?? './dist';
+
+/** @type {import('@sveltejs/kit').Config} */
+const config = {
+	// Consult https://svelte.dev/docs/kit/integrations
+	// for more information about preprocessors
+	preprocess: [vitePreprocess(), mdsvex()],
+
+	kit: {
+		paths: {
+			relative: true
+		},
+		router: { type: 'hash' },
+		adapter: adapter({
+			pages: outDir,
+			assets: outDir,
+			fallback: 'index.html',
+			precompress: false,
+			strict: true
+		}),
+		output: {
+			bundleStrategy: 'single'
+		},
+		alias: {
+			$styles: 'src/styles'
+		}
+	},
+
+	extensions: ['.svelte', '.svx']
+};
+
+export default config;