feat: Initialize Svelte frontend with Vite, TailwindCSS, custom theme, and a basic "Hello World" component.

Provider/frontend/vite.config.js

@@ -1,9 +1,13 @@
 import { defineConfig } from 'vite'
 import { svelte } from '@sveltejs/vite-plugin-svelte'
+import tailwindcss from '@tailwindcss/vite'
 
 // https://vite.dev/config/
 export default defineConfig({
-  plugins: [svelte()],
+  plugins: [
+    svelte(),
+    tailwindcss(),
+  ],
   // Resolve the W: subst drive to avoid path mismatches on Windows
   resolve: {
     preserveSymlinks: true,