Implement the 010-ui-baseline feature that establishes a modern UI using Tailwind CSS v4 and shadcn/ui-style components for the encounter screen

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

apps/web/vite.config.ts

@@ -1,6 +1,7 @@
+import tailwindcss from "@tailwindcss/vite";
 import react from "@vitejs/plugin-react";
 import { defineConfig } from "vite";
 
 export default defineConfig({
-	plugins: [react()],
+	plugins: [tailwindcss(), react()],
 });