init: Sprout desktop app launcher

Co-authored-by: Cursor <cursoragent@cursor.com>

vite.config.ts

@@ -0,0 +1,21 @@
+import { defineConfig } from 'vite'
+import react from '@vitejs/plugin-react'
+
+// https://vitejs.dev/config/
+export default defineConfig(async () => ({
+  plugins: [react()],
+  // Tauri dev server: listen on all interfaces, fixed port.
+  server: {
+    port: 5173,
+    strictPort: true,
+    host: '0.0.0.0',
+    hmr: {
+      protocol: 'ws',
+      host: 'localhost',
+    },
+  },
+  // Prevent Vite from obscuring Rust compilation errors.
+  clearScreen: false,
+  // Tauri expects a fixed port.
+  envPrefix: ['VITE_', 'TAURI_'],
+}))