Initial commit of vite-saas template

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

vite.config.mjs

@@ -0,0 +1,25 @@
+import { defineConfig } from 'vite';
+import { tanstackStart } from '@tanstack/react-start/plugin/vite';
+import react from '@vitejs/plugin-react';
+import tailwindcss from '@tailwindcss/vite';
+import { fileURLToPath, URL } from 'node:url';
+
+export default defineConfig(async ({ command }) => ({
+  server: { port: 3000 },
+  plugins: [
+    // Start must come before the React plugin.
+    tanstackStart(),
+    // Hosting adapter for `vite build`: Nitro packages Start's server for the
+    // host (a Vercel Function when building on Vercel, a Node server in
+    // .output/ elsewhere). Dev never loads it, so `vite dev` — and the
+    // nodesandbox runtime — run plain Vite + TanStack Start.
+    ...(command === 'build' ? [(await import('nitro/vite')).nitro()] : []),
+    react(),
+    tailwindcss(),
+  ],
+  resolve: {
+    alias: {
+      '@': fileURLToPath(new URL('./src', import.meta.url)),
+    },
+  },
+}));