update tailwind to v4

vite.config.ts

@@ -1,9 +1,15 @@
 import { sveltekit } from '@sveltejs/kit/vite';
+import tailwindcss from '@tailwindcss/vite';
 import { defineConfig } from 'vitest/config';
 
 export default defineConfig({
-	plugins: [sveltekit()],
+	plugins: [tailwindcss(), sveltekit()],
 	test: {
 		include: ['src/**/*.{test,spec}.{js,ts}']
+	},
+	server: {
+		host: '127.0.0.1',
+		allowedHosts: ['dev.stanrunge.dev'],
+		hmr: { host: 'dev.stanrunge.dev', protocol: 'wss', clientPort: 443 }
 	}
 });