feat: Vite + React 19 + Tailwind + TypeScript scaffold

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

frontend/tailwind.config.ts

@@ -0,0 +1,14 @@
+import type { Config } from 'tailwindcss'
+
+export default {
+  content: ['./index.html', './src/**/*.{ts,tsx}'],
+  darkMode: 'class',
+  theme: {
+    extend: {
+      colors: {
+        honey: { DEFAULT: '#f0b90b', dim: '#b8970e' },
+      },
+    },
+  },
+  plugins: [],
+} satisfies Config