feat: The Other Dude v9.0.1 — full-featured email system

ci: add GitHub Pages deployment workflow for docs site

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

frontend/src/main.tsx

@@ -0,0 +1,14 @@
+import { StrictMode } from 'react'
+import { createRoot } from 'react-dom/client'
+import { initializeTheme } from './lib/theme'
+import './index.css'
+import App from './App.tsx'
+
+// Apply theme class before first paint to prevent flash
+initializeTheme()
+
+createRoot(document.getElementById('root')!).render(
+  <StrictMode>
+    <App />
+  </StrictMode>,
+)