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/routes/__root.tsx

@@ -0,0 +1,25 @@
+import { createRootRoute, Outlet } from '@tanstack/react-router'
+import { QueryClient, QueryClientProvider } from '@tanstack/react-query'
+import { NotFoundPage } from '@/components/ui/error-boundary'
+
+const queryClient = new QueryClient({
+  defaultOptions: {
+    queries: {
+      staleTime: 30_000,
+      retry: 1,
+    },
+  },
+})
+
+function RootComponent() {
+  return (
+    <QueryClientProvider client={queryClient}>
+      <Outlet />
+    </QueryClientProvider>
+  )
+}
+
+export const Route = createRootRoute({
+  component: RootComponent,
+  notFoundComponent: NotFoundPage,
+})