chore: bootstrap HemHub web (Iteration 0)

src/app/providers.tsx

@@ -0,0 +1,13 @@
+// src/app/providers.tsx
+import { type PropsWithChildren, useState } from 'react'
+import { QueryClient, QueryClientProvider } from '@tanstack/react-query'
+
+export function AppProviders({ children }: PropsWithChildren) {
+  const [client] = useState(
+    () =>
+      new QueryClient({
+        defaultOptions: { queries: { refetchOnWindowFocus: false, retry: 1 } },
+      })
+  )
+  return <QueryClientProvider client={client}>{children}</QueryClientProvider>
+}