atc-agents/ui/src/main.tsx

import React from 'react'
import ReactDOM from 'react-dom/client'
import { QueryClient, QueryClientProvider } from '@tanstack/react-query'
import App from './App'
import { ThemeProvider } from './context/ThemeContext'
import './styles/globals.css'

const queryClient = new QueryClient({
  defaultOptions: { queries: { retry: 1, staleTime: 10_000 } },
})

ReactDOM.createRoot(document.getElementById('root')!).render(
  <React.StrictMode>
    <QueryClientProvider client={queryClient}>
      <ThemeProvider>
        <App />
      </ThemeProvider>
    </QueryClientProvider>
  </React.StrictMode>,
)