Function ProcessCallback

ProcessCallback(props: ProcessCallbackProps): ReactNode
<ProcessCallback/> completes a pending sign-in or sign-out callback on the current URL and synchronizes the authentication state.

Render it on the dedicated route that MonoCloud redirects back to (for example, /callback) and disable automatic processing on the provider with autoProcessCallback={false}. It renders no UI of its own beyond the optional loading, error, and children slots. Navigation after a successful callback is controlled by the provider-level postCallback option, not by this component.
Parameters
- props: ProcessCallbackProps
  Props for customizing the rendered states.
Returns ReactNode
The loading, error, or children content depending on the processing state.
Example: Dedicated callback route
```
"use client";

import { ProcessCallback } from "@monocloud/auth-react";

export default function Callback() {
  return (
    <ProcessCallback
      loading={<p>Completing sign in…</p>}
      error={(err) => <p>Sign in failed: {err.message}</p>}
    />
  );
}
```
- Defined in packages/react/src/components/process-callback.tsx:46