Update on parnter/clients api, to include client owned workspaces in the results

We've enhanced the /partner/clients API endpoint, a feature exclusive to UChat partners.

Now, when you call this endpoint, you'll receive a comprehensive list of all workspaces owned by each client in the response.

This improvement provides a more complete view of your client structures, facilitating better management and support.

Explore these expanded capabilities to enhance your workflow efficiency!