PeerDB Cloud: No exposed way to perform CDC Mirror Setup

[woodhull]

While testing, I'm finding myself removing and recreating the same mirror over and over again.

As my configuration grows more complex, it's quite tedious to ensure I'm making the right choices in the UI every time and I often make small mistakes.

I also want to ensure that the staging and production configurations are identical.

There should be a supported REST API or other interface like the SQL interface that is available in the OSS product so that we can adopt configuration-as-code best practices.