As a product manager, I would like to have access to a single source of truth that lists all Wikibase Cloud instances with the following information:

• The info available in the conversion API call
• The info available in the discovery API call (unless it's already present in the first API call)
• Basic settings of the Wikibase from the dashboard (for example, whether anti spam protection is on, whether accounts must be requested, and so on)
• total number of items (as implemented in https://phabricator.wikimedia.org/T314481)
• total number of properties (as implemented in ^^^)
• total number of lexemes
• Email of the first admin user (to clarify: do I understand right that theoretically there can be several?)

Unlike the API calls, this CSV should also include:

• deleted Wikibases
• is_deleted flag
• date_time_deleted
• reason_deleted (implemented in https://phabricator.wikimedia.org/T347865)

This will allow me to quickly access and manipulate all relevant information without having to merge it manually from different API calls. It will also further be expanded in the future to include other columns.
Acceptable format for now: JSON/CSV like the current conversions API call.

Only logged-in WBC team members should have access to this.