* [PM-25088] add feature flag for new premium subscription flow
* [PM-25088] refactor premium endpoint
* forgot the punctuation change in the test
* [PM-25088] - pr feedback
* [PM-25088] - pr feedback round two
* Moved license models to billing
* Moved LicensingService to billing
* Moved license command and queries to billing
* Moved LicenseController to billing