Convert ZenAPI to a Paid-via-Atlassian application

[MrCoder]

https://developer.atlassian.com/platform/marketplace/cloud-app-licensing/#enable-app-licensing

To implement licensing in an app, set the enableLicensing flag in the app descriptor file (atlassian-connect.json) to true. Any app intended for sale should have this flag enabled.

{
    "name": "Hello World",
    "key": "hello-world",
    "description": "Atlassian Connect app",
    "baseUrl": "http://www.example.com",
    "enableLicensing": true
}

This tells UPM to check and report licensing status to the app. On the other hand, if you are using a app strictly for internal use or you plan to distribute it freely on the Marketplace, this should be set to false.

[MrCoder]

Done