The server file should look like this

But it looks like this

Which makes it not identifiable as a server pack by automated tools. For instance, fixing this would allow hosting this pack on Aternos.

Do you know how to automate it?

Im using API to uploading files onto CF, but it doesn't have capabilities for marking file as Server Pack.

Seems like the only option i have is manually mark server pack as "server" on CF website... Duh ☹