Claim a listing from fetcher

These listings were imported on 2026-09-05 from mcprush-import-servers.json and are listed under an account nobody has signed in to. A claim covers one listing, not the account: several unrelated projects sit under this name, and handing all of them to whoever proves one repository would give them somebody else's work.

Claiming does not take a listing off anybody: nobody holds this account. What it changes is that support reaches a person, releases can be cut, and a price can be set.