Enable users to mint their custom Stamp and scorer onchain -- Custom Onchain Passport

[lebraat]

User Story:

As a user who is participating in a partner who has a custom Passport/scorer
I want to mint my exact custom Passport onchain
So that I can see my custom score and Stamps, and be able to participate in the partner program who is using onchain Passport to gate access.

Acceptance Criteria

GIVEN a custom scorer
WHEN a user mints their Passport onchain from their dashboard
THEN the resulting onchain attestations utilize the custom Stamp and scores rather than 335