`POST /v1/cardholders`
POST/v1/cardholders
Create cardholder.
create a cardholder.
.7: customer_id is a Ledger customer id (by value; existence is the
caller's contract - Ledger owns customer validation via its public API;
no cross-schema FK).
Responses
- 200
- 401
- 403
OK
Not authenticated
Missing the payments scope gate