Decode the ReadOne/Normal body and assert MaxPermission equals the real
permission (admin for the owner) instead of substring-matching, so a
regression to 0 or null is caught precisely.
Add TestHumaProject_NullMaxPermissionRoundTrips: create/update return
max_permission:null, and PUTting that response body back verbatim must
succeed (200, not 422). max_permission is readOnly so Huma ignores it on
write, and Permission.UnmarshalJSON treats JSON null as a no-op.
kolaenteandkolaente
62979ff342