The production UsersRepository reads and writes username + passwordHash
via the Payload local API, but the users collection never declared them,
so production sign-up/sign-in was broken (audit finding B1). passwordHash
uses access.read: () => false so credential material never serializes
through any Payload API surface; the repository still reads it with
overrideAccess: true. A contract-shaped test pins every repo-used field
(USERS_REPOSITORY_FIELDS) against the collection config so drift fails
at test time without a database.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Danijel Martinek
c9db7c8cd7