Lg 7738 - mock errors for inherited proofing mock proofer

[holytoastr]

🎫 Ticket

LG-7738

🛠 Summary of changes

Returns an error in the Inherited Proofing mock proofer when the incorrect auth code is provided

[holytoastr]

I posted this in another comment, but just for visibility:

Just for bigger picture context, since the auth code is provided by the VA when the user is sent to us we don't have a place where we would input the code the way you would with a phone number. In the end, I am envisioning a response like below once we have more than 2 auth_codes to work with. However, since we're agile, we're keeping it simple for now with a tertiary operator and will iterate as new codes are provided to us by the devs working on the VA api.

PAYLOAD_HASH = {...}
ERROR_HASH_A = {...}
ERROR_HASH_B = {...}
GENERIC_ERROR_HASH = {...}
PAYLOAD_HASHES = {
  Idv::InheritedProofing::Va::Mocks::Service::VALID_AUTH_CODE => PAYLOAD_HASH,
  'error_a_auth_code' => ERROR_HASH_A,
  'error_b_auth_code' => ERROR_HASH_B,
}

PAYLOAD_HASHES[auth_code] || GENERIC_ERROR_HASH

Hopefully you find that helpful and can approve this PR to help move it along