{"feature_id":"CHECKOUT-STOCK-RECHECK","agent":"reviewer","stage":"review_gate","verdict":"APPROVED","summary":"Fix mínimo y correcto: leer mensaje del backend con readErrorMessage en respuestas no-OK.","checks":[{"item":"readErrorMessage se usa para errores checkout no-OK","ok":true}],"issues":[],"evidence":["cd project/frontend && npm run build","git diff --check"],"timestamp":"2026-08-26T18:33:20Z"}
