mercadodevida/work/artifacts/F-091/implementer.md

F-091 — Implementer evidence

Changes

• project/src/modules/catalog/domain/errors.ts now records whether a duplicate variant code is sku or ean.
• project/src/modules/catalog/infrastructure/pg-variant-repository.ts maps PostgreSQL unique constraints (*_sku_key, *_ean_key) to that field while preserving the 409 uniqueness rule.
• project/apps/admin/src/features/products/components/sections/InventorySection.tsx
  • Guards each SKU/EAN variant save with an in-flight key so Enter followed by blur cannot submit duplicate PATCH requests.
  • Shows El SKU ya existe en otra variante or El EAN ya existe en otra variante for 409 conflicts instead of generic Error.

Validation

• Root npm run typecheck → exit 0
• Root npm test -- --run → 133 passed, 56 skipped
• Admin npx tsc --noEmit → exit 0
• Admin ESLint on InventorySection.tsx → exit 0
• SKU/EAN uniqueness remains enforced by the existing database constraints.