feat(F-093): completed feature

work/artifacts/F-093/implementer.md

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+# F-093 — Implementer evidence
+
+## Change
+
+- Admin catalog `listAll` now matches `q` against product name or any related variant EAN using an `EXISTS` query.
+- Inventory search placeholder now says `Buscar por EAN o nombre...`.
+
+## Validation
+
+- Root `npm run typecheck` → exit 0
+- Root `npm test -- --run` → 133 passed, 56 skipped
+- Admin `npx tsc --noEmit` → exit 0
+- Admin ESLint on inventory page → exit 0
+- Search remains case-insensitive for names and supports partial EAN values.