feat(F-109): completed feature

work/artifacts/F-109/implementer.md

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+# F-109 — SKU autogenerado SKU-MV-[product_id], oculto en el editor
+
+## Cambios
+- Backend (entregado con F-108): POST /products y lazy migration de GET /products/:id/variants crean la variante interna con SKU `SKU-MV-<productId>` sin intervención del operador.
+- Admin: eliminada la columna SKU (y su edición inline) de /inventory; sin campos SKU en la ficha de producto. El SKU queda como identificador interno invisible.
+- Textos de inventario ahora hablan de "productos", no "variantes".
+
+## Evidencia
+- tsc admin OK, next build OK, servicios 200 tras restart.
+- Grep sin referencias SKU en editor/fichas de producto.

work/artifacts/F-109/leader-close.json

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+{
+  "feature_id": "F-109",
+  "agent": "leader",
+  "verdict": "APPROVED",
+  "summary": "F-109 makes SKU internal-only and autogenerated, closing the loop started by F-108.",
+  "evidence": [
+    "reviewer.json APPROVED",
+    "security.json APPROVED",
+    "qa.json APPROVED"
+  ],
+  "timestamp": "2026-08-21T08:00:04Z"
+}

work/artifacts/F-109/qa.json

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+{
+  "feature_id": "F-109",
+  "agent": "qa",
+  "verdict": "APPROVED",
+  "summary": "Admin tsc and next build green; prod restart all services HTTP 200; verify.sh green.",
+  "evidence": [
+    "apps/admin tsc --noEmit OK",
+    "next build OK",
+    "admin :3004 returns 200"
+  ],
+  "timestamp": "2026-08-21T08:00:04Z"
+}

work/artifacts/F-109/reviewer.json

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+{
+  "feature_id": "F-109",
+  "agent": "reviewer",
+  "verdict": "APPROVED",
+  "summary": "SKU is fully auto-generated (SKU-MV-<productId>) and removed from every admin editing surface; supersedes the F-100 title-based SKU idea.",
+  "evidence": [
+    "No SKU input or column remains in product editor or inventory",
+    "Default variant SKU assigned server-side at product creation and via lazy migration"
+  ],
+  "timestamp": "2026-08-21T08:00:04Z"
+}

work/artifacts/F-109/security.json

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+{
+  "feature_id": "F-109",
+  "agent": "security",
+  "verdict": "APPROVED",
+  "summary": "No new inputs accepted; SKU generation is server-side deterministic; no auth surface changed.",
+  "evidence": [
+    "SKU not user-controllable",
+    "Existing admin auth unchanged"
+  ],
+  "timestamp": "2026-08-21T08:00:04Z"
+}