feat(F-115): completed feature

work/artifacts/F-115/security.json

@@ -0,0 +1,15 @@
+{
+  "feature_id": "F-115",
+  "agent": "security",
+  "stage": "security_gate",
+  "verdict": "APPROVED",
+  "reviewed_at": "2026-08-21",
+  "summary": "Removing endpoints and shrinking the public surface; no new attack surface.",
+  "checks": [
+    { "item": "Removed endpoint /products/sku:generate (POST admin) was well-guarded; its removal reduces public surface", "ok": true },
+    { "item": "listAllSkus removed; no SSRF-style data leak", "ok": true },
+    { "item": "SKU generation uses the safe template literal SKU-MV-${id} (uuid)", "ok": true },
+    { "item": "PATCH /products/:id/variants/:variantId still admin-only and validates SKU via the existing zod schema", "ok": true }
+  ],
+  "issues": []
+}