feat(F-090): completed feature

work/artifacts/F-090/security.json

@@ -0,0 +1,13 @@
+{
+  "feature_id": "F-090",
+  "agent": "security",
+  "verdict": "APPROVED",
+  "summary": "The change exposes only existing product fields already authorized by the admin endpoint and changes no authorization, validation, SQL, or client input boundaries.",
+  "evidence": [
+    "brand and expirationDate are existing domain fields from the authenticated admin catalog response",
+    "SKU/EAN still use the existing authenticated admin PATCH endpoint and backend validation",
+    "No new dependencies, secrets, routes, SQL, or authorization behavior",
+    "No unsafe URL or HTML handling added"
+  ],
+  "timestamp": "2026-08-20T19:40:10Z"
+}