feat(F-122): completed feature

work/artifacts/F-122/reviewer.json

@@ -0,0 +1,14 @@
+{
+  "feature_id": "F-122",
+  "agent": "reviewer",
+  "stage": "review_gate",
+  "verdict": "APPROVED",
+  "reviewed_at": "2026-08-21",
+  "summary": "Legacy variant warning removed; admin UI is cleaner for single-variant products.",
+  "checks": [
+    { "item": "extraVariants state removed", "ok": true },
+    { "item": "JSX warning block removed", "ok": true },
+    { "item": "Admin tsc --noEmit clean", "ok": true }
+  ],
+  "issues": []
+}