feat(F-084): completed feature

work/artifacts/F-084/reviewer.json

@@ -0,0 +1,15 @@
+{
+  "feature_id": "F-084",
+  "verdict": "APPROVED",
+  "checks": [
+    { "name": "Emoji render is no longer gated on children", "result": "PASS", "notes": "Condition removed; render uses cat.emoji directly." },
+    { "name": "Empty emoji gets a neutral placeholder", "result": "PASS", "notes": "Grey `·` placeholder with aria-hidden prevents layout shift and keeps semantics." },
+    { "name": "Save -> refresh path still works", "result": "PASS", "notes": "handleSave unchanged; still calls load() to re-fetch the tree." },
+    { "name": "No backend change", "result": "PASS", "notes": "categories API untouched." }
+  ],
+  "lint": { "errors_introduced": 0, "pre_existing_any_in_seo_form": true },
+  "typecheck": "PASS",
+  "verdict_reason": "Minimal, surgical render fix.",
+  "reviewer": "reviewer",
+  "reviewed_at": "2026-08-20T04:11:00Z"
+}