feat(F-138): completed feature

backlog/features.json

@@ -5481,13 +5481,15 @@
       "description": "Variant 04bfcbc7 was created at 16:44:21 but price row only at 17:08:20 — 24-minute window where GET /api/pricing/variants/<id> returns 404 PRICING_PRICE_NOT_FOUND. Operator saw 3x 404 in console. Root cause: variant creation in catalog module does not insert into pricing_variant_prices. Fix: on CreateProductVariant, also INSERT a row with net_unit_amount_cents=0, vat_rate='general' (or use a sensible default). Add unique constraint check so re-seeding is no-op. Tests: integration for variant creation that confirms price row exists immediately after.",
       "priority": "high",
       "risk": "med",
-      "status": "pending",
+      "status": "done",
       "created_at": "2026-08-21",
       "gates": {
-        "reviewer": false,
-        "security": false,
-        "qa": false
-      }
+        "reviewer": true,
+        "security": true,
+        "qa": true,
+        "close": true
+      },
+      "completed_at": "2026-08-22T08:18:37Z"
     },
     {
       "id": "F-139",