feat(POS-005): completed feature

work/artifacts/POS-005/reviewer.json

@@ -0,0 +1,14 @@
+{
+  "feature_id": "POS-005",
+  "agent": "reviewer",
+  "stage": "review_gate",
+  "verdict": "APPROVED",
+  "summary": "Product search + payment methods API complete. tsc 0, verify green.",
+  "checks": [
+    {"item": "Product search endpoint", "ok": true, "evidence": "GET /pos/products/search with ILIKE + JOIN inventory/pricing/categories/brands"},
+    {"item": "EAN/SKU lookup", "ok": true, "evidence": "GET /pos/products/by-ean/:ean and /by-sku/:sku"},
+    {"item": "Payment methods admin", "ok": true, "evidence": "GET/POST/PATCH /pos/admin/payment-methods"},
+    {"item": "tsc/verify", "ok": true, "evidence": "npm run build 0; verify.sh green"}
+  ],
+  "issues": []
+}