feat(F-140): completed feature

work/artifacts/F-140/security.json

@@ -0,0 +1,13 @@
+{
+  "feature_id": "F-140",
+  "agent": "security",
+  "stage": "security_gate",
+  "verdict": "APPROVED",
+  "summary": "Read-only enrichment of existing admin endpoint. No new auth, no new routes, no new secrets. All data already accessible to admin role. last4 is non-sensitive (partial PAN).",
+  "checks": [
+    {"item": "Authentication", "ok": true, "evidence": "GET /orders/:id/admin already requires admin role; no change"},
+    {"item": "No new secrets", "ok": true, "evidence": "No credentials or secrets added"},
+    {"item": "No PII in logs", "ok": true, "evidence": "Only user data from existing DB rows; no new logging"}
+  ],
+  "issues": []
+}