feat(ADM-018): completed feature

work/artifacts/F-019/security.json

@@ -0,0 +1,16 @@
+{
+  "feature_id": "F-019",
+  "agent": "security",
+  "verdict": "APPROVED",
+  "summary": "Security approved. No new dependencies or secrets were introduced. Promo mutation is admin-only, cart promo application is authenticated, inputs are validated, and SQL uses parameterized queries.",
+  "evidence": [
+    "cd project && npm audit --audit-level=high --omit=dev: found 0 vulnerabilities",
+    "Secret scan found only a test fixture password, no committed credentials",
+    "Reviewed /promotions: admin-only creation through authenticated role check",
+    "Reviewed /cart/promo-code: authenticated user scoped cart update",
+    "Reviewed schemas: promo and cart payloads validate bounded fields and strip client discounts",
+    "Reviewed repository SQL: parameterized queries only",
+    "Reviewed migration constraints for promo type, positive value, usage limits and validity window"
+  ],
+  "timestamp": "2026-08-15T17:43:57Z"
+}