feat(ADM-018): completed feature

work/artifacts/F-024/qa.json

@@ -0,0 +1,20 @@
+{
+  "feature_id": "F-024",
+  "agent": "qa",
+  "verdict": "APPROVED",
+  "summary": "QA approved. All F-024 acceptance criteria are covered by executable tests and green checks.",
+  "evidence": [
+    "notifications-service.test.ts covers first-event sent and replay duplicate",
+    "boundary.test.ts proves only infrastructure references LoggingEmailProvider",
+    "cd project && npm run lint/typecheck/build/test passed",
+    "DB integration migrations suite passed: 14 files, 53 tests",
+    "./scripts/verify.sh passed"
+  ],
+  "acceptance": [
+    { "criterion": "Given PaymentSucceeded event When processed Then order confirmation email queued", "status": "PASS", "evidence": "notifications-service dispatches on first event and template order_confirmation maps to OrderPaid" },
+    { "criterion": "Given same event redelivered When processed Then no duplicate email", "status": "PASS", "evidence": "service returns 'duplicate' on existing event_id and provider.send is not called again" },
+    { "criterion": "Swapping email provider touches only infrastructure adapter", "status": "PASS", "evidence": "boundary.test.ts confirms only infrastructure files reference the provider implementation; route uses EmailProvider port" },
+    { "criterion": "verify.sh green", "status": "PASS", "evidence": "./scripts/verify.sh PASS" }
+  ],
+  "timestamp": "2026-08-15T18:48:04Z"
+}