docs: sync from backend ca2b1c4 — marketplace e2e smoke runner

11 - Testing/Testing Expansion Backlog.md

@@ -104,7 +104,8 @@ Add Playwright tests for:
 
 ## P1 - Notification Assertions
 
-Turn [[Notification Assertion Procedure]] into reusable E2E helpers:
+Initial reusable E2E helpers are implemented in
+`backend/scripts/smoke/marketplace-e2e-notifications.mjs`. Remaining work:
 
 - capture per-user notification baseline;
 - poll `GET /api/notifications` and `GET /api/notifications/unread-count`;
@@ -113,6 +114,13 @@ Turn [[Notification Assertion Procedure]] into reusable E2E helpers:
 - record known notification gaps with route/action and expected recipient;
 - include notification latency in every E2E report.
 
+Current dev findings from the first two-round runner report:
+
+- `NOTIF-E2E-001` passes for buyer new-offer notifications.
+- Seller new-request fanout passes for privately targeted sellers.
+- Rejected-seller notifications pass by rejected offer `relatedId`.
+- `NOTIF-E2E-002` fails by selected offer `relatedId`; accepted-offer notification is not discoverable with the selected offer id.
+
 Acceptance tests:
 
 | ID | Expected |
@@ -125,8 +133,8 @@ Acceptance tests:
 
 ## P1 - Concurrency and Performance Profile
 
-Implement [[Concurrency and Performance Profile]] as an executable runner and
-report generator:
+Initial executable runner and report generator are implemented in
+`backend/scripts/smoke/marketplace-e2e-notifications.mjs`. Remaining work:
 
 - worker abstraction for one isolated buyer/sellers/payment/delivery flow;
 - barrier start for simultaneous workers;
@@ -136,6 +144,13 @@ report generator:
 - infrastructure snapshots before/during/after each stage;
 - stop-condition enforcement.
 
+Current dev blocker:
+
+- Dev API rate limiting is `100` requests per `900s`, so C2+ ramp runs need a
+  fresh window, a lower-polling profile, or a non-rate-limited test environment.
+- `PAYMENT_MODE=record` currently fails because `POST /api/marketplace/payments`
+  returns HTTP 500 after offer selection with generated test actors.
+
 Acceptance tests:
 
 | ID | Expected |
@@ -179,10 +194,13 @@ Add dashboards/log queries for:
 
 ## Suggested Next Automation Order
 
-1. Convert the two-round BSC Testnet E2E procedure into a committed smoke script.
-2. Add non-buyer delivery confirmation regression test.
-3. Add scanner negative tests for wrong token and underpayment.
-4. Implement physical vs digital release policy.
-5. Add release-policy tests.
-6. Resolve dispute route/policy gaps.
-7. Add dispute-to-release/refund E2E tests.
+1. Fix selected-seller accepted notification related id.
+2. Fix or retire the legacy `POST /api/marketplace/payments` record path.
+3. Run `PAYMENT_MODE=status` through delivery after the dev rate-limit window resets.
+4. Run `PAYMENT_MODE=live` once wallet gas/tUSDT and rate-limit headroom are available.
+5. Add non-buyer delivery confirmation regression test.
+6. Add scanner negative tests for wrong token and underpayment.
+7. Implement physical vs digital release policy.
+8. Add release-policy tests.
+9. Resolve dispute route/policy gaps.
+10. Add dispute-to-release/refund E2E tests.