feat(F-191): completed feature

work/artifacts/F-191/qa.json

@@ -0,0 +1,45 @@
+{
+  "agent": "qa",
+  "feature_id": "F-191",
+  "verdict": "APPROVED",
+  "summary": "QA trace complete. All acceptance criteria satisfied. 269 tests pass. verify.sh green.",
+  "checks": [
+    {
+      "id": "QA-1",
+      "description": "AC1: Cashier can close session and state transitions to CLOSED",
+      "result": "PASS",
+      "evidence": "CloseCashSessionUseCase.execute() → sessionRepo.close() → UPDATE status='CLOSED' in pg-cash-session-repository.ts"
+    },
+    {
+      "id": "QA-2",
+      "description": "AC2: Variance is stored in pos_cash_sessions.difference_cents",
+      "result": "PASS",
+      "evidence": "PgCashSessionRepository.close(): difference = actualCashCents - closingCashCents; stored as difference_cents"
+    },
+    {
+      "id": "QA-3",
+      "description": "AC3: Over/short accepted without warning (no guard on non-zero variance)",
+      "result": "PASS",
+      "evidence": "No validation blocking non-zero variance; accepted and stored"
+    },
+    {
+      "id": "QA-4",
+      "description": "AC4: No new sales on closed session",
+      "result": "PASS",
+      "evidence": "create-pos-sale.ts session status check: only OPEN sessions accepted for new sales"
+    },
+    {
+      "id": "QA-5",
+      "description": "AC5: Pending orders from closed session payable via open session",
+      "result": "PASS",
+      "evidence": "receive-rest-payment.ts: orig session CLOSED → allow new OPEN session on same terminal"
+    },
+    {
+      "id": "QA-6",
+      "description": "tsc, npm test, verify.sh green",
+      "result": "PASS",
+      "evidence": "269 passed, 96 skipped; verify.sh exit 0"
+    }
+  ],
+  "reviewed_at": "2026-08-23T05:52:05Z"
+}