fix: fail closed on unknown reconcile warnings

tests/application/test_reconcile_warning_blocking.py

@@ -340,6 +340,52 @@ def test_intent_service_sell_rejected_when_reconcile_warned():
     assert d.reason == "reconcile_warned"
 
 
+def test_unknown_warning_case_blocks_buy_and_sell_intents():
+    repo = InMemorySlotRepository()
+    svc = SlotService(repo)
+    warn_store = InMemoryReconcileWarningStore()
+    slot = _make_holding_slot(repo, svc, qty=10)
+    warn_store.set_warned(str(slot.slot_id), portfolio_id="pf-A", case_code="X")
+
+    intent_svc = IntentService(
+        svc,
+        repo,
+        InMemoryIntentStore(),
+        instance_key="default",
+        warn_store=warn_store,
+    )
+
+    buy = intent_svc.submit_buy(BuyIntent(
+        intent_id="b-unknown-case",
+        slot_id=slot.slot_id,
+        entry_price=100.0,
+        qty=1.0,
+    ))
+    sell = intent_svc.submit_sell(SellIntent(
+        intent_id="s-unknown-case",
+        slot_id=slot.slot_id,
+        reason="strategy_exit",
+    ))
+
+    assert buy.status == "rejected"
+    assert buy.reason == "reconcile_warned"
+    assert sell.status == "rejected"
+    assert sell.reason == "reconcile_warned"
+
+
+def test_slot_to_dict_marks_unknown_warning_case_ineligible():
+    repo = InMemorySlotRepository()
+    svc = SlotService(repo)
+    warn_store = InMemoryReconcileWarningStore()
+    slot = _make_holding_slot(repo, svc, qty=10)
+    warn_store.set_warned(str(slot.slot_id), portfolio_id="pf-A", case_code="X")
+
+    row = slot_to_dict(slot, warn_store=warn_store)
+
+    assert row["reconcile_warning_cases"] == ["X"]
+    assert row["trade_eligible"] is False
+
+
 def test_reconcile_warned_buy_emits_alarm_with_allowlisted_fields_after_finalize():
     repo = InMemorySlotRepository()
     svc = SlotService(repo)

tests/application/test_slots_handler_quantity_mismatch.py

@@ -371,6 +371,24 @@ def test_ac7_warn_store_failure_fail_closed():
     assert "excluded_slots" in resp.payload
 
 
+def test_unknown_warning_case_fails_closed():
+    repo = InMemorySlotRepository()
+    svc = SlotService(repo)
+    warn_store = InMemoryReconcileWarningStore()
+    slot = _make_holding_slot(repo, svc, portfolio_id="pf-A", symbol=SYM_A, qty=10)
+    warn_store.set_warned(str(slot.slot_id), portfolio_id="pf-A", case_code="X")
+
+    resp = _make_handler(repo, warn_store)(_req())
+
+    assert resp.payload["slots"] == []
+    assert resp.payload["degraded"] is True
+    assert resp.payload["reason"] == "warn_store_unavailable"
+    assert resp.payload["excluded_slots"] == {
+        "reconcile_quantity_mismatch": 0,
+        "active_reconcile_warning_cases": {},
+    }
+
+
 def test_ac23_exclusion_precedes_broker_and_strategy_state_readers():
     repo = InMemorySlotRepository()
     svc = SlotService(repo)