test: harden reconcile warning alarm coverage and daemon wiring assertion

Co-authored-by: genichin <4282227+genichin@users.noreply.github.com>

tests/application/test_reconcile_warning_blocking.py

@@ -3,6 +3,8 @@ from __future__ import annotations
 
 import logging
 
+import pytest
+
 from trex_core.application.broker_port import BalanceItem
 from trex_core.application.intents import BuyIntent, IntentService, SellIntent
 from trex_core.application.messaging import RpcRequest
@@ -488,11 +490,8 @@ def test_reconcile_warned_alarm_finalize_failure_and_publish_failure_are_isolate
         warn_store=warn_store,
         alarm_emitter=alarms,
     )
-    try:
+    with pytest.raises(RuntimeError, match="finalize failed"):
         failing_finalize.submit_buy(BuyIntent(intent_id="b-finalize-fail", slot_id=slot.slot_id))
-        assert False, "expected finalize failure"
-    except RuntimeError:
-        pass
     assert alarms.calls == []
 
     soft_fail_alarm = RecordingAlarmEmitter(return_value=False)