chore: plan for review blockers follow-up

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

tests/application/test_snapshot_scheduler.py

@@ -1,7 +1,8 @@
 """Snapshot scheduler tests (REQ-030 AC-1; REQ-114 AC-1~9; REQ-115 AC-1~6)."""
 from __future__ import annotations
 
-from datetime import datetime, timezone, timedelta
+from datetime import UTC, datetime, timedelta, timezone
+from types import SimpleNamespace
 from unittest.mock import MagicMock
 
 from trex_core.adapters.broker.paper import PaperBroker
@@ -44,10 +45,42 @@ def test_run_once_failure_sets_degraded_signal():
     store = SnapshotStore()
     sched = SnapshotScheduler(read_port=BadRead(), store=store, broker=PaperBroker())
     assert sched.run_once() is False
-    reason, msg = store.degraded_state()
+    reason, _msg = store.degraded_state()
     assert reason is not None and reason.value == "portfolio_hub_unavailable"
 
 
+def test_run_once_uses_authoritative_core_holdings_broker(monkeypatch):
+    read = StubPortfolioRead(
+        daemon_id="d-1",
+        items=[PortfolioItem(portfolio_id="pf-X", symbol="X", cash_balance=100, asset_quantity=0)],
+    )
+    store = SnapshotStore()
+    projected_broker = object()
+    authoritative_broker = object()
+    captured = {}
+
+    def _capture(**kwargs):
+        captured["broker"] = kwargs["broker"]
+        return {}
+
+    monkeypatch.setattr(
+        "trex_core.application.reconciliation.reconcile_core_holdings",
+        _capture,
+    )
+    sched = SnapshotScheduler(
+        read_port=read,
+        store=store,
+        broker=projected_broker,
+        core_holdings_broker=authoritative_broker,
+        slot_repo=object(),
+        slot_service=SimpleNamespace(instance_key="inst-1"),
+    )
+    sched._reconcile_slots = lambda _items: None
+
+    assert sched.run_once() is True
+    assert captured["broker"] is authoritative_broker
+
+
 def test_swap_preserves_warning_for_carried_over_portfolio():
     store = SnapshotStore()
     store.swap([PortfolioItem(portfolio_id="pf-X", symbol="X",
@@ -99,7 +132,7 @@ def _fixed_clock(kst_hour=8, kst_minute=0):
     """Return a clock callable fixed at a given KST time today."""
     now_kst = datetime.now(tz=_KST).replace(hour=kst_hour, minute=kst_minute,
                                              second=0, microsecond=0)
-    return lambda: now_kst.astimezone(timezone.utc)
+    return lambda: now_kst.astimezone(UTC)
 
 
 # ---------------------------------------------------------------------------
@@ -616,8 +649,8 @@ def test_kis_broker_reinitialize_preserves_base_url_and_flags():
 def test_build_kis_reinit_callback_returns_none_for_paper():
     """REQ-113 AC-2: broker=paper이면 callback=None."""
     from trex_core.adapters.broker.paper import PaperBroker as PB
-    from trex_core.runtime.daemon import _build_kis_reinit_callback
     from trex_core.runtime.config import DaemonConfig
+    from trex_core.runtime.daemon import _build_kis_reinit_callback
 
     # minimal config: paper broker, credential_fetch_enabled=True
     cfg = DaemonConfig(dsn="x", broker="paper", execution_interval_sec=1.0,
@@ -629,8 +662,8 @@ def test_build_kis_reinit_callback_returns_none_for_paper():
 def test_build_kis_reinit_callback_returns_none_when_disabled():
     """REQ-113 AC-1: credential_fetch_enabled=False이면 callback=None."""
     from trex_core.adapters.broker.paper import PaperBroker as PB
-    from trex_core.runtime.daemon import _build_kis_reinit_callback
     from trex_core.runtime.config import DaemonConfig
+    from trex_core.runtime.daemon import _build_kis_reinit_callback
 
     cfg = DaemonConfig(dsn="x", broker="kis", execution_interval_sec=1.0,
                        credential_fetch_enabled=False)
@@ -642,8 +675,8 @@ def test_build_kis_reinit_callback_returns_callable_for_kis():
     """REQ-113 AC-2 / REQ-115 AC-1: broker=kis + fetch enabled → callable 반환 + 실제 reinitialize 호출됨."""
     from trex_core.adapters.broker.kis import KISBroker
     from trex_core.application.portfolio import BrokerCredentialPayload
-    from trex_core.runtime.daemon import _build_kis_reinit_callback
     from trex_core.runtime.config import DaemonConfig
+    from trex_core.runtime.daemon import _build_kis_reinit_callback
 
     cfg = DaemonConfig(dsn="x", broker="kis", execution_interval_sec=1.0,
                        credential_fetch_enabled=True)