feat(alarm): trex-core 알람 emitter + trex.alerts exchange (dcy-033 BAT-049, Implemented)

AlarmEmitter(application, best-effort 비차단)+trex.alerts topic exchange 가산·격리+8 CRITICAL code 배선. 608 passed, opus QC PASS, 팀장 e2e(텔레그램 HTTP200) 통과. REQ-098~101 Implemented.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VHtM5Ws1HKCKQ4JGi6GRb5

tests/adapters/messaging/test_topology.py

@@ -1,4 +1,4 @@
-"""Topology constants + routing key builders (REQ-021)."""
+"""Topology constants + routing key builders (REQ-021, REQ-099)."""
 from __future__ import annotations
 
 from trex_core.adapters.messaging import topology
@@ -12,6 +12,17 @@ def test_topology_constants():
     assert not hasattr(topology, "SNAPSHOT_REQ_QUEUE")
 
 
+# dcy-033 / REQ-099: trex.alerts exchange constant + routing key builder
+def test_alerts_exchange_constant():
+    assert topology.ALERTS_EXCHANGE == "trex.alerts"
+
+
+def test_alarm_routing_key_format():
+    assert topology.alarm_routing_key("critical", "trex-core") == "alarm.critical.trex-core"
+    assert topology.alarm_routing_key("warn", "trex-orb-v1") == "alarm.warn.trex-orb-v1"
+    assert topology.alarm_routing_key("info", "kis-data-hub") == "alarm.info.kis-data-hub"
+
+
 def test_event_routing_key_format():
     assert topology.event_routing_key("slot_filled_buy", "A", "005930") == \
         "slot_filled_buy.A.005930"