feat(messaging): OPS-005 이벤트 발행 연결 신뢰성 (BAT-047)

발행 전용 연결의 idle heartbeat 사망 후 첫 발행 유실 결함 제거.
- REQ-091 발행 재시도 + 강제 재연결(_force_reconnect, is_open 불신)
- REQ-092 idle keepalive(execution-loop 단일스레드 틱, process_data_events time_limit=0)
- REQ-093 DLQ 가시성 + emit 실패 ERROR 경보(구조화 로그, dcy-029 재사용)
- REQ-094 baseline 문서 정합(runtime-flows/operations/project-structure)

독립 opus QC PASS-WITH-NOTES → 시정 2건(ruff F401, AC-3 프로덕션 경로) 완료.
554 passed/47 skipped/회귀 0/ruff clean. NFR-1 wire 무회귀(interface-contract diff 0).
BAT-047 release-candidate, REQ-091~094 Implemented. dcy-031. M2 트랙B.

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

docs/project-structure.md

@@ -4,7 +4,7 @@
 - Baseline Seed: .stage-pilot/bootstrap/baseline.yaml
 - Status: draft
 - Owner: project maintainers
-- Last Updated (KST): 2026-06-10 (BAT-031 — dcy-021 포지션 사이징)
+- Last Updated (KST): 2026-06-19 (BAT-047 — dcy-031 이벤트 발행 연결 신뢰성)
 - Source Discovery / Batch: bootstrap-baseline (pre-Discovery, 3-phase lifecycle 밖의 bootstrap 산출물)
 
 ## Project Summary
@@ -74,7 +74,7 @@
 │   │   ├── execution.py          # ExecutionService (dispatch·poll·transition·reconcile + ledger enqueue + event emit hook)
 │   │   ├── ledger_port.py        # LedgerPort + LedgerTrade/LedgerWriteResult/예외 (BAT-006)
 │   │   ├── ledger_outbox.py      # LedgerOutbox Protocol + LedgerWriter + InMemoryLedgerOutbox (BAT-006)
-│   │   ├── messaging.py          # MessagingTransport Protocol + DTO + TransportHealth (BAT-007)
+│   │   ├── messaging.py          # MessagingTransport Protocol + DTO + TransportHealth + keepalive_tick() no-op (BAT-007, BAT-047/REQ-092)
 │   │   ├── messaging_handlers.py # intent/snapshot/pause RPC handlers (+update_thresholds REQ-040) + slot event payload builder (BAT-007/BAT-008/BAT-011)
 │   │   ├── portfolio.py          # PortfolioHubReadPort + SnapshotStore + PauseStore + envelope builder (BAT-008)
 │   │   ├── reconciliation.py     # reconcile_positions + reconcile_core_holdings(REQ-062) (BAT-008/029)
@@ -86,12 +86,12 @@
 │   ├── adapters/                 # 인프라 어댑터 (BAT-002, BAT-004, BAT-006, BAT-007, BAT-008)
 │   │   ├── broker/               # paper.py(결정적 async 더블 + 현재가 stub) · kis.py(KIS Open API + 잔고조회 + 현재가 polling)  (BAT-004/BAT-008/BAT-011)
 │   │   ├── ledger/               # in_memory.py(stub) · portfolio_hub.py(HTTP 어댑터)  (BAT-006)
-│   │   ├── messaging/            # topology.py(동적 큐명 빌더 + trex.direct/trex.broadcast exchange, BAT-013) · in_memory.py(stub) · rabbitmq.py(pika 동기, declare_topology(instance_key))  (BAT-007/BAT-013)
+│   │   ├── messaging/            # topology.py(동적 큐명 빌더 + trex.direct/trex.broadcast exchange, BAT-013) · in_memory.py(stub, keepalive_tick no-op) · rabbitmq.py(pika 동기, declare_topology(instance_key), publish_event 재시도+강제 재연결, keepalive_tick, _publish_dlq ERROR 로그)  (BAT-007/BAT-013/BAT-047)
 │   │   ├── portfolio/            # hub_read.py(HTTP) · stub_read.py(stub) · pause_store.py(Postgres) · killswitch_store.py(day-scoped, BAT-012) (BAT-008)
 │   │   └── persistence/          # postgresql.py(+PostgreSQLLedgerOutbox) · ops_checks.py(ledger-gap, transition_log 기반) · in_memory_intent_store.py · migrate.py · sql/(001~009, 010_literal_inactive_status.sql, 011_drop_pool_model_columns.sql)
 │   └── runtime/                  # 데몬 (BAT-002, BAT-004, BAT-006, BAT-007, BAT-008)
 │       ├── config.py             # DaemonConfig(+instance_key, max_active_slots) + KISConfig + PortfolioHubConfig + RabbitMQConfig + SnapshotScheduleConfig + SafetySellConfig + DaemonInstanceConfig.from_toml/from_config (env + per-instance TOML, BAT-013/028/030)
-│       ├── daemon.py             # Daemon class: `--config` TOML 진입점(BAT-013) + setup(migrate/reconcile/declare-topology(instance_key)) + 7 worker threads(instance_key 큐 구독) + WatchdogStore + KillSwitchService + graceful shutdown
+│       ├── daemon.py             # Daemon class: `--config` TOML 진입점(BAT-013) + setup(migrate/reconcile/declare-topology(instance_key)) + 7 worker threads(instance_key 큐 구독) + WatchdogStore + KillSwitchService + graceful shutdown. _execution_loop 각 틱 시작 시 event_publisher.keepalive_tick() 호출(REQ-092). _make_event_emitter 발행 최종 실패 시 ERROR 로그(REQ-093).
 │       ├── reset.py             # trex-core-reset: slot-core 테이블 wipe + 자산 중심 재초기화 (REQ-064, BAT-030)
 │       ├── logging_setup.py      # 구조화 로깅(ISO8601 KST·레벨·Loki JSON·correlation id) + configure_logging (BAT-045 / REQ-084, dcy-029)
 │       └── cli.py                # trex-core CLI: pause/resume/paused + universe/slots/enter/exit/cancel + report(REQ-088) (BAT-008/020/046 / REQ-032)
@@ -100,7 +100,8 @@
     ├── domain/                   # test_domain_import_sweep (NFR-1 가드, BAT-006/BAT-007)
     ├── application/              # test_intent_concurrency · test_execution · test_execution_ledger · test_ledger_outbox · test_messaging_intent_consumer · test_messaging_snapshot_consumer · test_messaging_event_publisher
     ├── runtime/                  # test_config_dotenv · test_daemon_no_http_surface (BAT-007 HTTP 표면 0 회귀 가드)
-    └── adapters/{broker,ledger,messaging,persistence}/  # paper/KIS · in_memory/portfolio-hub ledger · stub/RabbitMQ transport (게이트) · PG repo/migration/outbox
+    ├── adapters/{broker,ledger,messaging,persistence}/  # paper/KIS · in_memory/portfolio-hub ledger · stub/RabbitMQ transport (게이트) · PG repo/migration/outbox
+    │   └── messaging/test_publish_reliability.py        # BAT-047 신규 — publish 재시도/keepalive/DLQ 가시성 단위 테스트 (mock 기반, 17건)
 ```
 
 > 참고: domain(BAT-001)은 무의존 코어. application/adapters/runtime 은 BAT-002 에서 추가, BAT-004 에서 broker/execution 레이어 확장, BAT-006 에서 ledger 레이어 추가, BAT-007 에서 messaging 레이어(application MessagingTransport + adapters/messaging + sync+thread 데몬) 추가와 HTTP 어댑터 제거. 외부 의존(psycopg/httpx/redis/pika)은 adapters/runtime 에만 격리(NFR-1, import 스윕으로 강제). 브로커 주문은 BrokerPort 단일 세션(불변식 B), 슬롯 쓰기는 SlotService 단일 writer(불변식 A), ledger 기록은 집행 경로 단일 주체(NFR-3), 메시지 transport 는 MessagingTransport 단일 경계.