fix(agent-office/lotto): deep CuratorError fallthrough + urgent 발송 재시도

결함1: deep signal-check에서 curate_weekly가 CuratorError면 전체 check가 abort돼 sim/drift 시그널이 미평가되던 문제 → try/except로 confidence만 포기하고 sim/drift는 계속(curate_result=None fallthrough).
결함2: send_urgent_signal 실패가 outer except로 빠져 task 실패+미마킹이던 문제 → _send_urgent_with_retry(3회/60s) 추출, 최종 실패해도 raise 안 함(시그널 평가·태스크 보존), 성공 시에만 mark_signal_notified. TDD 3 신규 테스트.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

agent-office/tests/test_lotto_task_wrap.py

@@ -96,6 +96,81 @@ async def test_run_signal_check_failure_marks_task_failed(monkeypatch):
     assert "boom" in tasks[0]["result_data"]["error"]
 
 
+@pytest.mark.asyncio
+async def test_deep_curate_error_still_evaluates_signals(monkeypatch):
+    """deep: curate_weekly가 CuratorError여도 sim/drift 시그널 평가는 계속(fallthrough)."""
+    from app.agents.lotto import LottoAgent
+    from app.curator import signal_runner, pipeline
+    from app import service_proxy
+    from app.notifiers import telegram_lotto
+
+    async def boom_curate(**kwargs):
+        raise pipeline.CuratorError("curation 실패")
+    monkeypatch.setattr(pipeline, "curate_weekly", boom_curate)
+
+    called = {"signal": False, "curate_result": "UNSET"}
+    async def fake_signal(**kwargs):
+        called["signal"] = True
+        called["curate_result"] = kwargs.get("curate_result")
+        return {"overall_fire": "normal", "results": [
+            {"signal_id": 1, "metric": "sim_signal", "value": 0.6, "z_score": 1.7,
+             "fire_level": "normal", "baseline_mu": 0.5, "baseline_sigma": 0.05, "payload": {}}]}
+    monkeypatch.setattr(signal_runner, "run_signal_check", fake_signal)
+
+    async def fake_latest():
+        return 1226
+    monkeypatch.setattr(service_proxy, "lotto_latest_draw", fake_latest)
+    async def fake_send(_e):
+        pass
+    monkeypatch.setattr(telegram_lotto, "send_urgent_signal", fake_send)
+
+    agent = LottoAgent()
+    result = await agent.run_signal_check(source="deep")
+    assert result["ok"] is True            # CuratorError로 중단되지 않음
+    assert called["signal"] is True        # sim/drift 평가 계속됨
+    assert called["curate_result"] is None  # confidence는 None으로 fallthrough
+
+
+@pytest.mark.asyncio
+async def test_urgent_send_retries_then_succeeds(monkeypatch):
+    """urgent 발송이 실패하면 재시도하고, 성공하면 True."""
+    from app.agents.lotto import LottoAgent
+    from app.notifiers import telegram_lotto
+    import app.agents.lotto as lotto_mod
+    monkeypatch.setattr(lotto_mod, "URGENT_SEND_RETRY_SEC", 0)  # 실대기 제거
+
+    attempts = {"n": 0}
+    async def flaky_send(_event):
+        attempts["n"] += 1
+        if attempts["n"] < 3:
+            raise RuntimeError("telegram down")
+    monkeypatch.setattr(telegram_lotto, "send_urgent_signal", flaky_send)
+
+    agent = LottoAgent()
+    results = [{"signal_id": 1, "fire_level": "urgent"}]
+    ok = await agent._send_urgent_with_retry({"x": 1}, results, task_id="t1")
+    assert ok is True
+    assert attempts["n"] == 3
+
+
+@pytest.mark.asyncio
+async def test_urgent_send_all_fail_returns_false_no_raise(monkeypatch):
+    """urgent 발송이 끝까지 실패해도 raise하지 않고 False (시그널 평가/태스크 보존)."""
+    from app.agents.lotto import LottoAgent
+    from app.notifiers import telegram_lotto
+    import app.agents.lotto as lotto_mod
+    monkeypatch.setattr(lotto_mod, "URGENT_SEND_RETRY_SEC", 0)
+
+    async def always_fail(_event):
+        raise RuntimeError("telegram down")
+    monkeypatch.setattr(telegram_lotto, "send_urgent_signal", always_fail)
+
+    agent = LottoAgent()
+    ok = await agent._send_urgent_with_retry(
+        {"x": 1}, [{"signal_id": 1, "fire_level": "urgent"}], task_id="t1")
+    assert ok is False
+
+
 @pytest.mark.asyncio
 async def test_run_daily_digest_creates_task(monkeypatch):
     """run_daily_digest이 agent_tasks에 task 생성 + result_data 저장."""