feat(lotto-agent): run_daily_digest task_id wrap

daily_digest에 create_task/update_task_status/add_log task_id wrap 적용.
test_run_daily_digest_creates_task 추가 (75 passed).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

agent-office/tests/test_lotto_task_wrap.py

@@ -92,3 +92,23 @@ async def test_run_signal_check_failure_marks_task_failed(monkeypatch):
     assert len(tasks) == 1
     assert tasks[0]["status"] == "failed"
     assert "boom" in tasks[0]["result_data"]["error"]
+
+
+@pytest.mark.asyncio
+async def test_run_daily_digest_creates_task(monkeypatch):
+    """run_daily_digest이 agent_tasks에 task 생성 + result_data 저장."""
+    from app.agents.lotto import LottoAgent
+    from app.notifiers import telegram_lotto
+
+    async def fake_send(_d): pass
+    monkeypatch.setattr(telegram_lotto, "send_signal_summary", fake_send)
+
+    agent = LottoAgent()
+    result = await agent.run_daily_digest()
+    assert result["ok"] is True
+
+    tasks = db.get_agent_tasks("lotto", task_type="daily_digest", days=1)
+    assert len(tasks) == 1
+    assert tasks[0]["status"] == "succeeded"
+    assert "fired" in tasks[0]["result_data"]
+    assert "evaluated" in tasks[0]["result_data"]