fix(lotto): Phase 3 리뷰 반영 (run-forward 백그라운드·review 404·track_record distinct·테스트 보강)

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

lotto/tests/test_backtest_db.py

@@ -189,3 +189,5 @@ def test_track_record_and_review_payload(monkeypatch):
     assert "winner_analysis" in payload     # 당첨조합 5분석치
     assert "forward" in payload             # 이번 회차 전략별 성적
     assert "calibration_trend" in payload
+    assert payload["winner_analysis"] is not None
+    assert "score_total" in payload["winner_analysis"]