feat(옵투나·웹): 후처리 재탐색·ob_modes·적용감사·수집통계

- Optuna web jobs/TPE/apply snapshot·틱로더 정합, jobs limit·감사로그
- 백테 UI 호가모드·후보 적용 흐름, feed_collect_stats API/탭
- 가설검증·교차검증 룰, 4전략 스모크·OB slot41 진단 스크립트

Co-authored-by: Cursor <cursoragent@cursor.com>

kis_trader/backtest/param_search_optuna.py

@@ -201,11 +201,21 @@ def prepare_tail_search_context(
             base_params["_orderbook_filter_enabled"] = False
         elif _ob_mode == "on":
             base_params["_orderbook_filter_enabled"] = True
-        ob_filter_on = bool(base_params.get("_orderbook_filter_enabled")) or _ob_mode == "auto"
+        from kis_trader.backtest.optuna_tpe_common import optuna_tpe_needs_orderbook_feed
+
+        need_ob_feed = optuna_tpe_needs_orderbook_feed(mode, _ob_mode)
+        ob_filter_on = (
+            bool(base_params.get("_orderbook_filter_enabled"))
+            or _ob_mode == "auto"
+            or need_ob_feed
+        )
+        if need_ob_feed:
+            base_params["backtest_use_trigger_snapshot_db"] = True
         logger.info(
-            "📌 호가필터: %s (%s)",
+            "📌 호가필터: %s (%s)%s",
             _ob_mode.upper(),
-            "적용" if ob_filter_on else "스킵 — 코어 파라미터 순수 탐색",
+            "스냅로드" if need_ob_feed else ("적용" if ob_filter_on else "스킵 — 코어 파라미터 순수 탐색"),
+            " · TPE 호가축" if need_ob_feed else "",
         )
 
         from kis_trader.backtest.backtest_portfolio_common import load_portfolio_env_row
@@ -949,10 +959,11 @@ def main() -> None:
         )
     elif strategy == "breakout" and mode == "tpe":
         from kis_trader.backtest.optuna_breakout_tpe_space import (
-            normalize_tpe_breakout_sl_mode,
+            breakout_tpe_study_extra,
         )
-        _study_extra = normalize_tpe_breakout_sl_mode(
+        _study_extra = breakout_tpe_study_extra(
             getattr(args, "sl_mode", None) or "fixed",
+            getattr(args, "orderbook_filter", None) or "off",
         )
     study_name = resolve_study_name(
         strategy=strategy,