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>

scripts/optuna_smoke_all_strategies.sh

@@ -0,0 +1,49 @@
+#!/usr/bin/env bash
+# Optuna 전전략 5-trial 스모크 (LS 틱3차 merge 경로 포함)
+# 로그: logs/optuna_smoke_all_YYYYMMDD_HHMMSS.log + 전략별 파일
+set -u
+ROOT="$(cd "$(dirname "$0")/.." && pwd)"
+cd "$ROOT"
+mkdir -p logs
+TS="$(date +%Y%m%d_%H%M%S)"
+DAY="${1:-2026-08-25}"
+TRIALS="${2:-5}"
+MASTER="logs/optuna_smoke_all_${TS}.log"
+STATUSES="logs/optuna_smoke_status_${TS}.txt"
+: >"$STATUSES"
+{
+  echo "======== Optuna smoke start $(date '+%F %T') day=${DAY} trials=${TRIALS} ========"
+  for S in tail momentum breakout scalp; do
+    MODE=fast
+    STUDY="smoke_${S}_${MODE}_${TS}"
+    LOG="logs/optuna_smoke_${S}_${TS}.log"
+    echo "----- ${S} study=${STUDY} -----"
+    set +e
+    python3 -u kis_trader/backtest/param_search_optuna.py \
+      --strategy "$S" \
+      --mode "$MODE" \
+      --trials "$TRIALS" \
+      --start "$DAY" \
+      --end "$DAY" \
+      --min_trades 1 \
+      --orderbook-filter off \
+      --no-progress \
+      --study-name "$STUDY" \
+      >"$LOG" 2>&1
+    RC=$?
+    set -e
+    echo "${S} rc=${RC} log=${LOG}" | tee -a "$STATUSES"
+    echo "----- ${S} done rc=${RC} -----"
+    # 실패 시그니처
+    if rg -q "Traceback|Error|❌|KeyError|AttributeError" "$LOG"; then
+      echo "WARN ${S}: error signature in log" | tee -a "$STATUSES"
+      rg -n "Traceback|Error|❌|KeyError|AttributeError" "$LOG" | head -40 | tee -a "$STATUSES"
+    fi
+    if rg -q "틱 3차 LS|ls_ws_ticks|BT_TICK_LS" "$LOG"; then
+      echo "INFO ${S}: LS tick path mentioned" | tee -a "$STATUSES"
+    fi
+  done
+  echo "======== Optuna smoke end $(date '+%F %T') ========"
+  echo "STATUS_FILE=${STATUSES}"
+} >>"$MASTER" 2>&1
+echo "$MASTER"