refactor: enhance Optuna backtesting framework, optimize orderbook filtering, and update database management utilities.

scratch/check_env_snapshot.py

@@ -0,0 +1,20 @@
+import sys
+import json
+sys.path.insert(0, '/home/hoon/kis_bot')
+from database import TradeDB
+
+db = TradeDB()
+try:
+    res = db.conn.execute("SELECT code, name, strategy, env_snapshot FROM active_trades WHERE env_snapshot IS NOT NULL ORDER BY updated_at DESC LIMIT 5").fetchall()
+    if not res:
+        print("현재 active_trades에 env_snapshot이 저장된 거래가 없습니다.")
+    else:
+        print(f"env_snapshot 저장 내역 {len(res)}건 확인:")
+        for r in res:
+            r_dict = dict(r)
+            snap = r_dict['env_snapshot']
+            snap_len = len(snap) if snap else 0
+            print(f"- {r_dict['name']}({r_dict['code']}) [{r_dict['strategy']}] | 스냅샷 길이: {snap_len} bytes")
+except Exception as e:
+    print(f"조회 실패: {e}")
+db.close()