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

scratch/check_ws_price_validation_2.py

@@ -0,0 +1,22 @@
+from database import TradeDB
+db = TradeDB()
+try:
+    sql = """
+    SELECT 
+        COUNT(*) as total_rows,
+        AVG(kis_age_ms) as avg_kis_age,
+        AVG(kiwoom_age_ms) as avg_kiwoom_age,
+        SUM(CASE WHEN kis_age_ms < kiwoom_age_ms THEN 1 ELSE 0 END) as kis_faster_cnt,
+        SUM(CASE WHEN kiwoom_age_ms < kis_age_ms THEN 1 ELSE 0 END) as kiwoom_faster_cnt,
+        AVG(diff_pct) as avg_diff_pct
+    FROM ws_price_validation
+    WHERE DATE(ts) = '2026-08-10'
+    """
+    row = db.conn.execute(sql).fetchone()
+    
+    import json
+    print("\n--- ws_price_validation Today ---")
+    print(json.dumps(dict(row), indent=2))
+        
+finally:
+    db.close()