feat(Core/UI): 백테스트 전역 엔진 선택 버튼 추가 및 스캘핑 Rust 방어로직 포팅 1차 완료

scratch/check_db_details.py

@@ -0,0 +1,48 @@
+import sys
+import os
+sys.path.append(os.path.dirname(os.path.abspath(__file__)) + '/..')
+from database import TradeDB
+
+db = TradeDB()
+try:
+    print("[LS Candidates History]")
+    ls_cand = db.conn.execute("""
+        SELECT HOUR(created_at) as hr, count(*) 
+        FROM ls_candidates_history 
+        WHERE date(created_at) = '2026-08-31' 
+        GROUP BY HOUR(created_at)
+    """).fetchall()
+    for row in ls_cand: print(dict(row))
+
+    print("\n[Target Candidates History]")
+    tc_hist = db.conn.execute("""
+        SELECT HOUR(scan_time) as hr, count(*) 
+        FROM target_candidates_history 
+        WHERE date(scan_time) = '2026-08-31' 
+        GROUP BY HOUR(scan_time)
+    """).fetchall()
+    for row in tc_hist: print(dict(row))
+    
+    print("\n[WS Orderbook Zeros - KIS]")
+    cols = [dict(r)["Field"] for r in db.conn.execute("SHOW COLUMNS FROM ws_orderbook").fetchall()]
+    ts_col = 'ts' if 'ts' in cols else ('timestamp' if 'timestamp' in cols else 'snap_time')
+    
+    zeros = db.conn.execute(f"""
+        SELECT count(*) as c 
+        FROM ws_orderbook 
+        WHERE date({ts_col}) = '2026-08-31' 
+        AND (total_bid_qty = 0 OR total_ask_qty = 0 OR best_bid = 0 OR best_ask = 0)
+    """).fetchone()
+    print("Zeros count:", dict(zeros))
+
+    print("\n[Sample WS Orderbook Zeros - KIS]")
+    samp = db.conn.execute(f"""
+        SELECT * 
+        FROM ws_orderbook 
+        WHERE date({ts_col}) = '2026-08-31' 
+        LIMIT 1
+    """).fetchone()
+    print("Sample:", dict(samp))
+
+finally:
+    db.close()