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

scratch/test_db_loader.py

@@ -0,0 +1,41 @@
+import os
+import time
+import sys
+
+# 수동으로 .env 파일 파싱
+env_path = "/home/hoon/kis_bot/.env"
+if os.path.exists(env_path):
+    with open(env_path, "r") as f:
+        for line in f:
+            line = line.strip()
+            if line and not line.startswith('#') and '=' in line:
+                k, v = line.split('=', 1)
+                os.environ[k.strip()] = v.strip().strip("'\"")
+
+user = os.environ.get("DB_USER", "root")
+password = os.environ.get("DB_PASSWORD", "password")
+host = os.environ.get("DB_HOST", "localhost")
+port = os.environ.get("DB_PORT", "3306")
+dbname = os.environ.get("DB_NAME", "TradeDB")
+
+# sqlx 에서는 URL-encoded 패스워드가 필요할 수 있으나, 특수문자가 심하지 않으면 바로 사용
+dsn = f"mysql://{user}:{password}@{host}:{port}/{dbname}"
+print(f"DSN Ready: mysql://{user}:***@{host}:{port}/{dbname}")
+
+import kis_rust_core
+
+start = time.time()
+try:
+    print("Requesting 10,000 candles from MariaDB directly via Rust...")
+    # 삼성전자(005930) 테스트
+    candles = kis_rust_core.load_candles_from_db(dsn, "005930", 10000)
+    elapsed = time.time() - start
+    print(f"=====================================")
+    print(f"🦀 RUST DB LOADER RESULT:")
+    print(f"Loaded {len(candles)} candles directly in {elapsed:.4f}s")
+    if candles:
+         print(f"First candle (Oldest): {candles[0].time_str} | Open: {candles[0].open}")
+         print(f"Last candle (Newest): {candles[-1].time_str} | Open: {candles[-1].open}")
+    print(f"=====================================")
+except Exception as e:
+    print(f"Error: {e}")