거래 빠르게 안티에서 병신만든거 커서로

feat: Implement backtest source management and enhance candle data handling

Changes:
- Introduced a new function `_apply_backtest_source_env_from_request` to manage the environment variables for candle, tick, and order book sources based on incoming requests.
- Added a teardown function `_teardown_backtest_source_env` to ensure that environment variables do not persist between requests, enhancing the stability of the backtesting environment.
- Refactored existing code to utilize the new source management functions, improving code readability and maintainability.
- Added new utility functions in `bt_candle_source.py` for fetching and managing candle data, ensuring consistency with live trading data sources.

Impact:
- These changes improve the flexibility and reliability of the backtesting framework, allowing for better management of data sources and reducing the risk of cross-request contamination.

kis_trader/utils/env.py

@@ -19,6 +19,9 @@ _db_instance = None
 # get_merged_env_snapshot() — TTL 내 재사용 (실매: 웹에서 MAX_DAILY 등 변경 즉시 반영)
 _merged_env_cache: Optional[Dict[str, str]] = None
 _merged_env_cache_ts: float = 0.0
+# get_strategy_env_dict — 전략 config_* 스냅샷 RAM (매 루프 DB 금지)
+# 유니버스/봉 정합과 무관. 임계값·한도만. 기본 1초 · 분단위 동결 금지.
+_strategy_env_cache: Dict[str, Any] = {}
 # env 캐시 세대 카운터 — invalidate 시 +1. 파생 캐시(예: whipsaw 파라미터)가
 # 이 값으로 무효화를 감지해 안전하게 재계산한다(값은 그대로, 재계산 시점만 동일).
 _env_generation: int = 0
@@ -45,9 +48,10 @@ def set_db(db_obj) -> None:
 
 def invalidate_merged_env_cache() -> None:
     """env/config 저장 후 스냅샷 캐시 무효화 (insert_env_snapshot 등)."""
-    global _merged_env_cache, _merged_env_cache_ts, _env_generation
+    global _merged_env_cache, _merged_env_cache_ts, _env_generation, _strategy_env_cache
     _merged_env_cache = None
     _merged_env_cache_ts = 0.0
+    _strategy_env_cache = {}
     _env_generation += 1
 
 
@@ -59,6 +63,17 @@ def _merged_env_cache_ttl_sec() -> float:
         return 60.0
 
 
+def _strategy_env_cache_ttl_sec() -> float:
+    """전략 config_* RAM TTL(초). 기본 1 — 유니버스 분슬롯과 무관.
+
+    웹 저장 시 invalidate_merged_env_cache 로 즉시 무효화.
+    """
+    try:
+        return max(0.0, float(os.environ.get("STRATEGY_ENV_CACHE_TTL_SEC", "1")))
+    except (ValueError, TypeError):
+        return 1.0
+
+
 def env_cache_generation() -> int:
     """현재 env 캐시 세대. invalidate 될 때마다 증가.
 
@@ -105,21 +120,38 @@ def get_strategy_env_dict(strategy_id: str) -> dict:
 
     SCALP → config_scalp, MOMENTUM → config_momentum, SHORT → config_short …
     실매(get_env_from_db) · 웹 · 파라서치가 동일 소스를 쓰도록 한다.
+
+    RAM TTL(``STRATEGY_ENV_CACHE_TTL_SEC`` 기본 1초): 매 루프 config_* SELECT 금지.
+    유니버스 event_time/분슬롯과 무관 — 손절·한도 등 **설정값**만.
+    웹 저장 → ``invalidate_merged_env_cache`` 즉시 반영.
     """
+    global _strategy_env_cache
+    sid = str(strategy_id or "").strip().upper() or "_"
+    ttl = _strategy_env_cache_ttl_sec()
+    now = time.time()
+    gen = _env_generation
+    hit = _strategy_env_cache.get(sid)
+    if (
+        isinstance(hit, dict)
+        and hit.get("gen") == gen
+        and (ttl <= 0 or (now - float(hit.get("ts") or 0)) < ttl)
+        and isinstance(hit.get("data"), dict)
+    ):
+        return hit["data"]
+
     merged = get_merged_env_dict()
     db = _get_db()
-    if db is None:
-        return merged
-    try:
-        if hasattr(db, "get_strategy_config_snapshot"):
-            strat = db.get_strategy_config_snapshot(strategy_id)
-            if strat:
-                out = dict(merged)
-                out.update(strat)
-                return out
-    except Exception as e:
-        logger.debug("strategy env 조회 실패 (%s): %s", strategy_id, e)
-    return merged
+    out = dict(merged)
+    if db is not None:
+        try:
+            if hasattr(db, "get_strategy_config_snapshot"):
+                strat = db.get_strategy_config_snapshot(strategy_id)
+                if strat:
+                    out.update(strat)
+        except Exception as e:
+            logger.debug("strategy env 조회 실패 (%s): %s", strategy_id, e)
+    _strategy_env_cache[sid] = {"data": out, "ts": now, "gen": gen}
+    return out
 
 
 def get_env_from_db(key: str, default: str = "") -> str: