Add close price column to trade records for overnight position PnL review.

Co-authored-by: Cursor <cursoragent@cursor.com>

trade_log_lib.py

@@ -32,6 +32,42 @@ def calc_equity_after(capital: float, pnl_net: float) -> float | None:
     return round(cap + float(pnl_net or 0), 2)
 
 
+def recalc_trade_log_pnl(
+    *,
+    symbol: str,
+    direction: str,
+    entry_price: float,
+    close_price: float,
+    lots: float,
+    stop_loss: float | None = None,
+    take_profit: float | None = None,
+    open_time: str = "",
+    close_time: str = "",
+    trading_mode: str = "simulation",
+    capital: float = 0.0,
+) -> dict[str, float]:
+    """按开/平仓价重算盈亏与手续费（跨日持仓可手动改价后核对）。"""
+    from contract_specs import calc_position_metrics
+    from fee_specs import calc_round_trip_fee
+
+    sym = (symbol or "").strip()
+    direction = (direction or "long").strip().lower()
+    entry = float(entry_price or close_price or 0)
+    close_px = float(close_price or 0)
+    lots_f = float(lots or 0)
+    sl = float(stop_loss) if stop_loss is not None else entry
+    tp = float(take_profit) if take_profit is not None else entry
+    metrics = calc_position_metrics(
+        direction, entry, sl, tp, lots_f, close_px, capital, sym,
+    )
+    pnl = round(float(metrics.get("float_pnl") or 0), 2)
+    fee = calc_round_trip_fee(
+        sym, entry, close_px, lots_f, open_time, close_time, trading_mode=trading_mode,
+    )
+    pnl_net = round(pnl - fee, 2)
+    return {"pnl": pnl, "fee": round(fee, 2), "pnl_net": pnl_net}
+
+
 def _read_initial_capital(conn, initial_capital: float | None = None) -> float:
     if initial_capital is not None and initial_capital > 0:
         return float(initial_capital)