fix(trader): M+L 接口校验 (listing_days/NaN/输入校验/类型注数) review

M1: PaperOrder+limit+matcher 加 listing_days(创业/科创/北交所前5日不锁,0=已过)
M3: is_locked_for_*_symbol cfg 注解 AccountConfig
M4: matcher NaN bar 拒单 bar_missing
L3: PositionLedger price/volume 正数校验
L5: PaperOrder __post_init__ volume 类型校验(拒 float/bool)
M5: current_close 契约 docstring + H3 残留注释修正(transfer_fee 双向)
79 tests passed.

sanguo_trader/matcher.py

@@ -50,13 +50,18 @@ def cross_order(
     symbol = order.symbol
     bar_date = str(match_bar.get("date", ""))
 
+    # 0. 停牌/缺 bar（NaN）拒单（review M4）
+    _open = match_bar["open"]
+    if _open != _open:  # NaN 检测（NaN != NaN）
+        return PaperReject(order.strategy_id, symbol, "bar_missing", bar_date)
+
     # 1. 涨跌停封板拒单（raw）
     if order.side == OrderSide.BUY and is_locked_for_buy_symbol(
-        match_bar, symbol, prev_close_raw, cfg, is_st
+        match_bar, symbol, prev_close_raw, cfg, is_st, order.listing_days
     ):
         return PaperReject(order.strategy_id, symbol, "limit_up_locked", bar_date)
     if order.side == OrderSide.SELL and is_locked_for_sell_symbol(
-        match_bar, symbol, prev_close_raw, cfg, is_st
+        match_bar, symbol, prev_close_raw, cfg, is_st, order.listing_days
     ):
         return PaperReject(order.strategy_id, symbol, "limit_down_locked", bar_date)