fix bug

py-client/strategy/trend/positions.py

@@ -31,17 +31,10 @@ def manage_positions(
     market_ok: bool,
     available: float,
 ) -> None:
-    """处理所有真实持仓，并在本轮内统一控制补仓预算。"""
-    active_keys = {
-        _position_key(runtime, position.stock_code)
-        for position in positions
-        if position.volume > 0 and position.stock_code
-    }
-    runtime.profit_tracker.retain(active_keys)
-    remaining_cash = max(0.0, available)
-
+    # 遍历处理每个持仓
     for position in positions:
         try:
+            available = max(0,0,available)
             code = position.stock_code
             tick = ticks.get(code)
             if code in runtime.account_cfg.excluded_codes:
@@ -77,9 +70,9 @@ def manage_positions(
                     position=position,
                     tick=tick,
                     pnl_rate=pnl_rate,
-                    available=remaining_cash,
+                    available=available,
                 )
-                remaining_cash -= loss_decision.reserved_cash
+                available = available - loss_decision.reserved_cash
                 loss_add_action = loss_decision.message or "未触发"
             elif runtime.account_cfg.enable_loss_add_position:
                 loss_add_action = "大盘信号不允许"