feat(trend): 趋势回调保本移交下单监控并统一写交易记录

保本后结束趋势计划，持仓转入下单监控（备注趋势回调），交易所同时挂保本止损与计划止盈；中控或交易所平仓均经下单监控写入交易记录（trend_plan_id、开仓类型），四所共用 strategy_trend_register。

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

strategy_trend_exchange.py

@@ -74,6 +74,15 @@ def trend_market_close(cfg: dict, exchange_symbol: str, direction: str, pos_qty:
     return ex.create_order(exchange_symbol, "market", side, amt, None, {"reduceOnly": True})
 
 
+def trend_replace_tpsl(cfg: dict, order_row: dict, stop_loss: float, take_profit: float) -> None:
+    """趋势保本移交：先撤条件单再挂保本止损 + 计划止盈（与下单监控一致）。"""
+    m = _m(cfg)
+    fn = getattr(m, "replace_active_monitor_tpsl_on_exchange", None)
+    if not callable(fn):
+        raise RuntimeError("当前实例未配置止盈止损同步能力")
+    fn(order_row, float(stop_loss), float(take_profit))
+
+
 def cancel_symbol_orders(cfg: dict, exchange_symbol: str) -> None:
     m = _m(cfg)
     if hasattr(m, "cancel_all_open_orders_for_symbol"):