From 0808c50ee839b30aabeec7f097198a2fe51f2cb0 Mon Sep 17 00:00:00 2001
From: songkl <songkl@mt5.local>
Date: Tue, 12 May 2026 00:02:02 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20=E5=AF=B9=E5=86=B2=E6=89=8B=E6=95=B0?=
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问题: 0.01手 × 0.5(半仓对冲比例) = 0.005手 < 最小手数0.01
      API拒绝下单, order_id=0

修复: execute_hedge 增加手数校验, 强制不低于volume_min
---
 core/risk/hedge.py | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/core/risk/hedge.py b/core/risk/hedge.py
index 91c537e..3ba4528 100644
--- a/core/risk/hedge.py
+++ b/core/risk/hedge.py
@@ -107,6 +107,17 @@ class HedgeManager:
         ratio = self.signal_hedge_ratio if hedge_type == "signal" else self.drawdown_hedge_ratio
         hedge_volume = position["quantity"] * ratio
 
+        # ★ 手数校验：不能低于最小手数
+        symbol_info = self._pm.data_provider.get_symbol_info(self._pm.symbol)
+        if symbol_info:
+            vol_min = symbol_info.get("volume_min", 0.01) if isinstance(symbol_info, dict) else getattr(symbol_info, "volume_min", 0.01)
+            vol_step = symbol_info.get("volume_step", 0.01) if isinstance(symbol_info, dict) else getattr(symbol_info, "volume_step", 0.01)
+            hedge_volume = max(vol_min, round(hedge_volume / vol_step) * vol_step)
+        else:
+            hedge_volume = max(0.01, hedge_volume)
+
+        logger.info(f"🔒 准备对冲: {opposite} {hedge_volume:.2f}手 | 原因: {reason}")
+
         # 调取开仓
         result = self._pm.data_provider.send_order(
             self._pm.symbol, opposite, hedge_volume