Count instance win rate by positive PnL and show external closes as manual close.

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

trade_result_lib.py

@@ -1,12 +1,39 @@
 """交易结果展示与入库时的语义归一化。"""
 
+_WIN_EPS = 1e-9
+
+
+def normalize_display_result(result):
+    """展示用：外部平仓一律视为手动平仓。"""
+    res = (result or "").strip()
+    if res == "外部平仓" or res.startswith("外部平仓"):
+        return "手动平仓"
+    return res
+
+
+def is_winning_pnl(pnl_amount) -> bool:
+    """胜率统计：盈亏为正即计为盈利单。"""
+    try:
+        return float(pnl_amount or 0) > _WIN_EPS
+    except (TypeError, ValueError):
+        return False
+
+
+def sql_effective_pnl_expr() -> str:
+    """与 to_effective_trade_dict / hub_trades_lib 一致的盈亏 SQL 表达式。"""
+    return "COALESCE(reviewed_pnl_amount, exchange_realized_pnl, pnl_amount, 0)"
+
+
+def count_winning_trades(trades) -> int:
+    return sum(1 for r in trades or [] if is_winning_pnl(r.get("effective_pnl_amount")))
+
 
 def normalize_result_with_pnl(result, pnl_amount):
     """
     非手动平仓且实际盈利时，不应记为「止损」。
     程序触发的止损类平仓若盈亏为正，归类为「移动止盈」。
     """
-    res = (result or "").strip()
+    res = normalize_display_result(result)
     if res == "手动平仓":
         return res
     if res == "止损":