Fix CTP exchange routing for non-SHFE contracts and duplicate trade closes.

Resolve CZCE/DCE symbols to the correct exchange for orders, dedupe stop-loss closes and trade logs, and rely on CTP sync for authoritative records.

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

vnpy_bridge.py

@@ -556,7 +556,21 @@ class CtpBridge:
             return Offset.CLOSE
         pos = self._find_position(sym, ex_u, hold_direction)
         if not pos:
-            # 找不到持仓明细时，日盘新开仓优先平今（避免 SHFE「平昨仓位不足」）
+            for p in self._collect_positions():
+                ps = (p.get("symbol") or "").lower()
+                if ps != sym.lower():
+                    continue
+                if (p.get("direction") or "long") != hold_direction:
+                    continue
+                td = int(p.get("td_volume") or 0)
+                yd = int(p.get("yd_volume") or 0)
+                if td >= lots:
+                    return Offset.CLOSETODAY
+                if yd >= lots:
+                    return Offset.CLOSEYESTERDAY
+                if td + yd >= lots:
+                    return Offset.CLOSETODAY
+                break
             if ex_u in ("SHFE", "INE", "CZCE"):
                 return Offset.CLOSETODAY
             return Offset.CLOSE
@@ -1112,6 +1126,8 @@ class CtpBridge:
                 sym, ex_name, d, vol, price, pos=pos,
             )
             open_time = self._lookup_position_open_time(sym, d) or None
+            yd = int(getattr(pos, "yd_volume", 0) or 0)
+            td = max(0, vol - yd)
             out.append({
                 "symbol": sym,
                 "exchange": ex_name,
@@ -1122,6 +1138,8 @@ class CtpBridge:
                 "frozen": int(getattr(pos, "frozen", 0) or 0),
                 "margin": margin,
                 "open_time": open_time,
+                "yd_volume": yd,
+                "td_volume": td,
             })
         return out