Recover stuck opening and harden LIVE open/close reconcile.

Stamp open intent, recover opening from exchange option/perp state, skip resell/reopen when already flat, and persist Binance margin mode.

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

backend/app/live/binance_trade.py

@@ -162,7 +162,7 @@ class BinanceTradeClient:
             sz = safe_float(q.get("executedQty")) or sz
             data = q
         if not avg or avg <= 0:
-            raise RuntimeError(f"币安永续无成交均价: {data}")
+            raise RuntimeError(f"币安永续无成交均价 orderId={ord_id} last={data}")
         from .money import abs_fee_usdt
 
         fee = abs(safe_float(data.get("cumCommission")) or 0.0)
@@ -226,10 +226,12 @@ class BinanceTradeClient:
                 if st == "PARTIALLY_FILLED":
                     continue
         if not avg or avg <= 0:
-            raise RuntimeError(f"币安期权无成交均价: {data}")
+            raise RuntimeError(f"币安期权无成交均价 orderId={ord_id} last={data}")
         st_final = str(data.get("status") or "").upper()
         if st_final and st_final != "FILLED":
-            raise RuntimeError(f"币安期权未完全成交 status={st_final} {data}")
+            raise RuntimeError(
+                f"币安期权未完全成交 status={st_final} orderId={ord_id} last={data}"
+            )
         from .money import abs_fee_usdt
 
         fee = abs(safe_float(data.get("fee")) or 0.0)
@@ -336,6 +338,64 @@ class BinanceTradeClient:
             return abs(float(amt))
         return 0.0
 
+    def get_option_pos_sz(self, symbol: str) -> float | None:
+        """期权持仓绝对张数；查不到接口时返回 None。"""
+        try:
+            rows = self._signed(self._eapi, "GET", "/eapi/v1/position", {"symbol": symbol})
+        except Exception as e:
+            logger.warning("binance get_option_pos_sz failed: %s", e)
+            return None
+        if isinstance(rows, dict):
+            rows = [rows]
+        total = 0.0
+        hit = False
+        for row in rows:
+            if not isinstance(row, dict):
+                continue
+            if str(row.get("symbol") or "") and str(row.get("symbol")) != symbol:
+                continue
+            qty = safe_float(row.get("quantity")) or safe_float(row.get("positionAmt")) or 0.0
+            hit = True
+            total += abs(float(qty))
+        return total if hit else 0.0
+
+    def any_option_pos_abs(self) -> float | None:
+        """账户任意期权绝对持仓合计（ETH 期权）。"""
+        try:
+            rows = self._signed(self._eapi, "GET", "/eapi/v1/position", {})
+        except Exception as e:
+            logger.warning("binance any_option_pos_abs failed: %s", e)
+            return None
+        if isinstance(rows, dict):
+            rows = [rows]
+        total = 0.0
+        for row in rows:
+            if not isinstance(row, dict):
+                continue
+            sym = str(row.get("symbol") or "")
+            if sym and not sym.upper().startswith("ETH"):
+                continue
+            qty = safe_float(row.get("quantity")) or safe_float(row.get("positionAmt")) or 0.0
+            total += abs(float(qty))
+        return total
+
+    def set_margin_type(self, symbol: str, margin_type: str) -> None:
+        """ISOLATED | CROSSED。"""
+        mt = "ISOLATED" if str(margin_type).lower() == "isolated" else "CROSSED"
+        try:
+            self._signed(
+                self._fapi,
+                "POST",
+                "/fapi/v1/marginType",
+                {"symbol": symbol, "marginType": mt},
+            )
+        except Exception as e:
+            # 已是目标模式时币安常报错，忽略
+            msg = str(e).lower()
+            if "no need to change" in msg or "-4046" in msg:
+                return
+            raise
+
     def set_leverage(self, symbol: str, leverage: int | float) -> None:
         lev = int(round(float(leverage)))
         if lev < 1: