feat(hub): show exchange mark price on monitor positions

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

manual_trading_hub/agent.py

@@ -408,6 +408,24 @@ def _position_entry_price(p: dict[str, Any]) -> float | None:
     return None
 
 
+def _position_mark_price(p: dict[str, Any]) -> float | None:
+    """四所 ccxt 持仓统一解析标记价（用于强平/浮盈计算）。"""
+    info = p.get("info") or {}
+    if not isinstance(info, dict):
+        info = {}
+    for key in (
+        p.get("markPrice"),
+        p.get("mark_price"),
+        info.get("markPx"),
+        info.get("mark_price"),
+        info.get("markPrice"),
+    ):
+        px = _finite_or_none(key)
+        if px is not None and px > 0:
+            return px
+    return None
+
+
 def _extract_usdt_total(balance: dict[str, Any]) -> float | None:
     """从 ccxt balance 结构中尽量取出 USDT 总额（与 crypto_monitor_binance 一致）。"""
     usdt_info = balance.get("USDT") or {}
@@ -583,6 +601,10 @@ def _status_inner(x_control_token: str | None) -> Any:
             notional_f = None
         entry_f = _position_entry_price(p)
         _, entry_fmt, price_tick = _position_price_fmt(ex, sym, entry_f)
+        mark_f = _position_mark_price(p)
+        _, mark_fmt, mark_tick = _position_price_fmt(ex, sym, mark_f)
+        if price_tick is None and mark_tick is not None:
+            price_tick = mark_tick
         positions_out.append(
             {
                 "symbol": sym,
@@ -593,6 +615,8 @@ def _status_inner(x_control_token: str | None) -> Any:
                 "unrealized_pnl": _finite_or_none(upnl_f),
                 "entry_price": entry_f,
                 "entry_price_fmt": entry_fmt,
+                "mark_price": mark_f,
+                "mark_price_fmt": mark_fmt,
                 "price_tick": _finite_or_none(price_tick) if price_tick is not None else None,
             }
         )