模拟盘买币改用公开行情，避免无效 OKX Key 导致 50111。

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

lib/sim/broker_lib.py

@@ -15,6 +15,19 @@ def _now() -> str:
 
 
 def _ticker_bid_ask(exchange: Any, symbol: str) -> tuple[float, float]:
+    """取买卖一.优先 public ticker,避免私钥无效时 ccxt 带坏 Key 导致 50111."""
+    inst = symbol.replace("/", "-") if symbol and "/" in symbol else (symbol or "")
+    if inst and exchange is not None and hasattr(exchange, "public_get_market_ticker"):
+        try:
+            rows = (exchange.public_get_market_ticker({"instId": inst}) or {}).get("data") or []
+            if rows:
+                t = rows[0]
+                bid = t.get("bidPx") or t.get("last") or t.get("lastPx")
+                ask = t.get("askPx") or t.get("last") or t.get("lastPx")
+                if bid is not None and ask is not None and float(bid) > 0 and float(ask) > 0:
+                    return float(bid), float(ask)
+        except Exception:
+            pass
     t = exchange.fetch_ticker(symbol)
     last = t.get("last")
     bid = t.get("bid")

lib/sim/hooks.py

@@ -277,11 +277,9 @@ def _patch_okx_options_lib(app_module: Any) -> None:
         try:
             if _GET_DB is not None and is_sim_mode(_GET_DB):
                 # 对齐实盘: 交易账户 + USDC/USDT 公开买卖一(含手续费滑点)
-                pub = ex
+                pub = _sim_public_exchange(ex)
                 if pub is None and _APP_MODULE is not None:
-                    pub = getattr(_APP_MODULE, "exchange", None) or getattr(
+                    pub = getattr(_APP_MODULE, "exchange_options", None)
-                        _APP_MODULE, "exchange_options", None
-                    )
                 if pub is None:
                     return {"ok": False, "msg": "sim: 无公开行情 exchange"}
                 result = broker().convert_usdt_usdc(
@@ -370,6 +368,15 @@ def _patch_okx_options_lib(app_module: Any) -> None:
     _patch_spot_bridge_lib()
 
 
+def _sim_public_exchange(ex: Any = None) -> Any:
+    """模拟盘行情优先用无密钥/公开实例,避免 options 私钥 50111 污染 public 请求."""
+    if _APP_MODULE is not None:
+        pub = getattr(_APP_MODULE, "exchange", None)
+        if pub is not None:
+            return pub
+    return ex
+
+
 def _patch_spot_bridge_lib() -> None:
     """币本位现货桥:模拟盘走本地 USDT↔ETH/BTC,勿打实盘 private_post_trade_order."""
     import lib.options.options_spot_bridge_lib as bridge_lib
@@ -396,11 +403,7 @@ def _patch_spot_bridge_lib() -> None:
     def spot_market_buy_coin_with_usdt(ex, *, underlying: str, usdt_amount: float):
         try:
             if _GET_DB is not None and is_sim_mode(_GET_DB):
-                pub = ex
+                pub = _sim_public_exchange(ex)
-                if pub is None and _APP_MODULE is not None:
-                    pub = getattr(_APP_MODULE, "exchange", None) or getattr(
-                        _APP_MODULE, "exchange_options", None
-                    )
                 if pub is None:
                     return {"ok": False, "msg": "sim: 无公开行情 exchange"}
                 result = broker().convert_usdt_coin(
@@ -448,11 +451,7 @@ def _patch_spot_bridge_lib() -> None:
                     sell_sz = max(0.0, sell_sz * 0.999)
                 if sell_sz <= 0:
                     return {"ok": False, "msg": f"{coin} 可卖数量过小"}
-                pub = ex
+                pub = _sim_public_exchange(ex)
-                if pub is None and _APP_MODULE is not None:
-                    pub = getattr(_APP_MODULE, "exchange", None) or getattr(
-                        _APP_MODULE, "exchange_options", None
-                    )
                 if pub is None:
                     return {"ok": False, "msg": "sim: 无公开行情 exchange"}
                 result = broker().convert_usdt_coin(