修复关键位现价：模拟盘无密钥时回退 OKX 公开 ticker。

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

app.py

@@ -4178,11 +4178,35 @@ def sync_trade_records_from_exchange(conn, force=False):
 
 # 获取实时价格
 def get_price(symbol):
+    """最新价:优先 ccxt 永续 ticker;失败则走 OKX 公开接口(模拟盘无密钥也能显示)."""
+    ex_sym = ""
     try:
+        ex_sym = normalize_okx_symbol(symbol)
         ensure_markets_loaded()
-        return exchange.fetch_ticker(normalize_okx_symbol(symbol))["last"]
-    except:
-        return None
+        last = exchange.fetch_ticker(ex_sym).get("last")
+        if last is not None:
+            return float(last)
+    except Exception:
+        pass
+    try:
+        sym = normalize_symbol_input(symbol) or (symbol or "").strip().upper()
+        base = (sym.split("/")[0] if "/" in sym else sym.split(":")[0]).strip().upper()
+        if not base:
+            return None
+        # SWAP 与现货公开 ticker 均可作为关键位现价
+        for inst in (f"{base}-USDT-SWAP", f"{base}-USDT"):
+            if not hasattr(exchange, "public_get_market_ticker"):
+                break
+            rows = (exchange.public_get_market_ticker({"instId": inst}) or {}).get("data") or []
+            if not rows:
+                continue
+            row = rows[0] or {}
+            last = row.get("last") or row.get("lastPx") or row.get("markPx")
+            if last is not None and float(last) > 0:
+                return float(last)
+    except Exception:
+        pass
+    return None
 
 # 获取5分钟K线收盘价
 def get_5m_close(symbol):