Sync exchange PnL when hub loads trade records API.

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

lib/instance/records_api_register.py

@@ -19,7 +19,12 @@ def register_trade_records_api(
     filter_trade_records_excluding_miss: Callable[[list], list],
     app_tz: Any,
     format_price_fn: Callable[[Any, Any], str] | None = None,
+    sync_exchange_pnl_fn: Callable[[Any], Any] | None = None,
 ) -> None:
+    """
+    sync_exchange_pnl_fn(conn): 可选,列表前节流回填交易所已实现盈亏.
+    中控只走本 API,不经实例整页渲染,必须在此触发,否则盈亏U会一直显示「估」.
+    """
     from lib.instance.records_list_lib import list_trade_records_page
 
     @app.route("/api/trade_records")
@@ -40,6 +45,11 @@ def register_trade_records_api(
             offset = 0
         conn = get_db()
         try:
+            if sync_exchange_pnl_fn is not None:
+                try:
+                    sync_exchange_pnl_fn(conn)
+                except Exception:
+                    pass
             payload = list_trade_records_page(
                 conn,
                 start_bj,