Fix empty recommend list and CTP premarket auto-connect.

Correct main_code order in product refresh, refresh on CTP connect, and limit reconnect to trading or premarket windows.

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

vnpy_bridge.py

@@ -74,6 +74,7 @@ def _load_persisted_last_error() -> str:
 
 _position_refresh_callback: Optional[Callable[[], None]] = None
 _tick_sl_tp_callback: Optional[Callable[[str, str, float], None]] = None
+_ctp_connected_callback: Optional[Callable[[str], None]] = None
 _position_refresh_debounce_lock = threading.Lock()
 _position_refresh_debounce_ts: float = 0.0
 
@@ -89,6 +90,24 @@ def set_tick_sl_tp_callback(fn: Optional[Callable[[str, str, float], None]]) ->
     _tick_sl_tp_callback = fn
 
 
+def set_ctp_connected_callback(fn: Optional[Callable[[str], None]]) -> None:
+    """CTP 交易通道登录成功后回调（mode=simulation|live）。"""
+    global _ctp_connected_callback
+    _ctp_connected_callback = fn
+
+
+def _fire_ctp_connected_callback(mode: str) -> None:
+    fn = _ctp_connected_callback
+    if not fn:
+        return
+    try:
+        threading.Thread(
+            target=fn, args=(mode,), daemon=True, name="ctp-connected-cb",
+        ).start()
+    except Exception as exc:
+        logger.debug("ctp connected callback: %s", exc)
+
+
 def _fire_position_refresh_callback() -> None:
     fn = _position_refresh_callback
     if not fn:
@@ -634,6 +653,7 @@ class CtpBridge:
                             except Exception as exc:
                                 logger.debug("post-connect calibrate: %s", exc)
                             _fire_position_refresh_burst()
+                            _fire_ctp_connected_callback(mode)
                             return
                     finally:
                         self._ee.unregister(EVENT_LOG, _on_log)