feat(execution): reconcile timed-out orders safely

trex_core/application/messaging_handlers.py

@@ -608,7 +608,9 @@ def _opt_float(v) -> Optional[float]:
 def _opt_int(v) -> Optional[int]:
     if v is None:
         return None
-    return int(v)
+    if not isinstance(v, int) or isinstance(v, bool):
+        raise ValueError("integer required")
+    return v
 
 
 def _opt_dt(v) -> Optional[datetime]: