Update history_manager.py

Fixed key mismatch in batch undo logic by changing old_batch to old_data to match the history stack.

Author: woshimajintao

annotation_tool/controllers/history_manager.py

@@ -128,7 +128,7 @@ def _apply_state_change(self, cmd, is_undo):
 
         # [NEW] Handle batch smart annotation run
         elif ctype == CmdType.BATCH_SMART_ANNOTATION_RUN:
-            batch_data = cmd['old_batch'] if is_undo else cmd['new_batch']
+            batch_data = cmd['old_data'] if is_undo else cmd['new_data']
 
             for path, data in batch_data.items():
                 if data:
@@ -430,4 +430,4 @@ def _apply_state_change(self, cmd, is_undo):
                     if evt.get('head') == head and evt.get('label') == src:
                         evt['label'] = dst
 
-            self._refresh_active_view()
+            self._refresh_active_view()