feat: add document_list to context in base_document_split_node

Author: liuruibin

apps/application/flow/step_node/document_split_node/impl/base_document_split_node.py

@@ -85,6 +85,7 @@ def execute(self, document_list, knowledge_id, split_strategy, paragraph_title_r
             paragraph_list += results
 
         self.context['paragraph_list'] = paragraph_list
+        self.context['document_list'] = file_list
         self.context['limit'] = limit
         self.context['chunk_size'] = chunk_size
         self.context['with_filter'] = with_filter
@@ -170,4 +171,5 @@ def get_details(self, index: int, **kwargs):
             'with_filter': self.context.get('with_filter'),
             'patterns': self.context.get('patterns'),
             'split_strategy': self.context.get('split_strategy'),
+            'document_list': self.context.get('document_list', []),
         }