Fix: vision_figure_parser_docx/pdf_wrapper (#12104)

### What problem does this PR solve?

Fix: vision_figure_parser_docx/pdf_wrapper  #11735

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

deepdoc/parser/figure_parser.py

@@ -38,8 +38,8 @@ def vision_figure_parser_figure_data_wrapper(figures_data_without_positions):
 
 
 def vision_figure_parser_docx_wrapper(sections, tbls, callback=None,**kwargs):
-    if not tbls:
-        return []
+    if not sections:
+        return tbls
     try:
         vision_model = LLMBundle(kwargs["tenant_id"], LLMType.IMAGE2TEXT)
         callback(0.7, "Visual model detected. Attempting to enhance figure extraction...")