fix (ner): entity type reference

server.py

@@ -139,7 +139,7 @@ def format_ner_result(text: str, entities: List[Dict]) -> str:
     for entity in sorted_entities:
         start = entity['start']
         end = entity['end']
-        entity_type = entity['entity_group']
+        entity_type = entity['entity_type']
         original_text = text[start:end]
         
         # Replace entity with labeled version