fix: TextualMemoryItem pydantic error

Author: Nyakult

src/memos/mem_reader/simple_struct.py

@@ -60,7 +60,7 @@ def _process_chat_data(self, scene_data_info, info):
                     session_id=info.get("session_id"),
                     memory_type=memory_i_raw.get("memory_type", ""),
                     status="activated",
-                    tags=memory_i_raw.get("tags", ""),
+                    tags=memory_i_raw.get("tags", []) if type(memory_i_raw.get("tags", [])) == list else [],
                     key=memory_i_raw.get("key", ""),
                     embedding=self.embedder.embed([memory_i_raw.get("value", "")])[0],
                     usage=[],
@@ -214,7 +214,7 @@ def _process_doc_data(self, scene_data_info, info):
                         session_id=info.get("session_id"),
                         memory_type="LongTermMemory",
                         status="activated",
-                        tags=chunk_res["tags"],
+                        tags=chunk_res["tags"] if type(chunk_res["tags"]) == list else [],
                         key=chunk_res["key"],
                         embedding=self.embedder.embed([chunk_res["value"]])[0],
                         usage=[],