perf(memory): store memories asynchronously to prevent blocking

memory_module/memory_integration.py

@@ -126,7 +126,7 @@ In your response, consider the memories above to provide a personalized answer."
             
             assistant_response = response.choices[0].message.content
             
-            # Step 5: Store the interaction as new memories
+            # Step 5: Store the interaction as new memories (异步执行)
             messages = [
                 {"role": "user", "content": user_input},
                 {"role": "assistant", "content": assistant_response}
@@ -138,7 +138,16 @@ In your response, consider the memories above to provide a personalized answer."
                 "type": "chat_interaction"
             }
             
-            self.add_memory(messages, user_id, metadata)
+            # 异步存储记忆，不阻塞主流程
+            def store_memory_async():
+                try:
+                    self.add_memory(messages, user_id, metadata)
+                except Exception as e:
+                    print(f"[WARNING] Async memory storage failed: {e}")
+            
+            # 启动异步线程存储记忆
+            memory_thread = threading.Thread(target=store_memory_async, daemon=True)
+            memory_thread.start()
             
             return {
                 "success": True,