修正at插件from_plugin=False

src/plugins/built_in/at_user_plugin/plugin.py

@@ -80,19 +80,12 @@ class AtAction(BaseAction):
             reply_to = f"{user_name}:{at_message}"
             extra_info = f"你需要艾特用户 {user_name} 并回复他们说: {at_message}"
             
-            from src.plugin_system.core.event_manager import event_manager
-            from src.plugin_system import EventType
-            # 触发post_llm
-            result = await event_manager.trigger_event(EventType.POST_LLM, permission_group="SYSTEM")
-            if not result.all_continue_process():
-                return False, f"被组件{result.get_summary().get("stopped_handlers","")}打断"
-            
             # 使用回复器生成回复
             success, llm_response, prompt = await replyer.generate_reply_with_context(
                 reply_to=reply_to,
                 extra_info=extra_info,
                 enable_tool=False,  # 艾特回复通常不需要工具调用
-                from_plugin=True    # 标识来自插件
+                from_plugin=False
             )
             
             if success and llm_response: