调整插件执行顺序：ai_auto_response改为最后兜底

- 在消息插件调度中增加排序逻辑\n- 通过 feature_key/模块名/插件名识别 ai_auto_response\n- 保持其他插件原有顺序，确保命令类插件优先命中\n- ai_auto_response 放到末位执行，避免前置抢占

robot.py

@@ -569,6 +569,7 @@ class Robot:
             self.LOG.info(f"夜间休眠时间(00:30-05:00)，忽略消息: {msg}")
             return False
         message_plugins = self.plugin_registry.get_plugins_by_type(MessagePluginInterface)
+        message_plugins = self._sort_message_plugins(message_plugins)
         if not message_plugins:
             return False
 
@@ -608,6 +609,26 @@ class Robot:
 
         return False
 
+    @staticmethod
+    def _sort_message_plugins(message_plugins):
+        """将兜底型插件放到最后执行，避免影响其他插件命中。"""
+        if not message_plugins:
+            return []
+
+        def is_fallback_plugin(plugin):
+            feature_key = str(getattr(plugin, "feature_key", "") or "").strip().upper()
+            module_name = str(getattr(plugin.__class__, "__module__", "") or "").lower()
+            plugin_name = str(getattr(plugin, "name", "") or "").strip().lower()
+            return (
+                feature_key == "AI_AUTO_RESPONSE"
+                or "plugins.ai_auto_response" in module_name
+                or plugin_name in {"小牛群聊bot", "ai_auto_response"}
+            )
+
+        normal_plugins = [plugin for plugin in message_plugins if not is_fallback_plugin(plugin)]
+        fallback_plugins = [plugin for plugin in message_plugins if is_fallback_plugin(plugin)]
+        return normal_plugins + fallback_plugins
+
     def get_all_contacts(self) -> dict:
         """获取所有联系人信息并返回字典格式 {wxid: nickname}"""
         try: