perf: modify the at logic in the DingTalk adapter (#3186)

* feat 初次提交

* fix: Modify the At logic in the DingTalk adapter.

* del uv.lock

* 添加at_users为空判断

* 优化钉钉at的处理逻辑，不用重复判断机器人是否is_in_at_list

* fix: refine handling of mentioned users in group messages

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Co-authored-by: linyiming <linyiming@example.com>
Co-authored-by: Soulter <905617992@qq.com>

astrbot/core/platform/sources/dingtalk/dingtalk_adapter.py

@@ -100,8 +100,11 @@ class DingtalkPlatformAdapter(Platform):
         abm.raw_message = message
 
         if abm.type == MessageType.GROUP_MESSAGE:
-            if message.is_in_at_list:
-                abm.message.append(At(qq=abm.self_id))
+            # 处理所有被 @ 的用户（包括机器人自己，因 at_users 已包含）
+            if message.at_users:
+                for user in message.at_users:
+                    if user.dingtalk_id:
+                        abm.message.append(At(qq=user.dingtalk_id))
             abm.group_id = message.conversation_id
             if self.unique_session:
                 abm.session_id = abm.sender.user_id