功能：为 danding_qqpush 消息添加标记以支持自动撤回功能

danding_bot/plugins/danding_qqpush/sender.py

@@ -73,11 +73,12 @@ class MessageSender:
             message.append(MessageSegment.at(qq))
             message.append(MessageSegment.image(image_base64))
             
-            # 发送群消息
+            # 发送群消息，添加 __qqpush_source 标记供 auto_recall 识别
             result = await bot.call_api(
                 "send_group_msg",
                 group_id=group_id,
-                message=message
+                message=message,
+                __qqpush_source="danding_qqpush"  # 添加标记
             )
             
             return {
@@ -121,11 +122,12 @@ class MessageSender:
             message.append(MessageSegment.at(qq))
             message.append(MessageSegment.text(text))
             
-            # 发送群消息
+            # 发送群消息，添加 __qqpush_source 标记供 auto_recall 识别
             result = await bot.call_api(
                 "send_group_msg",
                 group_id=group_id,
-                message=message
+                message=message,
+                __qqpush_source="danding_qqpush"  # 添加标记
             )
             
             return {