✨ feat(command): 回复时引用原消息

- 使用 event.reply() 替代手动调用 send_group/private_text
- 自动引用触发命令的原消息，回复带引用效果
- 群聊默认 @发送者，可通过 at_sender=false 关闭

handlers/command.py

@@ -35,16 +35,18 @@ async def send_command_callback(data: dict, event, api, logger) -> None:
 
     回调服务器返回格式：
     {
-        "reply": "回复文本",                    // 纯文本回复
+        "reply": "回复文本",                    // 纯文本回复（引用原消息）
         "messages": [                          // 批量回复（可选，优先于 reply）
             {"type": "text", "msg": "..."},
             {"type": "image", "url": "..."},
             {"type": "file", "url": "..."},
             {"type": "video", "url": "..."}
-        ]
+        ],
+        "at_sender": true                      // 是否 @发送者（默认 true，仅群聊）
     }
 
     所有字段均为可选，无回复内容时返回空 JSON 即可。
+    回复会引用触发命令的原消息。
     """
     if not COMMAND_CALLBACK_URL:
         logger.warning("COMMAND_CALLBACK_URL 未配置，跳过命令回调")
@@ -81,13 +83,12 @@ async def send_command_callback(data: dict, event, api, logger) -> None:
 
 
 async def _handle_reply(result: dict, event, api, logger) -> None:
-    """处理回调响应，自动回复到原消息来源。"""
-    group_id = result.get("group_id") or (getattr(event.data, "group_id", None))
-    user_id = result.get("user_id") or event.data.user_id
+    """处理回调响应，引用原消息自动回复。"""
+    at_sender = result.get("at_sender", True)
     messages = result.get("messages")
     reply = result.get("reply")
 
-    # 批量回复（使用 post_group_msg / post_private_msg 组合消息段）
+    # 批量回复：引用 + 批量消息段
     if messages and isinstance(messages, list):
         text_parts: list[str] = []
         image_url: str | None = None
@@ -106,38 +107,27 @@ async def _handle_reply(result: dict, event, api, logger) -> None:
                 file_msgs.append(msg)
 
         text = "\n".join(text_parts) if text_parts else None
+        group_id = getattr(event.data, "group_id", None)
 
         try:
-            if group_id:
-                if text or image_url or video_url:
-                    await api.qq.post_group_msg(
-                        group_id=group_id, text=text, image=image_url, video=video_url,
-                    )
-                for fm in file_msgs:
-                    url = fm.get("url", "")
-                    await api.qq.send_group_file(
-                        group_id=group_id, file=url, name=url.split("/")[-1],
-                    )
-            else:
-                if text or image_url or video_url:
-                    await api.qq.post_private_msg(
-                        user_id=user_id, text=text, image=image_url, video=video_url,
-                    )
-                for fm in file_msgs:
-                    url = fm.get("url", "")
-                    await api.qq.send_private_file(
-                        user_id=user_id, file=url, name=url.split("/")[-1],
-                    )
+            # 组合消息用 event.reply 引用原消息
+            if text or image_url or video_url:
+                await event.reply(text=text, image=image_url, video=video_url, at_sender=at_sender)
+            # 文件单独发（file 是独占段）
+            for fm in file_msgs:
+                url = fm.get("url", "")
+                filename = url.split("/")[-1]
+                if group_id:
+                    await api.qq.send_group_file(group_id=group_id, file=url, name=filename)
+                else:
+                    await api.qq.send_private_file(user_id=event.data.user_id, file=url, name=filename)
         except Exception as exc:
             logger.error("命令回复失败: %s", exc)
         return
 
-    # 纯文本回复
+    # 纯文本回复：引用原消息
     if reply and isinstance(reply, str):
         try:
-            if group_id:
-                await api.qq.send_group_text(group_id=group_id, text=reply)
-            else:
-                await api.qq.send_private_text(user_id=user_id, text=reply)
+            await event.reply(text=reply, at_sender=at_sender)
         except Exception as exc:
             logger.error("命令回复失败: %s", exc)