[功能请求] 请求添加转发的聊天记录中图片的批量保存

### QQ(TIM)版本/QQ(TIM) Version

v8.8.95.8265

### 为什么你认为需要此功能

聊天记录中有大量的图片需要保存到手机

### 联系到哪些已经存在的bug或者功能

qq自带的将图片原图保存到本地功能，需要批量调用该方法

### 具体功能需要/Specific features require

在接收转发“合并”的聊天记录时，需要保存聊天记录中的多个，甚至是全部的图片到本地（如果是没有批量保存，则需要点开每个图片并长按保存）

Start by locating the handling for received forwarded or merged chat records and the existing QQ/TIM operation for saving an original image locally. Trace how images are exposed in a merged record, then determine how a single action could apply that save operation to multiple or all images. Done means the images in a forwarded record can be saved locally in bulk.

Written by the indexing model from the issue text.