v4.12.1-fix

labring/FastGPTv4.12.1-fixAug 15, 2025by c121914yu

AI Summary

Hotfix to resolve a white screen issue encountered on mobile devices during the first chat entry.

Key Highlights

Fixed mobile white screen issue on first chat entry.

Full Release Notes

## 变更内容
1. 修复移动端，首次进入对话时会造成白屏。

## What's Changed
* fix pane undefined by @c121914yu in https://github.com/labring/FastGPT/pull/5472


**Full Changelog**: https://github.com/labring/FastGPT/compare/v4.12.1...v4.12.1-fix