[Bug]: 可以出个兼容 flutter 3.29.0的demo

### 请描述遇到的问题，以及您所期望的正确的结果

可以出个兼容 flutter 3.29.0的demo

### 请说明如何操作会遇到上述问题

_No response_

### 在下面填入关键复现代码

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### 复现的平台

Both

### Flutter SDK版本

3.29.0

### FlutterBoost版本

5.0.1

### 是否延迟初始化FlutterBoost

No

### 解决方案

The issue requests a FlutterBoost 5.0.1 demo compatible with Flutter SDK 3.29.0 on both platforms, but names no files, tests, or reproduction steps. Start by reviewing the repository's existing demo and Flutter compatibility setup; done means a demo builds and runs with Flutter 3.29.0 on both supported platforms.

Written by the indexing model from the issue text.