Add OS Support for os400/ ibm i

### Describe the feature or problem you'd like to solve

Add os Support for os400/ ibm i in ibm i pase enviroment

### Proposed solution

Add mutch needed agentic ai capabilities to ibmi pase enviroment currently only ibm has ai support for ibm i.

nodejs24 is avaidable on ibmi pase can it can install copilot for now it crashes with clipboard and spawning interactive shell but that should be fixable

### Example prompts or workflows

_No response_

### Additional context

_No response_

该 issue 未指定文件、测试或入口点。首先调查在使用 Node.js 24 的 IBM i PASE 环境中安装和复现 Copilot CLI，重点关注所报告的剪贴板和交互式 shell 崩溃问题。完成的标准是记录 OS 支持并解决这些故障，但该 issue 未定义验收测试。

由索引模型根据 Issue 内容生成。