✨ EditorConfig Support

### Description

EditorConfig is a useful file format for keeping code style the same across IDE’s. It has built-in support in numerous editors and is a fairly simple spec.

https://editorconfig.org/

All supported config options: https://github.com/editorconfig/editorconfig/wiki/EditorConfig-Properties

### Alternatives Considered

_No response_

### Additional Context

This would require workspace settings overrides, since the config would be workspace-specific.

### Screenshots

_No response_

先阅读链接的 EditorConfig 规范和属性列表，然后检查 CodeEdit 如何处理 workspace 设置覆盖。在实现之前，明确支持的属性和特定于 workspace 的行为；完成的标准是，已约定的 EditorConfig 设置能够在编辑器中一致地应用。

由索引模型根据 Issue 内容生成。