As a User I need the ability to create a test suite so that I can separate my tests in organized manner

Acceptance Criteria
- There should be a user friendly way to define a test suite
- There should be a user friendly way to group scenarios/features under a given test suite
- There should be a way to execute a test suite

Issue 中没有指出任何文件、测试或入口点。首先调查 repository，了解当前如何定义和执行场景与功能；当用户可以定义套件、将场景或功能归入其中，并执行选定的套件时，即视为完成。

由索引模型根据 Issue 内容生成。