[Testing] pretty print for cli output

Migration from https://github.com/aws/aws-durable-execution-sdk-python-testing/issues/55

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## overview
Add a pretty print output for viewing the results of an execution in a terminal.

## eelated
- https://github.com/aws/aws-durable-execution-sdk-js/blob/development/packages/aws-durable-execution-sdk-js-testing/src/test-runner/local/result-formatter.ts#L75

## acceptance criterua
1. pretty print of execution output available from the cli

首先定位显示执行结果的 Python CLI 入口点，然后将其当前输出与 JavaScript SDK 中位于 packages/aws-durable-execution-sdk-js-testing/src/test-runner/local/result-formatter.ts 的相关 formatter 进行比较。为执行输出添加适合终端的美化打印，并验证 CLI 按验收标准中的描述提供该功能。

由索引模型根据 Issue 内容生成。