Coming soon: Add Harness functionality to latest version of CLI

[avi-alpert]

Description

Currently, only the “preview” version of the AgentCore CLI npm package integrates with AgentCore Harness. The Harness functionality needs to be merged into the “latest” version of the package.

Acceptance Criteria

• [] Using the latest version of the AgentCore CLI, I can add a harness to my project

Additional Context

No response