feat: updated the kaizen cli setup and functionality

[sauravpanda]

CLI Refactoring and Configuration Management

• Purpose:
  Refactor the CLI codebase and introduce a more robust configuration management system.
• Key Changes:
  • Separated CLI commands into dedicated modules (config, unit_test, reviewer).
  • Implemented a new configuration management system with support for nested configurations, environment variables, and persistent storage.
  • Added commands for managing language models and Kaizen API keys in the configuration.
  • Improved the unit test generation and execution commands.
• Impact:
  The changes will improve the maintainability and extensibility of the CLI, making it easier to manage configurations and add new features in the future.

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Original Description

[kaizen-bot]

🔍 Code Review Summary

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Overview

• Total Feedbacks: 0 (Critical: 0, Refinements: 0)
• Files Affected: 0
• Code Quality: [█████████████████░░░] 85% (Good)

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