Add AI testing CLI parameters and integration

[devload]

Description

Add CLI parameters for AI-based testing and integrate AIStrategy into the main CLI.

Requirements

• Add --strategy ai option
• Add --ai-goal parameter (required for AI)
• Add --ai-workspace parameter (default: ./ai_workspace)
• Add --ai-credentials parameter (JSON format)
• Add --ai-scenario parameter (login, checkout, settings)
• Validate AI parameters and show helpful error messages

Files

• smartmonkey/cli/main.py

Acceptance Criteria

• AI strategy option added to CLI
• All AI parameters implemented
• Parameter validation with clear error messages
• Credentials JSON parsing
• Example usage in help text