[WIP] Implement SIM-CLI

[Copilot]

Planning and implementing SIM-CLI tool for managing iOS simulators and Android emulators.

• Analyze requirements and plan implementation approach
• Choose Node.js as the implementation language for cross-platform compatibility
• Set up Node.js project structure with package.json
• Install CLI framework dependencies (commander.js)
• Create main CLI entry point
• Implement iOS simulator management (list, start, stop, restart, shutdown)
• Implement Android emulator management (list, start, stop, restart, shutdown)
• Add screenshot functionality for both platforms
• Add screen recording functionality for both platforms
• Add proper error handling and user-friendly output
• Make CLI globally executable
• Test all functionality manually
• Update README with usage instructions

The implementation will use xcrun simctl for iOS simulators and Android SDK tools for emulators, providing a unified CLI interface.

Fixes #1.

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