Replace ArgumentParser with Spectre.Console.Cli package#4610

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Copilot wants to merge 9 commits intomainfrom

copilot/fix-bc2ee707-4523-47a0-ba1a-c6378b8ed425

Commits on Jul 3, 2025

Initial plan
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Replace ArgumentParser with SpectreArgumentParser using Spectre.Console.Cli package - basic implementation

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arturcic
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Complete SpectreArgumentParser implementation with full backward compatibility - all tests passing

Copilot
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arturcic
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Replace ArgumentParser delegation with full Spectre.Console.Cli implementation using POSIX compliant syntax

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Enhance SpectreArgumentParser with comprehensive CLI argument support based on documentation

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Remove legacy forward slash syntax support from SpectreArgumentParser and update tests to use POSIX syntax

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Use -v for verbosity instead of show variable to follow standard CLI conventions

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arturcic
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Update Spectre.Console.Cli to latest version and split classes into separate files

Copilot
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arturcic
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Fix build errors: remove trailing whitespace, suppress obsolete warnings, and fix null reference issues

Copilot
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arturcic
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