This pull request enhances the CLI by introducing a new list command to display available templates, their variants, supported architectures, and design systems in a user-friendly format. It also adds a detailed architecture availability map to clarify which templates support which architectures.

New CLI features:

• Added a list command to the CLI, allowing users to view all available templates, their variants, supported architectures, sidebar support, and design systems. The command supports an optional --template flag for focused details.
• Implemented a comprehensive ARCHITECTURES map that defines each architecture, its label, and which templates support it, enabling clear presentation of architecture availability in the CLI output.

User experience improvements:

• The list command provides color-coded, organized output for templates, variants, architectures (including "coming soon" status), and sidebar support, making it easier for users to understand their options.
• Added a section at the end of the list output to display available design systems, improving discoverability.… portfolio, opusify --template badname

Closes #40