`opusify list` Command

[Josephat-S]

What to build

Implement the opusify list command that displays all available templates, their variants, and supported architectures in a formatted table.

Files to modify/create

• index.js (or create src/commands/list.js)

Specs

• Output a formatted table showing template name, variants, and architectures.
• Support opusify list --template portfolio to show only one template's details.

Acceptance criteria

• opusify list prints a table of all 5 templates with their variants.
• opusify list --template portfolio shows only portfolio variants and architectures.
• Output is colorized with chalk.
• Shows which architectures are available vs coming soon.

Dependencies

• CLI Flag Support (Non-Interactive Mode) #39)