feat(cli): add show <command> subcommand with mock data

[mt798jx]

• Implemented show <command> subcommand to display description, usage, example, and notes
• Added mock data for ls, grep, cat, mkdir
• Improved output formatting with colors and sections
• Added tests for valid and invalid commands in test_cli.py

Closes #331

[bobbyiliev]

I think that this looks great! If you could just rebase from main we should be able to get it merged straight away!

[mt798jx]

it is done

[mt798jx]

u can approve it

[mt798jx]

hey can u please close this PR and merge it? always they add new changes and I need always to rebase it

[bobbyiliev]

The lint seems to be failing: https://github.com/bobbyiliev/101-linux-commands/actions/runs/18189142243/job/51807286812?pr=368

Make sure to run it locally first and once it passes, we can merge it!

Also there are 14 commits here, make sure to rebase.

[mt798jx]

Thanks for the feedback! 🙌
I’ve rebased the branch so there’s now just a single clean commit. I also ran the lint locally with: black --check cli/
and it passed successfully.
Additionally, I verified with pytest -v cli/test_cli.py and all tests passed ✅.

This should be good to go now 🚀.

[bobbyiliev]

Looks great! Really well done here @mt798jx! 👏

Thank you for the great contribution.