epic: `cortex` command to start server has useful helper text

[dan-menlo]

Goal

• cortex command starts server
• cortex command should show server running at certain port
• cortex command should dump errors if occur (e.g. port conflict)
• cortex command should show common commands (and tell user to run -h if they want to see full list)
• cortex command should show some ASCII art, i.e. "Cortex"

Resources

• Cortex.cpp: CLI #1109 (comment)

Oh-my-zsh

Docker's example

[dan-menlo]

@vansangpfiev I am tagging this to you in Sprint 20; however I see this as a mostly cosmetic change and you should focus on core functionality before working on this.

[dan-menlo]

@vansangpfiev I believe this epic is implemented already, do you mind linking the PRs that close it (or the issues that superseded it) and then proceed to close?

e.g.:

• feat: cortex start command #1235
• feat: cortex -h should have commands categorized #1231

[gabrielle-ong]

Marking as complete, thanks @vansangpfiev