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Logging to the Console

We're going to start with console logging, for a couple of reasons.

Linko is already logging to the console!
In most cases, even when using other logging targets, most applications log to the console during development.

Adding Color

Text colors get in the way when logs are ingested into a management system, but for local development and debugging they can be a great addition. Colors help highlight log levels and key information.

Assignment

Upgrade the console logger to a development-friendly handler.

Add the github.com/lmittmann/tint and github.com/mattn/go-isatty packages to your module.
When initializing your stderr (text) logger, use tint.NewTextHandler instead of slog.NewTextHandler to add colors.
Set the NoColor option on tint.NewTextHandler to true if you're not in a tty environment. Use both isatty.IsCygwinTerminal and isatty.IsTerminal, and enable color if either returns true.
Verify that running the app in a terminal produces colorized output, and that redirecting stderr to a file (e.g. go run . 2>out.log) produces output without color escape codes.

With the server running, run and submit the CLI tests from the root of the Linko repo.