chore: improve logger config and error codes

[behnazh-w]

No description provided.

[tromai]

There is a warning on the Python documentation on the exit codes - https://docs.python.org/3/library/os.html#os._exit
The documentation says:

Note

Some of these may not be available on all Unix platforms, since there is some variation. These constants are defined where they are defined by the underlying platform.

Does it mean that we need to first check whether those constants are available before we use it? Reference - https://stackoverflow.com/a/57464811

[behnazh-w]

Does it mean that we need to first check whether those constants are available before we use it?

Not really. We are expecting Macaron to work on Linux and MacOS. I'll adjust the classifier to reflect that.

[behnazh-w]

I'll adjust the classifier to reflect that.

See commit 27cbd73.

[tromai]

By dependencies, do you mean the Python third-party dependencies that we have for Macaron?

[behnazh-w]

By dependencies, do you mean the Python third-party dependencies that we have for Macaron?

Yes, for example SQLAlchemy.