feat: implement typed errors on refactor branch.

[Hweinstock]

Problem

We currently throw untyped errors in the refactor. This makes it difficult to classify errors for telemetry in the future, and also leads to brittle logic to determine the source of errors based on message.

Definition of Done

create an error classification system that makes it easy to:

• determine the category of the error (ex. credentials expired, missing file, etc.).
• determine the "source" of the error (is it the user, is it the CLI internally, is it a service endpoint?).
• extend with new categories of errors.