Flatten CLI Args

[fpetrini15]

Primary Goal: Flatten the command structure of the CLI

Secondary Goal: Update the CLI tests to use the updated command structure.

CLI test helper functions were renamed to prevent confusion with legacy commands, e.g., repo_clear --> _clear

Note: The parser was restructured into groups headed by a comment block for easier readability:

# ================================================
# ARG GROUPS
# ================================================
def add_verbose_args(subcommands):
...
# ================================================
# REPO
# ================================================
def parse_args_repo(parser):
...

It was useful when I was developing but we can discuss other avenues for organization.

This is the new output of triton -h:

[krishung5]

I know it's too late but lgtm 🚀

[rmccorm4]

Never too late for a 🚀