remove outdated commands: preflight, utils, self legacy group

preflight referenced non-existent work-order.md (replaced by agent-tasks.md).
utils only contained albany-cleanup (Albany supercomputer no longer used).
self was a legacy backward-compat group — update/uninstall are already top-level.

bin/cli.py

@@ -4,7 +4,7 @@ from pathlib import Path
 
 import click
 
-from bin.commands import pdf, image, latex, video, bib, utils
+from bin.commands import pdf, image, latex, video, bib
 from bin.commands.convert import convert_cmd
 from bin.commands.env import env_cmd
 from bin.commands.templates import templates_cmd
@@ -13,9 +13,7 @@ from bin.commands.git import git_cmd
 from bin.commands.server import server_cmd
 from bin.commands.webpage import webpage_cmd
 from bin.commands.mail import mail
-from bin.commands.preflight import preflight_cmd
-from bin.commands.self_mgmt import update_cmd, uninstall_cmd, self_cmd
-from bin.utils import handle_errors
+from bin.commands.self_mgmt import update_cmd, uninstall_cmd
 
 
 @click.group()
@@ -32,7 +30,6 @@ cli.add_command(image.image)
 cli.add_command(latex.latex)
 cli.add_command(video.video)
 cli.add_command(bib.bib)
-cli.add_command(utils.utils)
 cli.add_command(env_cmd)
 cli.add_command(templates_cmd)
 cli.add_command(ssh_cmd)
@@ -40,10 +37,8 @@ cli.add_command(git_cmd)
 cli.add_command(server_cmd)
 cli.add_command(webpage_cmd)
 cli.add_command(mail)
-cli.add_command(preflight_cmd)
 cli.add_command(update_cmd)
 cli.add_command(uninstall_cmd)
-cli.add_command(self_cmd)
 
 
 def main():