Add omarchy CLI (#5477)

* Add omarchy CLI

* Remove outdated or internal

* Add bash completions for command

* Add omarchy command documentation

* Add missing docs

* Correct to what's now right

* Fix tests

---------

Co-authored-by: David Heinemeier Hansson <david@hey.com>

bin/omarchy-channel-set

@@ -1,17 +1,8 @@
 #!/bin/bash
 
-# Set the Omarchy channel, which dictates what git branch and package repository is used.
-#
-# Stable uses the master branch, which only sees updates on official releases, and
-# the stable package repository, which typically lags the edge by a month to ensure
-# better compatibility.
-#
-# Edge tracks the latest package repository, but still relies on the master branch,
-# so new packages which require config changes may cause conflicts or errors.
-#
-# Dev tracks the active development dev branch, which may include partial or broken updates,
-# as well as the latest package repository. This should only be used by Omarchy developers
-# and people with a lot of experience managing Linux systems.
+# omarchy:summary=Set the Omarchy channel, which dictates what git branch and package repository is used.
+# omarchy:args=<stable|rc|edge|dev>
+# omarchy:requires-sudo=true
 
 if (($# == 0)); then
   echo "Usage: omarchy-channel-set [stable|rc|edge|dev]"