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* Remove outdated or internal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-pkg-add

@@ -1,6 +1,11 @@
 #!/bin/bash
 
-# Add the named packages to the system if they're missing. Returns false if it couldn't be done.
+# omarchy:summary=Install Arch packages if they are missing
+# omarchy:group=install
+# omarchy:name=package
+# omarchy:args=<packages...>
+# omarchy:examples=omarchy install package jq ripgrep
+# omarchy:requires-sudo=true
 
 if omarchy-pkg-missing "$@"; then
   sudo pacman -S --noconfirm --needed "$@" || exit 1