Recognize the omarchy-dev package in omarchy-version

The edge channel installs omarchy-dev, but omarchy-version only queried
omarchy, so it exited 1 there. omarchy-snapshot runs under set -e, so the
failed lookup aborted the whole update over a snapshot label.

It only worked at all because omarchy-dev declares provides=(omarchy) from
the installer repo. Builds without it fail, so check both packages here
instead of relying on a declaration from another tree.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

bin/omarchy-snapshot

@@ -19,7 +19,8 @@ fi
 
 case "$COMMAND" in
 create)
-  DESC="$(omarchy-version)"
+  # The description is just a label, so never let it abort the snapshot.
+  DESC="$(omarchy-version 2>/dev/null || echo unknown)"
 
   echo -e "\e[32mCreate system snapshot\e[0m"