Extract cidata loading into a standalone omarchy-cidata-load command

The loader now settles udev before probing, so a fast boot cannot miss
the drive and silently drop a headless install into the wizard. All the
files come over in a single cp, and a failed copy removes anything it
already copied and falls back to the wizard: the wizard cleans up only
what it writes itself, so a half-copied ssh.json would otherwise leak
into the interactive install that follows. The command takes an optional
path prefix so tests can run it against a sandbox instead of the live
system.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

configs/profiledef.sh

@@ -36,6 +36,7 @@ file_permissions=(
   ["/root/.gnupg"]="0:0:700"
   ["/root/configurator"]="0:0:755"
   ["/usr/local/bin/choose-mirror"]="0:0:755"
+  ["/usr/local/bin/omarchy-cidata-load"]="0:0:755"
   ["/usr/local/bin/omarchy-iso-cleanup-disk"]="0:0:755"
   ["/usr/local/bin/omarchy-install-dashboard"]="0:0:755"
   ["/usr/local/bin/omarchy-iso-install"]="0:0:755"