Unify ISO install orchestration

Drive installs through the common ISO pipeline, carry install intent in configurator JSON, and finalize Limine boot setup from the ISO.

configs/airootfs/root/.automated_script.sh

@@ -19,7 +19,6 @@ export OMARCHY_INSTALL_LOG_FILE=/var/log/omarchy-install.log
 if [[ -f /usr/share/omarchy-iso/install-debug ]]; then
   export OMARCHY_INSTALL_DEBUG=1
 fi
-source "$OMARCHY_INSTALL/helpers/all.sh"
 
 # Tokyo Night palette so the live VT matches the installed look.
 set_tokyo_night_colors() {
@@ -46,7 +45,7 @@ export FORCE_COLOR=1
 if [[ ${OMARCHY_INSTALL_DEBUG:-} == "1" ]]; then
   echo "=== Omarchy ISO debug build ==="
   [[ -f /usr/share/omarchy-iso/build-info ]] && cat /usr/share/omarchy-iso/build-info
-  pacman -Q omarchy-installer omarchy-settings omarchy-keyring 2>/dev/null || true
+  pacman -Q omarchy-settings omarchy-keyring 2>/dev/null || true
   echo "================================"
 fi