Fix GUI fallback misfire and untranslated failure-menu case patterns

The cage wrapper treated the installer session exit code as cage
availability, so an installer abort re-ran the English VT flow. A
gui-started marker now separates the two. Dashboard failure-menu
cases for shell/poweroff now match the localized choice strings.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QKxGW1raAWaqeU8WdHsMsp

packages/omarchy-iso-cn.patch

@@ -12,10 +12,10 @@ index db8daa2..5e4ca44 100755
  
  # The live ISO boots linux-t2 (see airootfs/etc/mkinitcpio.d/linux-t2.preset), so
 diff --git a/configs/airootfs/root/.automated_script.sh b/configs/airootfs/root/.automated_script.sh
-index 16904f8..780ff6a 100644
+index 16904f8..f1ec36e 100644
 --- a/configs/airootfs/root/.automated_script.sh
 +++ b/configs/airootfs/root/.automated_script.sh
-@@ -10,7 +10,20 @@
+@@ -10,7 +10,29 @@
  #   - COLUMNS/LINES so gum picks up real terminal size
  set -euo pipefail
  
@@ -28,11 +28,20 @@ index 16904f8..780ff6a 100644
 +  export XDG_RUNTIME_DIR=/run/omarchy-gui
 +  mkdir -p "$XDG_RUNTIME_DIR"
 +  chmod 700 "$XDG_RUNTIME_DIR"
-+  if OMARCHY_CN_GUI=1 OMARCHY_INSTALL_LANG=zh WLR_RENDERER=pixman     cage -- foot -F "$0"; then
-+    exit 0
++  rm -f "$XDG_RUNTIME_DIR/gui-started"
++  gui_status=0
++  OMARCHY_CN_GUI=1 OMARCHY_INSTALL_LANG=zh WLR_RENDERER=pixman \
++    cage -- foot -F "$0" || gui_status=$?
++  if [[ -f $XDG_RUNTIME_DIR/gui-started ]]; then
++    # GUI 已运行：退出码属于安装器，不再回退英文流程
++    exit "$gui_status"
 +  fi
 +  echo "图形安装环境不可用，回退英文控制台 (falling back to the English VT installer)"
 +  unset OMARCHY_INSTALL_LANG XDG_RUNTIME_DIR
++fi
++
++if [[ -n ${OMARCHY_CN_GUI:-} ]]; then
++  touch "$XDG_RUNTIME_DIR/gui-started"
 +fi
  
  export OMARCHY_MIRROR="$(cat /root/omarchy_mirror)"
@@ -578,7 +587,7 @@ index 4cd3db3..24a1bf8 100644
          ;;
      esac
 diff --git a/configs/airootfs/usr/local/bin/omarchy-install-dashboard b/configs/airootfs/usr/local/bin/omarchy-install-dashboard
-index 91e960b..2a615e2 100755
+index 91e960b..54d331d 100755
 --- a/configs/airootfs/usr/local/bin/omarchy-install-dashboard
 +++ b/configs/airootfs/usr/local/bin/omarchy-install-dashboard
 @@ -53,6 +53,44 @@ export GUM_CONFIRM_UNSELECTED_BACKGROUND="${GUM_CONFIRM_UNSELECTED_BACKGROUND:-0
@@ -717,7 +726,7 @@ index 91e960b..2a615e2 100755
  
    render_media_diagnosis "$media_diagnosis"
  
-@@ -730,34 +785,34 @@ failure_menu() {
+@@ -730,40 +785,40 @@ failure_menu() {
      if [[ -n $uploader ]]; then
        choice=$(gum choose \
          --height 6 \
@@ -767,4 +776,12 @@ index 91e960b..2a615e2 100755
 +      "$L_C_REBOOT")
          reboot 2>/dev/null || systemctl reboot 2>/dev/null || true
          ;;
-       "Power off")
+-      "Power off")
++      "$L_C_POWEROFF")
+         poweroff 2>/dev/null || systemctl poweroff 2>/dev/null || true
+         ;;
+-      "Drop to shell"|"")
++      "$L_C_SHELL"|"")
+         return 0
+         ;;
+     esac