fix: preseed keyboard config, enable kiosk by default

- Preseed keyboard-configuration and console-setup debconf values
  to prevent console-setup.service failure on boot
- Enable archipelago-kiosk.service by default on fresh installs
  so the system boots into the web UI display, not a login prompt

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

image-recipe/build-auto-installer-iso.sh

@@ -202,6 +202,12 @@ FROM debian:bookworm
 
 ENV DEBIAN_FRONTEND=noninteractive
 
+# Preseed keyboard/console config to prevent console-setup.service failure
+RUN echo "keyboard-configuration keyboard-configuration/layoutcode string us" | debconf-set-selections && \
+    echo "keyboard-configuration keyboard-configuration/model select Generic 105-key PC" | debconf-set-selections && \
+    echo "console-setup console-setup/charmap47 select UTF-8" | debconf-set-selections && \
+    echo "console-setup console-setup/codeset47 select Guess optimal character set" | debconf-set-selections
+
 # Enable non-free-firmware repo — replace DEB822 sources with traditional format
 # (DEB822 sed was silently failing, so just overwrite with known-good sources.list)
 RUN echo "deb http://deb.debian.org/debian bookworm main non-free-firmware" > /etc/apt/sources.list && \
@@ -1845,6 +1851,7 @@ chroot /mnt/target systemctl enable nginx.service 2>/dev/null || true
 chroot /mnt/target systemctl enable archipelago-load-images.service 2>/dev/null || true
 chroot /mnt/target systemctl enable archipelago-setup-tor.service 2>/dev/null || true
 chroot /mnt/target systemctl enable archipelago-first-boot-containers.service 2>/dev/null || true
+chroot /mnt/target systemctl enable archipelago-kiosk.service 2>/dev/null || true
 
 # Cleanup
 sync