fix: use Debian 13.5.0 stable ISO to fix kernel module mismatch; gitignore ISOs

.gitignore

@@ -3,3 +3,4 @@ __pycache__/
 *.pyo
 .env
 credentials.md
+iso-output/*.iso

VERSION

@@ -1 +1 @@
-0.2.1
+0.2.2

build-iso.sh

@@ -21,7 +21,7 @@ OUTPUT_DIR="$REPO_DIR/iso-output"
 WORK_DIR="$(mktemp -d /tmp/kiosk-iso-XXXX)"
 trap 'rm -rf "$WORK_DIR"' EXIT
 
-DEBIAN_ISO_URL="https://cdimage.debian.org/cdimage/daily-builds/daily/arch-latest/amd64/iso-cd/debian-testing-amd64-netinst.iso"
+DEBIAN_ISO_URL="https://cdimage.debian.org/debian-cd/current/amd64/iso-cd/debian-13.5.0-amd64-netinst.iso"
 ISO_CACHE="$OUTPUT_DIR/debian-netinst.iso"
 OUTPUT_ISO="$OUTPUT_DIR/seniornet-kiosk.iso"
 
@@ -41,7 +41,7 @@ fi
 if [ -f "$ISO_CACHE" ]; then
   echo "==> Using cached Debian ISO: $ISO_CACHE"
 else
-  echo "==> Downloading Debian Trixie netinstall (~700 MB)..."
+  echo "==> Downloading Debian 13 Trixie stable netinstall (~700 MB)..."
   curl -L --progress-bar "$DEBIAN_ISO_URL" -o "$ISO_CACHE"
 fi