Include the numbered installer batch files in the Windows 11 seed ISO

The launcher also rebuilds the seed ISO when one of them changes.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

seediso/windows11/build-seed.sh

@@ -7,6 +7,10 @@ seed_files=(
   "$script_dir/Autounattend.xml"
   "$script_dir/Configure-Windows.ps1"
 )
+# Numbered installer scripts (10-Install-Git.bat, 20-..., in install order).
+shopt -s nullglob
+seed_files+=("$script_dir"/[0-9][0-9]-*.bat)
+shopt -u nullglob
 
 mkdir -p "$(dirname -- "$output")"
 if command -v xorriso >/dev/null 2>&1; then