Update all version strings (header, SCRIPT_VERSION, JS VERSION constant)
and rename ubuntu-based-kiosk-v1.0.2.sh → ubuntu-based-kiosk-v1.0.3.sh.
Update README with v1.0.3 change log and archive v1.0.2 as previous.
https://claude.ai/code/session_01EyjEQLWbTXcZgbMDarf7NU