9e4a8323c3
Webapp: v1.5.0 → v1.6.0
Kiosk: v1.3.0 → v1.4.0 (versionCode 4→5)
Scale GW: v2.0.0 → v2.1.0 (versionCode 6→7)
CI: build-scale-gateway.yml now also triggers on develop branch
(was main-only, causing APK builds to not run on feature branches)
CHANGELOG: added [1.6.0] entry covering PackageInstaller OTA fixes,
dashboard skeleton, update banners, cooking mode z-index, XOR token
README: updated 'Recent Updates' section with 1.6.0 highlights