- maskable-icon.png regenerated: logo at ~66% on the brand background —
inside the maskable safe zone, so Android no longer crops it ('zoomed in').
- index.html: viewport-fit=cover + manifest link without
crossorigin=use-credentials (Firefox Android fails to resolve manifest
icons on credentialed fetches — missing launcher icon).
- custom.css: standalone-mode safe-area padding so app content clears the
system bars; the bands show the theme-correct page background.
Nathan Schneider