On Android the keyboard-open footer (executor status bar) stayed visible
and the off-screen mobile nav bar's reserved padding rendered as an empty
band between the composer and the keyboard. computeMobileBarKeyboardFlags
no longer iOS-gates footerHidden, so both platforms now hide the footer
and drop the reserved footer+nav padding-bottom when the soft keyboard is
up, letting the composer sit flush above the keyboard. footerKeyboardOpen
(the iOS bottom:0 collapse class) stays iOS-only.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
e48c75ccc5