The admin-login password prompt ran on an empty stack (the picker was popped
when it returned), so session.text pushed a blank base and the prompt — and any
"wrong password" rejection — floated over an erased background.
open_repeater_admin now redraws the node picker as a static backdrop (extracted
admin_picker_rows, shared with the live pick so they can't drift) and keeps it
pushed across _login, with the picked node highlighted. The password box and the
rejection float over the picker, matching the device-picker and trophy-case
dialogs. floating=True stays on the prompt as a belt-and-suspenders fallback.
Also drop the inert floating=True on tx_optimize._resolve_password: that
resolver only runs on the scripted CLI path (PlainUi, no stack), so the flag
never did anything — the menu path logs in inside the pushed sweep screen.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>