KetraTermresize
Resizes core and the active connector, then requests a new published frame.
Return
A Pair of (newScrollbackOffset, newHistorySize) that the UI should apply to re-anchor the viewport to the same logical content after reflow.
Parameters
columns
target terminal column width; at least TerminalBuffers.MIN_WIDTH.
rows
target terminal row height.
oldScrollbackOffset
The scrollback offset that was active in the UI before this resize. Pass 0 if the viewport was at the live screen (no scrollback).
See also
for an atomic history baseline including discarded rows.