Move live stats (tokens, tools, duration) from the header — which scrolls
above the TUI viewport for long transcripts — to a stable Text component
placed after the viewerContainer. Stats are updated in-place via setText()
so the diff algorithm sees changes near the bottom of rendered output,
avoiding the fullRender(true) trigger when firstChanged < viewportTop.
Previously every ~150ms progress update changed the header stats line,
which sat above the viewport for large transcripts. The TUI's safety
check (firstChanged < previousContentViewportTop) forced a full screen
clear and re-render each cycle. In multiplexers (tmux/zellij) this
produced visible repetitive scrolling because scrollback is preserved
across clears.
Patrik Sundberg
bb5f332eca