fix(tui): make busy status-bar reservation /indicator-style aware

The left-content reservation used a flat constant for the busy face,
but its width varies by /indicator style: kaomoji is a wide glyph plus
a rotating verb, while unicode is a bare 1-col braille spinner with no
verb. Reserve the real width via busyIndicatorWidth(style, hasDuration)
so the model stays on-screen across styles without over-reserving the
unbounded elapsed-time tail.

ui-tui/src/components/appLayout.tsx

@@ -358,6 +358,7 @@ const StatusRulePane = memo(function StatusRulePane({
         busy={ui.busy}
         cols={composer.cols}
         cwdLabel={status.cwdLabel}
+        indicatorStyle={ui.indicatorStyle}
         liveSessionCount={ui.liveSessionCount}
         model={ui.info?.model ?? ''}
         modelFast={ui.info?.fast || ui.info?.service_tier === 'priority'}