Overlay Expression
Generated from src/bubble.js and characters/buddy-bot/ at deploy
Speech bubble reading time and the thinking ellipsis while a
reactive Director turn is in flight. Type a line, Poke to start a turn,
reply while it is thinking. A proactive wake runs the same machine with
the indicator held down — an unasked turn never shows an ellipsis — and
then lands its line anyway, which is the contrast the two buttons draw.
The hold is whatever bubbleDuration returns for that line;
speech and the indicator share one surface, and speech wins.