Remove makeRuntime + async facade exports from TuiConfig, Installation, and
SessionCompaction. Migrate production callers to AppRuntime.runPromise with
yielded services, and route tests through dedicated mockable hooks where
they previously spied on the facade.
String.length counts code points, not display columns, so CJK
characters and emoji that occupy two terminal cells caused
misaligned cursors, broken mention triggers, and incorrect
history restoration offsets.
Use Bun.stringWidth for now, we need an alternative for this.
Fix#26716Close#26922
Kit Langton