- scheduler.cancel() now resolves a pending flush() waiter, preventing
waitUntilRenderFlush() from hanging when the app unmounts mid-flush
- BSU/ESU now wrap the actual stream writes instead of being embedded in
the frame string, so synchronization survives log-update's incremental
line diffing (matches Ink ink.tsx:1059-1097). Normal branch guarded by
willRender() to avoid empty synchronized-update pairs on unchanged frames
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Yunfei He
1eb30703f9