Chat: clicking a thread row now replaces the center pane content with
the thread's full messages (back button to return to thread list).
Removed the right-side thread panel entirely — threads navigate in
place like Slack, not as a side panel overlay.
Office: reduced frame rate to 24fps, skip rendering when canvas has
zero dimensions, schedule next frame AFTER draw (not before) to
prevent runaway frame buildup that caused the white screen crash.
ZacharyZhang-NY
016ae25901