On long sidebars over the virtualization threshold, showSessionListSkeleton()
cleared the DOM but left the data-session-virtual-* window state + the queued
scroll RAF active. A pending _scheduleSessionVirtualizedRender() could then
repaint the PREVIOUS profile's cached rows over the skeleton before the new
/api/sessions response landed (SILENT regression Codex caught).
Fix:
- showSessionListSkeleton(): cancelAnimationFrame(_sessionVirtualScrollRaf) and
delete the data-session-virtual-{total,start,end,filter,activeAnchor} markers
so no scroll-driven render targets the skeleton; the real render rebuilds them.
- _scheduleSessionVirtualizedRender(): early-return while
_sessionListSkeletonActive is true.
Tests: +2 static assertions; driver mock gains dataset + RAF stubs. 24 pass.
7e731ab22b
