Salvage of PR #102346 by teamster22, rebased onto current main.
The sidebar fetch splits its rows into three mutually exclusive
source-scoped slices ($sessions recents / $cronSessions /
$messagingSessions), and recents excludes every messaging and cron
source. All three tab-title resolution sites (tileStoredRow,
syncWorkspaceTitle, workspaceDragPayload) searched recents only, so a
telegram/matrix/discord-origin session tab read "New session" forever
even while its sidebar row showed the real title — a partition miss,
not a timing miss, so no activity could ever fix it.
Route the three resolvers through ownerLookupSessionRows() (the
three-slice concat added for this bug class in #95633, which preserves
$sessions' array identity when the other slices are empty) and add
$cronSessions / $messagingSessions to watchSessionTiles' `also` array
and syncWorkspaceTitle's listeners so the late-arriving slices re-sync
the label.
Closes#95096.
5c3172005d