- N98: logoutClient and handleLogout now call removeFallbackSession() (removes
only the 4 session credential keys) instead of window.localStorage.clear(),
so settings, unsent drafts, PiP position, and status are preserved across a
normal logout. localStorage.clear() stays reserved for clearLoginData() (the
explicit factory-reset path).
- N99: the useSyncState callback now handles ERROR/STOPPED. A sync failure
before the first PREPARED (offline at startup, homeserver unreachable) shows
a dedicated error splash with a Retry button (startMatrix) instead of an
endless "Heating up" spinner alongside a contradictory "Connection Lost!"
banner. Guarded by a hasPreparedRef so post-PREPARED transient errors still
go through <SyncStatus>; PREPARED self-heals the splash on recovery, and the
redundant banner is suppressed while the splash is shown.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>