The strip showed for PREPARED and for the first SYNCING after it (or after
RECONNECTING), i.e. until the next /sync returned: ~30 s of long-poll on a
quiet account while the app already worked. A SYNCING means a sync just
succeeded, so the strip now shows only during CATCHUP; failures still show
as Reconnecting / Connection lost.
Fixes#274
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017PCb59uY3UKqDqt7B6hzd5