Previously a mid-session SSE drop (server restart / network blip)
left the stream closed until the next sign-in — cross-device
reactivity (likes, playlist updates, request status, quarantine
changes) silently died until app relaunch.
Now onClosed / onFailure schedule a reconnect with exponential
backoff (1s → 2s → … → 30s cap), reset to 1s on a successful
onOpen. Reconnect only fires while signed in; sign-out's
disconnect() cancels any pending retry. State swaps
(connect/disconnect/scheduleReconnect) are @Synchronized since the
OkHttp listener thread and the auth-cookie collector both touch
currentSource + backoff.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
bvandeusen
ef85f5fd0b