initialize method
Initialize with a client reference that handles all inbox API calls.
Implementation
Future<void> initialize({required InboxApiClient client}) async {
_client = client;
if (_initialized) {
// Already registered as an observer — skip re-registration to avoid
// didChangeAppLifecycleState firing multiple times per lifecycle event.
debugPrint('InboxService already initialized, updating client only');
return;
}
_initialized = true;
// Register lifecycle observer to refresh when app returns to foreground
WidgetsBinding.instance.addObserver(this);
// Restore cached state from storage
await _restoreCachedState();
debugPrint('InboxService initialized');
}