isModelInstalled method
Check if a model is installed and valid
Implementation
@override
Future<bool> isModelInstalled(ModelSpec spec) async {
await _ensureInitialized();
// For web, check if model path is set and loading is completed
final hasPath = _modelPaths.containsKey(spec.name);
final completer = _loadCompleters[spec.name];
final isLoaded = completer?.isCompleted == true;
return hasPath && isLoaded;
}