getModelDisplayName function
Get display name for a model ID.
Implementation
String getModelDisplayName(String modelId) {
final config = resolveModel(modelId);
if (config != null) return config.displayName;
// Generate display name from ID
return modelId
.replaceAll('claude-', '')
.replaceAll('-', ' ')
.split(' ')
.map((w) => w.isEmpty ? w : '${w[0].toUpperCase()}${w.substring(1)}')
.join(' ');
}