createDir function
Create a directory at the specified path.
This function creates a new directory, optionally creating parent directories
if they don't exist when recursive is true.
Parameters:
- path: The directory path to create
- recursive: If true, creates parent directories as needed
Returns the created directory path.
Throws:
- Exception if the directory already exists
- Exception if parent directories don't exist and recursiveis false
- Exception if there are insufficient permissions
Example:
createDir('/path/to/new/directory', recursive: true);
final createdPath = createDir('/path/to/single/dir', recursive: false);
Implementation
String createDir(String path, {bool recursive = true}) {
  // Validate input
  if (path.isEmpty) {
    StatusHelper.failed('Directory path cannot be empty.');
  }
  final absolutePath = truepath(path);
  try {
    if (!exists(absolutePath)) {
      Directory(absolutePath).createSync(recursive: recursive);
    }
  } on FileSystemException catch (e) {
    StatusHelper.failed(
        'Unable to create directory $absolutePath: ${e.message}');
  } catch (e) {
    StatusHelper.failed(
        'An unexpected error occurred creating directory $absolutePath: $e');
  }
  return absolutePath;
}