- Fixed model ID consistency: numeric IDs now remain the same when using
  filters like --nsfw-friendly, --t2v-only, --i2v-only, etc.
  Previously, filtered lists would renumber models making --show-model
  by numeric ID unreliable.

- Added --model-list-batch option for script-friendly output:
  Outputs 'NUMERIC_ID:FULL_MODEL_NAME' format for easy parsing

- Added --output-dir option to specify output directory:
  Sets the directory where output files will be saved

- Fixed syntax error in argparse epilog string that was causing
  'SyntaxError: invalid decimal literal'