Refactor .gitignore to specify checkpoint file types and exclude all but the best model. Update inference.py to use enhanced CAPTCHA generation and adjust dimensions. Increase training epochs in train.py for better model performance. Update training metrics and data generation logic in data.py for improved dataset handling and augmentation. Update config.py for dataset path consistency.

update inference.py

Enhance training process with improved early stopping and metrics tracking. Update README with training results and insights. Modify .gitignore to allow Metrics plots. Add plotting functionality for inference results in plotting.py. Update configuration parameters for CAPTCHA length limits.