Add notebooks for model preparation, training, and evaluation; include data and configuration files

- Created 02_prepare_base_model.ipynb for base model preparation using VGG16.
- Created 03_model_trainer.ipynb for training the model with data augmentation options.
- Created 04_model_evaluation.ipynb for evaluating the trained model and saving results.
- Added data.zip containing necessary datasets for training and evaluation.
- Added test.yaml for configuration testing with sample data.

Author: pankaj2k9

README.md

@@ -70,7 +70,7 @@ Data → Training Pipeline → Model Artifacts → Docker Image
 ├── model
 │   └── model.h5                  # Trained CNN model
 │
-├── research                      # Experimental notebooks
+├── notebooks                      # Experimental notebooks
 │   ├── 01_data_ingestion.ipynb
 │   ├── 02_prepare_base_model.ipynb
 │   ├── 03_model_trainer.ipynb