Include model and scaler artifacts for Hugging Face deployment

Author: vyash0048-bit

.gitignore

@@ -206,6 +206,8 @@ marimo/_static/
 marimo/_lsp/
 __marimo__/
 
+!artifacts/model_trainer/
+!artifacts/data_transformation/
 artifacts/*
 !artifacts/model_trainer/model.joblib
 !artifacts/data_transformation/scaler.joblib