Replace write_dataset_json_with_metadata with save_dataset_json

## Background

* Programs from Pilot 5 are using an older function that has been replaced (see Pilot5 ADaM programs)

<img width="922" height="154" alt="Image" src="https://github.com/user-attachments/assets/9482b970-569c-488d-ad31-303fb93e0d3c" />

## Definition of Done

- [ ] Replace write_dataset_json_with_metadata with save_dataset_json