The parent-child transforms cause issues with the current node model

- [x] Remove parent-child hierarchy transform tests from Node_Attribute
- [ ] rename node_attribute to node_transform
- [ ] Re-add parent-child hierarchy transforms at a later time, possibly in another model group and/or with a new model

Start by locating the Node_Attribute model and the parent-child hierarchy transform tests mentioned in the checklist. Rename node_attribute to node_transform throughout the affected assets and references, then run the repository's validation tests to confirm the current node model no longer includes those hierarchy transforms.

Written by the indexing model from the issue text.