Split (Core)
Forks the graph into multiple children, producing sibling indices for branching.
Split Core
The Split Core forks the graph into parallel child branches.
It is the primitive behind branching in trees, shrubs, and tufts.
- Spawns multiple children per step
- Emits
inter_node_id
for sibling indexing - Used inside Grow for multiplicity and forks
Outputs: multiple subgraphs with branch ancestry attributes