Benchmarking Module

[anson-zhou]

Create a benchmarking module to evaluate DAG representations and downstream applications. Requirements:

• Structural integrity checks (acyclicity, edge ordering, schema conformance).
• Annotation consistency evaluations (F1, Cohen's kappa).
• Retrieval accuracy benchmarking (Precision@k, MRR).
• Predictive modeling evaluations comparing DAG-based datasets against linear narratives.'

Anything we can benchmark against?