Card: recipe for building model A/B training mixes as in the paper; link metrics Space

Card: describe 4,000-row subsampling and feature set used in the paper; link PyPI package

Rename dataset title to 'Lending Club Model Drift Dataset with Synthetic Outliers'

Add data and dataset card for v1.0 (NeurIPS 2025 GenAI in Finance, arXiv:2510.09294)

initial commit