train_from_parquet and load_training_data_from_parquet had zero callers — TFT hyperopt uses train_from_bars via DBN data. Also removes unused NormalizationParams struct from this module. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
train_from_parquet and load_training_data_from_parquet had zero callers — TFT hyperopt uses train_from_bars via DBN data. Also removes unused NormalizationParams struct from this module. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>