decisionfacets 0.1.0

• Initial release.
• Many-facet Rasch rating scale model fitting via ‘TAM’ (marginal ML) or built-in JMLE (df_fit()).
• Explicit decision rules: raw total, fair average, measure (df_cut(), df_classify()).
• Counterfactual pass probabilities under observed, average and random rater panels, with rater-dependence flags (df_counterfactual()).
• Attribution of expected misclassification to measurement error and rater assignment (df_attribute()).
• Known-truth simulation (df_simulate()).