Changes in version 0.1.0 (2026-01-17)                  

  - Initial CRAN release.
  - Provides diagnostics and visualization tools for latent variable
    models fitted with lavaan or blavaan.

Core functionality

  - augment() — augments fitted models with predicted values, residuals,
    SEs, and CIs (continuous, ordinal, or mixed indicators).
  - prepare() — constructs model-based item curves and latent grids for
    continuous/ordinal indicators.
  - lavPredict_parallel() — robust, parallel wrapper for
    lavaan::lavPredict() with automatic handling of ordinal data.

Item-level diagnostics

  - item_data() — extracts model-based and empirical item-level
    information for plotting or inspection.
  - item_plot() — visualizes empirical vs. model-implied item curves,
    including confidence intervals.

Residual diagnostics

  - resid_cor() — computes residual (co)relations and z-statistics.
  - resid_corrplot() — visualizes residual correlations using corrplot.
  - resid_qq() — draws Q–Q plots of residual correlation z-statistics.

Model summaries and utilities

  - parameter_estimates() — enhanced extraction of standardized
    parameter estimates with robust SEs.
  - model_info() — extracts compact model metadata (grouping, variables,
    parameterization, etc.).
  - hopper_plot() — summarizes fit indices and modification indices
    across multiple models.