dyadMLM 0.1.0

• Initial release.
• Cleaned up the pre-release public API with these direct migration mappings: group to dyad, lag_predictors to lag1_predictors, model_type to model_types, temporal_predictor_decomposition to temporal_decomposition, "time_2l" to "2l", include_compositions to keep_compositions, compare_dyad_models() to compare_nested_glmmTMB_models(), exchangeable_rescov() to recover_exchangeable_covariance(), pairs to block_pairings, pairing fields shared and difference to shared_block and difference_block, and print argument what to representation.
• Renamed generated exchangeable-member contrasts from .dy_diff_{composition}_arbitrary to .dy_member_contrast_{composition}_arbitrary. Covariance recovery continues to recognize legacy contrast names in previously fitted models.
• Renamed the package from interdep to dyadMLM; package-generated columns now use the .dy_ prefix instead of .i_.
• Added validation and preparation of cross-sectional and intensive longitudinal dyadic data with distinguishable, exchangeable, and mixed dyad compositions.
• Added composition filtering, exchangeability overrides, and pooling.
• Exchangeable-dyad difference columns now use an _arbitrary suffix.
• Added temporal predictor decomposition and model-ready columns for APIM, DIM, and DSM parameterizations.
• Added compare_nested_glmmTMB_models() for compatible nested glmmTMB models and recover_exchangeable_covariance() for back-transforming shared/difference random-effect covariance structures.
• Added example datasets, getting-started and model-specific vignettes, and a concise print method for prepared data.