Changelog

Added interval censoring support to likelihood_name() via ob_col_upper parameter
Input validation in likelihood_name() constructor: checks that distribution functions exist
Parameter count validation in prepare_args_list() with clear error messages
Warning on unrecognized censoring values (e.g., typos like “righ”)
Auto-switch from Nelder-Mead to BFGS for 1-dimensional optimization
New Fisherian inference functions: support(), relative_likelihood(), likelihood_interval(), profile_loglik(), evidence()
New exponential_lifetime model with closed-form MLE and right-censoring support
New fisher_mle and fisher_boot result objects with full S3 method suite

Fixed rowSums error in likelihood_contr_model score for single-parameter models
Fixed print.likelihood_model crash when ob_col is NULL (e.g., for contr models)

Expanded likelihood-name-model vignette: left-censoring, interval censoring, mixed types, Fisherian inference, multiple distributions
Expanded likelihood-contributions vignette: Case 2 inference, single-parameter example, best practices
New getting-started vignette with comprehensive introduction
New exponential-lifetime vignette

Initial public release with likelihood_name(), likelihood_contr_model, and weibull_uncensored

likelihood.model 0.9.1