First CRAN submission.
Replaced fragile regex-based Stan model parser with a robust token-based
parser. Supports modern Stan syntax including the array[] declaration
style, new constrained types (sum_to_zero_vector, etc.), and target +=
statements with _lupdf/_lupmf suffixes.
Expanded test suite from 108 to 197 tests, covering parsing, log probability calculations, specification creation, weight computation, and summary functions.
Add support for cmdstanr objects by passing a list containing the fit and the model object.
Fix bug in parsing code that caused an error with some target += model statements.
Improved documentation and additional references.
Fix bug in extract_samp_stmts() which prevented brmsfit objects from being used directly.
Initial release.
Basic workflow implemented: make_spec(), adjust_weights(), and summarize()/spec_plot().