bregr 1.1.0

• Improved factor handling and warnings in polar plot and risk network functions.
• Added br_show_residuals() to show residuals vs fitted plot for regression models.
• Updated br_set_x() and br_set_x2() to properly handle different input
  types, including valid column names (in R), invalid column names, and
  model formula terms.
• Supported error handling when model construction failed.
• Added br_get_model_names() and br_rename_models() to get and set model names.
• Soft-deprecated run_parallel in br_run().
• Soft-deprecated br_get_model() by merging it with br_get_models().
• Introduced global options "bregr.save_model" and "bregr.path", configurable via options().
• Enabled cross-platform parallel computation.
• Addressed lifecycle deprecation warnings in functions from ggplot2.
• Set the default exponentiate option appropriately in br_run().
• Expanded br_avail_methods_use_exp() to include c("poisson", "quasipoisson").
• Added a log_first option to br_show_forest().
• Enhanced compatibility with multiple models from broom.helpers.
• Implemented the use of : for interaction term combinations throughout the package.
• Created several new vignettes to introduce the capabilities of bregr.
• Fixed a bug where dropping multiple columns failed in br_show_forest().
• Resolved an issue where br_get_model() couldn't properly process multiple string inputs for the idx parameter.