DemogAnr 0.1.0

• Initial CRAN release.
• Added functions for basic demographic analysis: fertility (dem.fert), mortality (dem.cdr, dem.mmr, dm.chm), and life tables (lifetable, lifetable_nqx).
• Implemented mathematical population projection (math_project), a stochastic simulation-based projection (project_population), and demographic interpolation models (interpolation, karup_king, brass_logit).
• Addressed CRAN reviewer feedback:
  • Formatted description and references in the DESCRIPTION file to match CRAN rules.
  • Suppressed all raw console printing in core demographic functions and implemented custom S3 print methods (print.dem_cdr, print.dem_fert, print.dem_mmr, and print.dem_chm) to align with standard R package behavior.
  • Added academic references to the documentation blocks of all core R files.
  • All invalid links have been removed from the documentation and Description file.
• Methodological corrections prior to release:
  • brass_logit() now uses the correct inverse of the Brass half-logit transform, exp(2Y)/(1 + exp(2Y)), and documents that its input is the cumulative probability of dying q(x) = 1 - l(x).
  • lifetable_nqx() and lifetable() now account for the width of each age interval (1, 4, 5, … years) when computing nqx and person-years lived (nLx); lifetable() gains sex and radix arguments and uses Coale-Demeny separation factors for ages 0 and 1-4.
  • karup_king() defaults now work out of the box (packaged Karup-King coefficient matrices).
  • project_population() now propagates all simulated trajectories through the projection horizon and reports lower quartile, median, mean, and upper quartile per year; net out-migration now reduces growth.
  • dm.chm() neonatal filter now uses age < 1 month.
  • Removed unused dependencies (tidyverse, brms, logger, data.table) and leftover Stan scaffolding.