Changes in version 0.1.0 (2026-02-20)                  

  - Initial CRAN release.
  - Core functions: ibge_aggregates(), ibge_metadata(), ibge_periods(),
    ibge_localities(), ibge_variables().
  - Pre-flight validation against aggregate metadata for all query
    parameters.
  - In-memory metadata cache with ibge_clear_cache().
  - parse_ibge_value() utility for converting IBGE special value codes.
  - parse_sidra_url() and fetch_sidra_url() for migrating from SIDRA API
    URLs (e.g. from the Query Builder or sidrar package).
  - Support for flat view (view = "flat") response parsing.
  - Four vignettes: getting started, API concepts, IPCA example, and a
    real-world tutorial on tracking state GDP components.