Changes in version 0.0.4 (2026-06-02)                  

  - Added first-class WRDS credential helpers: wrds_get_username(),
    wrds_conninfo(), and wrds_check_credentials().
  - Added Parquet-first public helpers for schema/table listing and WRDS
    SQL exports: db_schema_tables(), wrds_get_tables(),
    db_schema_to_pq(), and wrds_sql_to_pq().
  - Added pq_data_dir() to inspect or resolve the default Parquet
    repository directory.
  - Added rename support to db_to_pq() and wrds_update_pq().
  - Added pkgdown site configuration and workflow-oriented vignettes.
  - Added ADBC diagnostics and clearer SSL-related error messages for
    the optional ADBC PostgreSQL path.