wid 0.0.3

Breaking changes

• Renamed the observation-level and country-series quality fields to data_quality and avg_quality, respectively.
• Renamed the score_filter argument to quality_filter. The former name is not retained as an alias. Named filters accept only data_quality and avg_quality.

Improvements

• Every standard download_wid() result now includes data_quality.
• Metadata results include both data_quality and avg_quality; filtering on avg_quality without requesting full metadata returns the standard schema plus avg_quality.
• Empty API and metadata responses preserve the documented output schemas, and unavailable quality values are represented by NA.
• Updated tests, help, and the PDF demonstration for the new quality fields.