Check Metadata Typos

Check metadata files for spelling typos using comprehensive spell checking.

Scope Options

Ask the user which scope they want to check:

1. Current step only - Ask the user to specify the step path (e.g., etl/steps/data/garden/energy/2025-06-27/electricity_mix)
2. All ETL metadata - Check all active .meta.yml files in etl/steps/data/{garden,meadow,grapher}/ (automatically excludes ~3,570 archived steps)
3. Snapshot metadata - Check all snapshot .dvc files in snapshots/ (~7,915 files)
4. All metadata - Check both ETL steps and snapshot metadata files

Note: Archived steps and snapshots (defined in dag/archive/*.yml) are automatically excluded from checking as they are no longer actively maintained.

Implementation Strategy