v0.7.0

Added

• Opt-in GHCN station-search diagnostics with bounded response details, and
  independent live checks for geographic discovery and explicit-station downloads.
• noaa:gsom monthly station CSVs through NCEI, with geographic discovery,
  complete-month selection, reproducible restoration, and a pandas analysis example.
• Terminal progress for CLI fetch and pull, showing known asset sizes, HTTP download
  bytes and retry attempts, and validated cache hits. Disable with --no-progress;
  redirected output retains its existing format.