Score time-of-day per grid point using longitude/15 solar offset instead of hardcoded CST/CDT. Add PWAT as 10th scoring factor. Refine pressure thresholds. Update ML model and training pipeline to use local solar time.
Implements BandConfig (data-driven thresholds for 8 bands) and Scorer module with humidity, time-of-day, TD depression, refractivity, sky cover, season, wind, rain attenuation, and pressure trend scoring. Composite score applies BandConfig weights (sum to 1.0) across all factors, producing 0-100 score per band. 10 GHz uses beneficial humidity/ducting model; 24 GHz+ uses harmful absorption model.
