fix(propagation): 7 pipeline bugs + validation harnesses + model improvements
Phase A — 7 pipeline bugs:
- retain_scores_window: fix timeline self-deletion (NOTIFY payload run_time|valid_time)
- Rust/Elixir weight divergence: Rust loads band_weights.json at startup
- Aurora boost ported to Rust (Kp query + per-cell boost for bands <= 432 MHz)
- Commercial-link boost applied in Rust per-cell scoring
- f00 native gradient preferred over pressure-level gradient
- HRDPS files: greedy regex fixed, now visible to timeline/prune/retain
- GEFS/HRRR collision: GEFS namespace as .gefs.prop, merge at read
Phase B — Validation harness:
- scripts/validate_algo.py: out-of-sample Spearman rho(score,distance) + baselines
- docs/algo-reports/validation-2026-08-01.{json,md}
Phase C — Forecast-skill evaluation:
- scripts/validate_forecast.py: skill degradation by lead time (0h-24h)
- docs/algo-reports/forecast-2026-08-01.{json,md}
Phase D — Calibration + model improvements:
- recalibrate.py: validation gate before weight deploy
- Recalibrator: Nx.max(0.0) replaces Nx.abs(), L2 regularization, val-set integrity
- ML train/serve defaults unified; prop_compare null-handling skew fixed
- Latitude-aware sunrise: solar-declination sunrise_hour(lat,month) (Elixir + Rust)
- Path scoring: wind/sky/rain from HRRR (was ~30% of composite weight silent)
- Region multiplier documented as unvalidated; PWAT/refractivity doc-vs-code noted
- algo.md: synced scoring sections, marked retired features, D5/D6 changelog
- Credo: path_compute cyclomatic complexity bumped (6->10 fields) — informational only
Graham McIntire
2fd88a94ea