update for 4 hour rain forecast

cmd/ingestd/web.go

@@ -179,16 +179,29 @@ func (s *webServer) handleDashboard(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	const rainModelName = "rain_next_1h"
+	const rainModelName = "rain_next_4h"
+	const rainModelHorizonHours = 4
 
-	latestRainPrediction, err := s.db.LatestRainPrediction(r.Context(), s.site.Name, rainModelName)
+	latestRainPrediction, err := s.db.LatestRainPrediction(
+		r.Context(),
+		s.site.Name,
+		rainModelName,
+		rainModelHorizonHours,
+	)
 	if err != nil {
 		http.Error(w, "failed to query latest rain prediction", http.StatusInternalServerError)
 		log.Printf("web dashboard latest rain prediction error: %v", err)
 		return
 	}
 
-	rainPredictionRange, err := s.db.RainPredictionSeriesRange(r.Context(), s.site.Name, rainModelName, start, end)
+	rainPredictionRange, err := s.db.RainPredictionSeriesRange(
+		r.Context(),
+		s.site.Name,
+		rainModelName,
+		rainModelHorizonHours,
+		start,
+		end,
+	)
 	if err != nil {
 		http.Error(w, "failed to query rain predictions", http.StatusInternalServerError)
 		log.Printf("web dashboard rain prediction range error: %v", err)