Simplified the forecast schema and removed fields deprecated upstream in weatherfeeder

internal/adapters/inbound/httpapi/endpoints_test.go

@@ -394,6 +394,51 @@ func TestForecastPrecisionTwo(t *testing.T) {
 	}
 }
 
+func TestForecastJSONOmitsLegacyDescriptionFields(t *testing.T) {
+	h := newHandler(t, &fakeService{
+		forecast: &model.WeatherForecastRun{
+			Product:  model.ForecastProductHourly,
+			IssuedAt: time.Now().UTC(),
+			Periods: []model.WeatherForecastPeriod{{
+				StartTime:       time.Now().UTC(),
+				EndTime:         time.Now().UTC().Add(time.Hour),
+				ConditionCode:   model.WMOUnknown,
+				TextDescription: "Cloudy",
+			}},
+		},
+	}, "/forecast/hourly")
+
+	w := httptest.NewRecorder()
+	req := httptest.NewRequest(http.MethodGet, "/forecast/hourly", nil)
+	h.ServeHTTP(w, req)
+
+	if w.Code != http.StatusOK {
+		t.Fatalf("expected 200, got %d", w.Code)
+	}
+
+	var payload struct {
+		Data struct {
+			Periods []map[string]any `json:"periods"`
+		} `json:"data"`
+	}
+	if err := json.Unmarshal(w.Body.Bytes(), &payload); err != nil {
+		t.Fatalf("decode forecast payload: %v", err)
+	}
+	if len(payload.Data.Periods) == 0 {
+		t.Fatalf("expected at least one period")
+	}
+
+	period := payload.Data.Periods[0]
+	for _, key := range []string{"conditionText", "providerRawDescription", "detailedText", "iconUrl"} {
+		if _, ok := period[key]; ok {
+			t.Fatalf("unexpected legacy field %q in forecast response period: %#v", key, period)
+		}
+	}
+	if period["textDescription"] != "Cloudy" {
+		t.Fatalf("expected textDescription Cloudy, got %#v", period["textDescription"])
+	}
+}
+
 func TestForecastTimezoneOffsetUppercaseTZConvertsAllTimes(t *testing.T) {
 	issuedAt := time.Date(2026, 7, 10, 15, 0, 0, 0, time.UTC)
 	updatedAt := issuedAt.Add(30 * time.Minute)