Add JMA Haneda temps and fix stale detail loading

frontend/components/dashboard/PanelSections.tsx

@@ -724,6 +724,7 @@ export function ForecastTable() {
   if (!data) return null;
 
   const daily = data.forecast?.daily || [];
+  const isSparseDaily = daily.length <= 1;
   const resolveForecastTemp = (date: string, fallback: number | null | undefined) => {
     const debPrediction = data.multi_model_daily?.[date]?.deb?.prediction;
     return debPrediction ?? fallback ?? null;
@@ -731,6 +732,20 @@ export function ForecastTable() {
   return (
     <section className="forecast-section">
       <h3>{t("forecast.title")}</h3>
+      {isSparseDaily && (
+        <div
+          className="forecast-inline-note"
+          style={{
+            color: "var(--text-secondary)",
+            fontSize: "12px",
+            marginBottom: "10px",
+          }}
+        >
+          {store.loadingState.cityDetail
+            ? "多日预报同步中，正在刷新完整日序列。"
+            : "当前只收到当日预报，其他日期结果暂未回传。"}
+        </div>
+      )}
       <div className="forecast-table">
         {daily.length === 0 ? (
           <EmptyState text={t("forecast.empty")} />