feat: 最後量測時間

app/citizen-frontend/src/components/PhysicalFitnessSummary.vue

@@ -19,7 +19,7 @@
       </div>
     </v-card-title>
 
-    <v-card-subtitle> 顯示目前帳號各測驗項目的最新成績。 </v-card-subtitle>
+    <v-card-subtitle> 最後量測時間：{{ formattedReceivedAt }} </v-card-subtitle>
 
     <v-card-text>
       <v-progress-linear
@@ -86,6 +86,7 @@ const props = defineProps<{
   error: string;
   items: PhysicalFitnessItem[];
   loading: boolean;
+  receivedAt: string | null;
 }>();
 
 defineEmits<{
@@ -125,6 +126,22 @@ const displayItems = computed(() =>
 const completedCount = computed(
   () => displayItems.value.filter((item) => item.fitnessScore !== null).length,
 );
+
+const formattedReceivedAt = computed(() => {
+  if (!props.receivedAt) {
+    return "無資料";
+  }
+
+  const receivedAt = new Date(props.receivedAt);
+  if (Number.isNaN(receivedAt.getTime())) {
+    return "無資料";
+  }
+
+  return new Intl.DateTimeFormat("zh-TW", {
+    dateStyle: "medium",
+    timeStyle: "short",
+  }).format(receivedAt);
+});
 </script>
 
 <style scoped>