fix(aihr): keep interview record fallback honest

frontend/src/views/recruit/interview.vue

@@ -13,6 +13,15 @@
       </div>
     </section>
 
+    <el-alert
+      v-if="recordsFallback"
+      class="demo-data-alert"
+      title="面试记录接口暂不可用，当前显示演示记录，不代表真实面试数据"
+      type="warning"
+      :closable="false"
+      show-icon
+    />
+
     <section class="flow-strip">
       <div v-for="step in flowSteps" :key="step.title" class="flow-step" :class="{ active: step.active, done: step.done }">
         <span>{{ step.index }}</span>
@@ -473,6 +482,7 @@ const apiQuestions = ref<InterviewQuestion[]>([]);
 const apiScoreResult = ref<CandidateSeed['scoreResult'] | null>(null);
 const answers = reactive<Record<string, string>>({});
 const records = ref<InterviewRecord[]>([...baseRecords]);
+const recordsFallback = ref(false);
 const interviewReviewVisible = ref(false);
 const interviewReviewSaving = ref(false);
 const reviewingRecord = ref<InterviewRecord | null>(null);
@@ -672,9 +682,11 @@ const questionPillClass = (question: InterviewQuestion) => {
 const loadInterviewRecords = async () => {
   try {
     const { data } = await listInterviewRecords(20);
-    records.value = data?.length ? data : [...baseRecords];
+    records.value = data ?? [];
+    recordsFallback.value = false;
   } catch {
     records.value = [...baseRecords];
+    recordsFallback.value = true;
   }
 };