feat: persist cleaned question insights

ai_knowledge_base_v2/apps/admin-web/src/App.vue

@@ -927,7 +927,26 @@ async function resetChatFilters() {
 
 async function searchQuestionInsights() {
   pagers.questionInsights.page = 1;
-  await loadRecordTab("questionInsights");
+  loading.value = true;
+  try {
+    const refresh = await api.refreshQuestionInsights({
+      dateFrom: formatRecordDateTime(questionInsightFilters.dateFrom, "start"),
+      dateTo: formatRecordDateTime(questionInsightFilters.dateTo, "end"),
+      maxMessages: questionInsightFilters.maxMessages,
+    });
+    await loadQuestionInsights(1, pagers.questionInsights.pageSize);
+    if (refresh.processedMessages > 0) {
+      ElMessage.success(
+        `新增清洗 ${refresh.processedMessages} 条消息，得到 ${refresh.acceptedQuestions} 个有效问题${refresh.hasMore ? "；仍有历史消息待清洗" : ""}`,
+      );
+    } else {
+      ElMessage.success("没有新增消息，已直接使用持久化清洗结果统计");
+    }
+  } catch (error) {
+    ElMessage.error(error instanceof Error ? error.message : "问题洞察刷新失败");
+  } finally {
+    loading.value = false;
+  }
 }
 
 async function resetQuestionInsightFilters() {
@@ -1555,17 +1574,17 @@ function formatRecordDateTime(value: string, boundary: "start" | "end") {
                   <el-input-number v-model="questionInsightFilters.minCount" :min="1" :max="50" controls-position="right" />
                 </label>
                 <label class="insight-number-field">
-                  <span>最多扫描</span>
+                  <span>单次清洗上限</span>
                   <el-input-number v-model="questionInsightFilters.maxMessages" :min="100" :max="20000" :step="500" controls-position="right" />
                 </label>
                 <div class="record-filter-actions">
-                  <el-button type="primary" @click="searchQuestionInsights">统计问题</el-button>
+                  <el-button type="primary" :loading="loading" @click="searchQuestionInsights">刷新并统计</el-button>
                   <el-button @click="resetQuestionInsightFilters">重置</el-button>
                 </div>
               </div>
-              <p class="question-insight-help">一期先对用户消息做去噪、拆问、同义词归一和相似问法合并；后续可把清洗后的结果交给大模型做更细的主题命名。</p>
+              <p class="question-insight-help">清洗结果会持久化保存；点击“刷新并统计”只处理尚未清洗的用户消息，再按当前时间范围聚合，翻页不会重新扫描聊天原文。</p>
               <section v-if="questionInsights" class="question-insight-summary">
-                <div><span>扫描用户消息</span><strong>{{ questionInsights.summary.scannedMessages }}</strong></div>
+                <div><span>纳入清洗消息</span><strong>{{ questionInsights.summary.scannedMessages }}</strong></div>
                 <div><span>有效问题</span><strong>{{ questionInsights.summary.cleanedQuestions }}</strong></div>
                 <div><span>过滤低价值</span><strong>{{ questionInsights.summary.filteredMessages }}</strong></div>
                 <div><span>高频问题组</span><strong>{{ questionInsights.summary.visibleClusterCount }}</strong></div>