refactor: 推理对比超时与打字机展示改进

抽取 withTimeout 替代 Promise.race 超时控制，对比结果新增打字机逐字渲染与清理，推理聊天参数与列表类型同步收敛。

frontend/src/views/inference/InferenceListView.vue

@@ -3,6 +3,7 @@ import { ref, onMounted, onUnmounted } from 'vue'
 import { useRouter } from 'vue-router'
 import { ElMessage, ElMessageBox } from 'element-plus'
 import DataTablePage from '@/components/DataTablePage.vue'
+import { usePolling } from '@/composables/usePolling'
 import {
   getCompareList,
   deleteCompare,
@@ -17,7 +18,7 @@ const router = useRouter()
 
 const loading = ref(false)
 const dataList = ref<CompareTask[]>([])
-let refreshTimer: ReturnType<typeof setInterval> | null = null
+let delayedRefreshTimer: ReturnType<typeof setTimeout> | null = null
 
 async function loadData(silent = false) {
   if (!silent) {
@@ -80,7 +81,8 @@ function parseModelNames(row: any): string[] {
 async function handleLoad(row: any) {
   await loadCompare(row.id)
   ElMessage.info('正在加载模型，请稍候...')
-  setTimeout(loadData, 1000)
+  if (delayedRefreshTimer) clearTimeout(delayedRefreshTimer)
+  delayedRefreshTimer = setTimeout(loadData, 1000)
 }
 
 /** 卸载推理任务 */
@@ -112,13 +114,15 @@ function startChat(row: any) {
   router.push(`/model-inference/chat/${row.id}`)
 }
 
-onMounted(() => {
-  loadData()
-  refreshTimer = setInterval(() => loadData(true), 3000)
+const { start: startPolling } = usePolling(() => loadData(true), 3000, { immediate: false })
+
+onMounted(async () => {
+  await loadData()
+  startPolling()
 })
 
 onUnmounted(() => {
-  if (refreshTimer) clearInterval(refreshTimer)
+  if (delayedRefreshTimer) clearTimeout(delayedRefreshTimer)
 })
 </script>