task-66(ASIN 数据中心): 实现去重汇总导入轮询和终态

dedupe-import-model.ts 增 parseDedupeImportProgress(status/计数/errorMessage，缺省 pending、
未知状态不改) + importTaskFinished/importTaskSucceeded 终态判定；dedupe-import-api.ts 增
fetchDedupeImportProgress GET /api/admin/dedupe-total-data/import/{importId}。
8 用例全过，483 单测 + build 绿。

admin-frontend-vue/src/pages/asin/dedupe-import-api.ts

@@ -1,6 +1,6 @@
 /** 去重汇总导入启动适配（任务 65）：multipart POST /import(file+groupId) → importId。 */
 import { http } from '@/api/http'
-import { parseDedupeImportStart } from './dedupe-import-model'
+import { parseDedupeImportProgress, parseDedupeImportStart, type DedupeImportProgress } from './dedupe-import-model'
 
 export const DEDUPE_IMPORT_ENDPOINT = '/api/admin/dedupe-total-data/import'
 
@@ -11,3 +11,9 @@ export async function startDedupeImport(file: File, groupId: number): Promise<st
   const { data } = await http.post<unknown>(DEDUPE_IMPORT_ENDPOINT, form)
   return parseDedupeImportStart(data)
 }
+
+/** 查询导入进度：GET /import/{importId}。 */
+export async function fetchDedupeImportProgress(importId: string): Promise<DedupeImportProgress> {
+  const { data } = await http.get<unknown>(`${DEDUPE_IMPORT_ENDPOINT}/${importId}`)
+  return parseDedupeImportProgress(data)
+}

admin-frontend-vue/src/pages/asin/dedupe-import-model.ts

@@ -16,3 +16,54 @@ export function parseDedupeImportStart(payload: unknown): string {
   if (!importId) throw new Error('导入任务响应异常：缺少任务 ID')
   return importId
 }
+
+export type DedupeImportStatus = 'pending' | 'running' | 'success' | 'failed'
+
+export interface DedupeImportProgress {
+  status: DedupeImportStatus
+  totalRows: number
+  processedRows: number
+  asinCount: number
+  insertedCount: number
+  skippedCount: number
+  errorMessage?: string
+}
+
+function intOrZero(value: unknown): number {
+  return typeof value === 'number' && Number.isFinite(value) ? Math.floor(value) : 0
+}
+
+/** 归一化导入进度负载；缺省按未开始(pending)处理，未知状态不改。 */
+export function parseDedupeImportProgress(payload: unknown): DedupeImportProgress {
+  const data = unwrap<unknown>(payload)
+  const record = data && typeof data === 'object' ? (data as Record<string, unknown>) : null
+  const rawStatus = typeof record?.status === 'string' ? record.status.trim().toLowerCase() : ''
+  const status: DedupeImportStatus =
+    rawStatus === 'running' || rawStatus === 'success' || rawStatus === 'failed' || rawStatus === 'pending'
+      ? rawStatus
+      : 'pending'
+  const progress: DedupeImportProgress = {
+    status,
+    totalRows: intOrZero(record?.totalRows),
+    processedRows: intOrZero(record?.processedRows),
+    asinCount: intOrZero(record?.asinCount),
+    insertedCount: intOrZero(record?.insertedCount),
+    skippedCount: intOrZero(record?.skippedCount),
+  }
+  const errorMessage =
+    typeof record?.errorMessage === 'string' && record.errorMessage.trim()
+      ? record.errorMessage.trim()
+      : undefined
+  if (errorMessage) progress.errorMessage = errorMessage
+  return progress
+}
+
+/** 是否到达终态(success/failed)。 */
+export function importTaskFinished(progress: Pick<DedupeImportProgress, 'status'>): boolean {
+  return progress.status === 'success' || progress.status === 'failed'
+}
+
+/** 是否成功完成。 */
+export function importTaskSucceeded(progress: Pick<DedupeImportProgress, 'status'>): boolean {
+  return progress.status === 'success'
+}