task-104(任务与重复分析中心): 实现视频任务详情展示

image-video-model.ts 增加 ImageVideoDetail 与 parseImageVideoDetail(脱敏 request/
submit_response/result + error_message/archived_at)，image-video-api.ts 增加
fetchImageVideoTaskDetail(GET /api/admin/image-video-tasks/{id})。

TDD: task-104.test.ts 8 用例先 RED 后 GREEN。

admin-frontend-vue/src/pages/tasks/image-video-api.ts

@@ -1,6 +1,6 @@
-/** 视频任务列表加载适配（任务 103）：GET /api/admin/image-video-tasks + 筛选归一与解析。 */
+/** 视频任务列表/详情适配（任务 103/104）：GET /api/admin/image-video-tasks(/detail)。 */
 import { http } from '@/api/http'
-import { parseImageVideoPage, type ImageVideoPageResult } from './image-video-model.ts'
+import { parseImageVideoDetail, parseImageVideoPage, type ImageVideoDetail, type ImageVideoPageResult } from './image-video-model.ts'
 import { toImageVideoQuery, type ImageVideoFilter } from './image-video-filter.ts'
 
 export const IMAGE_VIDEO_TASKS_ENDPOINT = '/api/admin/image-video-tasks'
@@ -15,3 +15,9 @@ export async function fetchImageVideoTasks(
   })
   return parseImageVideoPage(data)
 }
+
+/** 查询单任务详情（含脱敏 request/结果 JSON）：GET /api/admin/image-video-tasks/{taskId}。 */
+export async function fetchImageVideoTaskDetail(taskId: string | number): Promise<ImageVideoDetail> {
+  const { data } = await http.get<unknown>(`${IMAGE_VIDEO_TASKS_ENDPOINT}/${taskId}`)
+  return parseImageVideoDetail(data)
+}

admin-frontend-vue/src/pages/tasks/image-video-model.ts

@@ -139,3 +139,39 @@ export function parseImageVideoPage(payload: unknown): ImageVideoPageResult {
   if (typeof rawSize === 'number' && rawSize >= 1) out.pageSize = Math.floor(rawSize)
   return out
 }
+
+/** 单任务详情（含脱敏 request/结果 JSON），见任务 104。 */
+export interface ImageVideoDetail extends ImageVideoRow {
+  errorMessage: string
+  archivedAt?: string
+  request: Record<string, unknown>
+  submitResponse: Record<string, unknown>
+  result: Record<string, unknown>
+}
+
+function objectOrEmpty(value: unknown): Record<string, unknown> {
+  return value && typeof value === 'object' && !Array.isArray(value) ? (value as Record<string, unknown>) : {}
+}
+
+/** 解析单任务详情负载（data.item + includeJson 字段）；缺 item/无效任务抛可操作错误。 */
+export function parseImageVideoDetail(payload: unknown): ImageVideoDetail {
+  const core = unwrap<unknown>(payload)
+  const record = core && typeof core === 'object' ? (core as Record<string, unknown>) : {}
+  const itemRaw = record.item
+  if (!itemRaw || typeof itemRaw !== 'object') {
+    throw new Error('视频任务详情响应异常：缺少 item')
+  }
+  const base = toImageVideoRow(itemRaw)
+  if (!base) {
+    throw new Error('视频任务详情响应异常：任务无效')
+  }
+  const detail = base as ImageVideoDetail
+  const r = itemRaw as Record<string, unknown>
+  detail.errorMessage = text(r.error_message ?? r.errorMessage)
+  const archivedAt = text(r.archived_at ?? r.archivedAt)
+  if (archivedAt) detail.archivedAt = archivedAt
+  detail.request = objectOrEmpty(r.request)
+  detail.submitResponse = objectOrEmpty(r.submit_response ?? r.submitResponse)
+  detail.result = objectOrEmpty(r.result)
+  return detail
+}