task-108(任务与重复分析中心): 实现视频任务数据范围权限配置

新增 task-permission.ts(授权用户列表解析/已授权 id/保存负载/变更判定)，
image-video-api.ts 增加 fetch/saveImageVideoPermissions(GET|PUT /image-video-
task-permissions)。

TDD: task-108.test.ts 8 用例先 RED 后 GREEN。

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

@@ -3,8 +3,10 @@ import { http } from '@/api/http'
 import { parseImageVideoDetail, parseImageVideoPage, type ImageVideoDetail, type ImageVideoPageResult } from './image-video-model.ts'
 import { toImageVideoQuery, type ImageVideoFilter } from './image-video-filter.ts'
 import { downloadZipHeaderCounts, toVideoZipRequest } from './image-video-download.ts'
+import { parseTaskPermissionPayload, toPermissionUserIdsPayload, type TaskPermissionItem } from './task-permission.ts'
 
 export const IMAGE_VIDEO_TASKS_ENDPOINT = '/api/admin/image-video-tasks'
+export const IMAGE_VIDEO_TASK_PERMISSIONS_ENDPOINT = '/api/admin/image-video-task-permissions'
 
 export async function fetchImageVideoTasks(
   filter: ImageVideoFilter,
@@ -37,3 +39,14 @@ export async function requestVideoZipDownload(keys: readonly string[]): Promise<
   const counts = downloadZipHeaderCounts(headers as Record<string, string>)
   return { blob: data, fileCount: counts.fileCount, errorCount: counts.errorCount }
 }
+
+/** 加载视频任务数据范围授权用户列表：GET /api/admin/image-video-task-permissions。 */
+export async function fetchImageVideoPermissionUsers(): Promise<TaskPermissionItem[]> {
+  const { data } = await http.get<unknown>(IMAGE_VIDEO_TASK_PERMISSIONS_ENDPOINT)
+  return parseTaskPermissionPayload(data)
+}
+
+/** 保存视频任务数据范围授权：PUT /api/admin/image-video-task-permissions { user_ids }。 */
+export async function saveImageVideoPermissions(userIds: Iterable<number>): Promise<void> {
+  await http.put<unknown>(IMAGE_VIDEO_TASK_PERMISSIONS_ENDPOINT, toPermissionUserIdsPayload(userIds))
+}

admin-frontend-vue/src/pages/tasks/task-permission.ts

@@ -0,0 +1,55 @@
+/** 任务数据范围权限配置模型（任务 108，复用店铺数据任务 114）：解析授权用户列表与授权集变更；纯逻辑。 */
+import { unwrap } from '../../api/envelope.ts'
+
+/** 数据范围授权用户行（Java ImageVideoDataPermissionUserVo / ShopDataCrawlDataPermissionUserVo）。 */
+export interface TaskPermissionItem {
+  id: number
+  username: string
+  granted: boolean
+}
+
+function text(value: unknown): string {
+  return typeof value === 'string' ? value.trim() : ''
+}
+
+function numberOrNull(value: unknown): number | null {
+  return typeof value === 'number' && Number.isFinite(value) ? Math.floor(value) : null
+}
+
+/** 解析权限负载(data 数组或 {items})为授权用户行；缺 id 过滤。 */
+export function parseTaskPermissionPayload(payload: unknown): TaskPermissionItem[] {
+  const data = unwrap<unknown>(payload)
+  const list = Array.isArray(data) ? data : data && typeof data === 'object' ? (data as Record<string, unknown>).items : null
+  if (!Array.isArray(list)) return []
+  return list
+    .map((raw): TaskPermissionItem | null => {
+      if (!raw || typeof raw !== 'object') return null
+      const record = raw as Record<string, unknown>
+      const id = numberOrNull(record.id)
+      if (id === null || id < 1) return null
+      return { id, username: text(record.username), granted: record.granted === true }
+    })
+    .filter((item): item is TaskPermissionItem => item !== null)
+}
+
+/** 已授权用户 id(升序)。 */
+export function grantedUserIds(items: readonly TaskPermissionItem[]): number[] {
+  return items
+    .filter((item) => item.granted)
+    .map((item) => item.id)
+    .sort((a, b) => a - b)
+}
+
+/** 保存负载：PUT { user_ids }（后端按数值 id 重算授权）。 */
+export function toPermissionUserIdsPayload(userIds: Iterable<number>): { user_ids: number[] } {
+  return { user_ids: Array.from(userIds) }
+}
+
+/** 初始授权集与当前选择是否不一致(需提示保存)。 */
+export function permissionSelectionChanged(initial: ReadonlySet<number>, current: ReadonlySet<number>): boolean {
+  if (initial.size !== current.size) return true
+  for (const id of initial) {
+    if (!current.has(id)) return true
+  }
+  return false
+}