diff --git a/admin-frontend-vue/tests/live/task-120-task-live.test.ts b/admin-frontend-vue/tests/live/task-120-task-live.test.ts
new file mode 100644
index 00000000..dc938801
--- /dev/null
+++ b/admin-frontend-vue/tests/live/task-120-task-live.test.ts
@@ -0,0 +1,117 @@
+import test from 'node:test'
+import assert from 'node:assert/strict'
+import { parseImageVideoPage } from '../../src/pages/tasks/image-video-model.ts'
+import { parseShopDataTaskPage } from '../../src/pages/tasks/shop-data-model.ts'
+import { parseDuplicateOverview } from '../../src/pages/tasks/duplicate-model.ts'
+import { parseDuplicateItemsPage } from '../../src/pages/tasks/duplicate-model.ts'
+
+const BASE = process.env.AIIMAGE_LIVE_BASE || 'http://127.0.0.1:18080'
+const USER = process.env.AIIMAGE_LIVE_USER || ''
+const PASS = process.env.AIIMAGE_LIVE_PASS || ''
+const HAS_CREDS = Boolean(USER && PASS)
+const DEVICE = 'claude-task120-task-acceptance'
+
+let sessionCookie = ''
+let bearerToken = ''
+
+async function ensureSession(): Promise<void> {
+  if (sessionCookie || bearerToken) return
+  const res = await fetch(`${BASE}/login`, {
+    method: 'POST',
+    headers: { 'Content-Type': 'application/json' },
+    body: JSON.stringify({ username: USER, password: PASS, deviceId: DEVICE }),
+  })
+  const body = (await res.json()) as { success?: boolean; message?: string; data?: { token?: string } }
+  assert.equal(body.success, true, `登录应成功: ${body.message || ''}`)
+  if (body.data?.token) bearerToken = body.data.token
+  const cookies = typeof res.headers.getSetCookie === 'function' ? res.headers.getSetCookie() : []
+  const setCookie = cookies[0] || res.headers.get('set-cookie') || ''
+  const match = /aiimage_token=([^;]+)/.exec(setCookie)
+  if (match) sessionCookie = `aiimage_token=${match[1]}`
+  assert.ok(sessionCookie || bearerToken, '登录应下发会话 cookie 或 token')
+}
+
+async function authedFetch(path: string, init: RequestInit = {}): Promise<Response> {
+  const headers: Record<string, string> = { ...(init.headers as Record<string, string>) }
+  if (sessionCookie) headers.Cookie = sessionCookie
+  else if (bearerToken) headers.Authorization = `Bearer ${bearerToken}`
+  return fetch(`${BASE}${path}`, { ...init, headers })
+}
+
+test('test_task_120_task_live_reachability_normal_primary_path', async () => {
+  // 正常主路径(无需凭据)：真实服务在线，登录页可访问。
+  const res = await fetch(`${BASE}/login`)
+  assert.equal(res.status, 200)
+  const html = await res.text()
+  assert.ok(html.length > 0)
+})
+
+test('test_task_120_task_live_unauth_rejected', async () => {
+  // 异常输入(无需凭据)：任务/重复检查列表未登录返回 401。
+  for (const path of ['/api/admin/image-video-tasks?page=1&page_size=5', '/api/admin/shop-data-crawl-tasks?page=1&page_size=5']) {
+    const res = await fetch(`${BASE}${path}`)
+    const body = (await res.json()) as { success?: boolean; code?: number }
+    assert.equal(body.success, false, path)
+    assert.equal(body.code, 401, path)
+  }
+})
+
+test('test_task_120_task_live_video_tasks', { skip: !HAS_CREDS }, async () => {
+  // 真实视频任务列表：snake page_size 参数 + 解析归一。
+  await ensureSession()
+  const res = await authedFetch('/api/admin/image-video-tasks?page=1&page_size=5')
+  const page = parseImageVideoPage(await res.json())
+  assert.equal(res.status, 200)
+  assert.ok(Array.isArray(page.items))
+  assert.equal(typeof page.total, 'number')
+})
+
+test('test_task_120_task_live_shop_data_tasks', { skip: !HAS_CREDS }, async () => {
+  // 真实店铺数据任务列表(按店铺分组)。
+  await ensureSession()
+  const res = await authedFetch('/api/admin/shop-data-crawl-tasks?page=1&page_size=5')
+  const page = parseShopDataTaskPage(await res.json())
+  assert.equal(res.status, 200)
+  assert.ok(Array.isArray(page.items))
+  assert.equal(typeof page.total, 'number')
+})
+
+test('test_task_120_task_live_duplicate_overview', { skip: !HAS_CREDS }, async () => {
+  // 真实重复检查总览(pending 或已扫描均可解析)。
+  await ensureSession()
+  const res = await authedFetch('/api/admin/shop-data-crawl/duplicate-check-overview')
+  const overview = parseDuplicateOverview(await res.json())
+  assert.equal(res.status, 200)
+  assert.equal(typeof overview.pending, 'boolean')
+  assert.ok(Array.isArray(overview.shops))
+})
+
+test('test_task_120_task_live_duplicate_items', { skip: !HAS_CREDS }, async () => {
+  // 真实重复检查明细列表(pending 空态或数据)。
+  await ensureSession()
+  const res = await authedFetch('/api/admin/shop-data-crawl/duplicate-check-items?page=1&page_size=10')
+  const page = parseDuplicateItemsPage(await res.json())
+  assert.equal(res.status, 200)
+  assert.equal(typeof page.pending, 'boolean')
+  assert.ok(Array.isArray(page.items))
+})
+
+test('test_task_120_task_live_duplicate_detail', { skip: !HAS_CREDS }, async () => {
+  // 真实重复详情卡片分页。
+  await ensureSession()
+  const res = await authedFetch('/api/admin/shop-data-crawl/duplicate-check-detail?page=1&page_size=3')
+  const detail = await res.json()
+  assert.equal(res.status, 200)
+  assert.ok(typeof detail === 'object')
+})
+
+test('test_task_120_task_live_contract_summary', { skip: !HAS_CREDS }, async () => {
+  // 正常主路径(读契约)：统一 success 信封覆盖任务列表接口。
+  await ensureSession()
+  for (const path of ['/api/admin/image-video-tasks?page=1&page_size=2', '/api/admin/shop-data-crawl-tasks?page=1&page_size=2']) {
+    const res = await authedFetch(path)
+    const body = (await res.json()) as { success?: boolean; data?: unknown }
+    assert.equal(body.success, true, path)
+    assert.ok(body.data && typeof body.data === 'object', path)
+  }
+})