Wait for settled material notices in browser checks

Why: A failed task card can appear before its notification turn, and the second finding must be observed while work is still running.

Evidence: The strengthened browser checks first exposed missing fixture notice text and a zero-width second-stage window; after fixture correction all six task-owned HTTP/Playwright scenarios passed. Frontend 265 unit tests and build passed.

Impact: Test coverage only; no production UI change.

Refs: U3 r0.4 independent review Important 5

e2e/work-checkpoints.playwright.ts

@@ -25,7 +25,19 @@ async function setup(request:any,scenario:Scenario='normal',awaitTask=true){
   const out=await(await request.get(manifest.base+`/api/conversations/${conv.id}/cards`)).json()
   return out.cards.find((c:any)=>c.task)?.task.executionState
  }).toBe(scenario.endsWith('failure')?'failed':'completed')
- return {project,conv,ids}
+ return {project,conv,ids,sendRunId:sendBody.run.id}
+}
+async function waitForFailureNotice(request:any,seed:any){
+ await expect.poll(async()=>{
+  const response=await request.get(manifest.base+`/api/conversations/${seed.conv.id}`)
+  if(!response.ok())return false
+  const current=await response.json()
+  const children=current.runs.filter((r:any)=>r.kind==='subagent')
+  const notices=current.messages.filter((m:any)=>m.role==='system'&&m.parts?.some((p:any)=>p.type==='text'&&p.text?.includes('后台子代理「')))
+  const noticeRuns=current.runs.filter((r:any)=>r.kind==='conversation'&&r.id!==seed.sendRunId)
+  return children.length>0&&notices.length>=children.length&&noticeRuns.length>=children.length&&
+   noticeRuns.every((r:any)=>['completed','failed','interrupted'].includes(r.status))
+ }).toBe(true)
 }
 async function open(page:any,seed:any){
  await page.addInitScript(({id}:{id:string})=>{localStorage.setItem('as.conv',id);localStorage.setItem('as.ui',JSON.stringify({theme:'light',rightCollapsed:true,fontSize:14}))},{id:seed.conv.id})
@@ -69,19 +81,21 @@ test('two sourced stages appear while the material task is still running',async(
  const cards=async()=>(await(await request.get(manifest.base+`/api/conversations/${seed.conv.id}/cards`)).json()).cards
  await expect.poll(async()=>{const card=(await cards()).find((c:any)=>c.task);return card?.task.executionState}).toBe('running')
  await expect(page.locator('[data-conversation-work]')).toContainText('上线六月')
- await expect.poll(async()=>{const card=(await cards()).find((c:any)=>c.task);return card?.task.findings?.length}).toBeGreaterThan(1)
+ await expect.poll(async()=>{const card=(await cards()).find((c:any)=>c.task);return card?.task.executionState==='running'&&card.task.checkpointSeq>=2&&card.task.findings?.length>1}).toBe(true)
  await expect(page.locator('[data-conversation-work]')).toContainText('验收条件需要补齐')
  await expect.poll(async()=>{const card=(await cards()).find((c:any)=>c.task);return card?.task.executionState}).toBe('completed')
 })
 for(const scenario of ['zero-failure','partial-failure'] as const){
  test(`${scenario} shows the saved scope without a deliverable choice`,async({page,request})=>{
   const seed=await setup(request,scenario)
+  await waitForFailureNotice(request,seed)
   await page.addInitScript(({id}:{id:string})=>{localStorage.setItem('as.conv',id);localStorage.setItem('as.ui',JSON.stringify({theme:'light',rightCollapsed:true,fontSize:14}))},{id:seed.conv.id})
   await page.goto('/')
   const work=page.locator('[data-conversation-work]')
   await expect(work).toContainText('执行失败')
   if(scenario==='zero-failure')await expect(work).toContainText('暂无阶段结论记录')
   else await expect(work).toContainText('上线六月')
+  await expect(page.getByText('后台整理状态已回投工作卡；请按卡片中的结果继续。').last()).toBeVisible()
   await expect(page.locator('.hitl-choice')).toHaveCount(0)
  })
 }