diff --git a/apps/waterfall-wiki/tests/canvas-ui-integration.ts b/apps/waterfall-wiki/tests/canvas-ui-integration.ts
index ade6fb5..4d28558 100644
--- a/apps/waterfall-wiki/tests/canvas-ui-integration.ts
+++ b/apps/waterfall-wiki/tests/canvas-ui-integration.ts
@@ -10,14 +10,20 @@ export async function verifyCanvasAgentUI(base:string){
  await db().query("INSERT INTO account_users(id,email,password_hash,verified_at) VALUES($1,$2,$3,now())",[owner,email,await hashPassword(password)]);
  const browser=await chromium.launch({executablePath:process.env.CHROMIUM_PATH||'/usr/bin/chromium',headless:true,args:['--no-sandbox','--disable-dev-shm-usage']});
  const context=await browser.newContext({viewport:{width:1440,height:1000}}),errors:string[]=[];
- const page=await context.newPage(),canvasRequests:string[]=[];
+ const page=await context.newPage(),canvasRequests:string[]=[],pending=new Set<string>(),network:string[]=[];
+ const requestName=(request:{method:()=>string;url:()=>string})=>request.method()+' '+new URL(request.url()).pathname;
+ page.on('request',request=>pending.add(requestName(request)));
+ page.on('requestfinished',request=>pending.delete(requestName(request)));
+ page.on('requestfailed',request=>{pending.delete(requestName(request));network.push(requestName(request)+': '+request.failure()?.errorText)});
  page.on('response',response=>{const url=new URL(response.url());if(url.pathname.startsWith('/api/canvases'))canvasRequests.push(`${response.request().method()} ${url.pathname} ${response.status()}`)});
  try{
   page.setDefaultTimeout(20000);page.on('pageerror',e=>errors.push(e.message));
   await page.goto(base+'/',{waitUntil:'domcontentloaded'});
   await page.getByRole('heading',{name:/想法不该停在对话里/,level:1}).waitFor();
-  await page.getByRole('link',{name:'开始创作',exact:true}).click();
-  await page.getByText('登录你的账户',{exact:true}).first().waitFor({state:'attached'});
+  const accountSession=page.waitForResponse(response=>new URL(response.url()).pathname==='/api/account/session'&&response.request().method()==='GET');
+  const [,sessionResponse]=await Promise.all([page.getByRole('link',{name:'开始创作',exact:true}).click(),accountSession]);
+  assert.equal(sessionResponse.status(),200);assert.equal((await sessionResponse.json()).user,null);
+  await page.getByRole('heading',{name:'欢迎回来',exact:true,level:2}).waitFor();
   await page.getByLabel('邮箱地址',{exact:true}).fill(email);
   await page.getByLabel('密码',{exact:true}).fill(password);
   await page.locator('form').getByRole('button',{name:'登录',exact:true}).click();
@@ -94,7 +100,8 @@ export async function verifyCanvasAgentUI(base:string){
   console.log('Canvas UI dispatched a real stored task, received an external-client fixture result, rotated/revoked access and restored its online document');
  }catch(error){
   const statuses=await page.getByRole('status').allTextContents().catch(()=>[]);
-  console.error('Canvas agent UI diagnostics',JSON.stringify({url:page.url(),statuses,canvasRequests:canvasRequests.slice(-20),errors}));
+  const headings=await page.getByRole('heading').allTextContents().catch(()=>[]);
+  console.error('Canvas agent UI diagnostics',JSON.stringify({url:page.url(),browserConnected:browser.isConnected(),headings,statuses,pending:[...pending],network:network.slice(-20),canvasRequests:canvasRequests.slice(-20),errors}));
   throw error;
  }finally{await context.close();await browser.close()}
 }