show assistant replies below avatar and profile name

tests/e2e/chat-rendering-smoke.spec.ts

@@ -102,3 +102,45 @@ test('opens the session model dialog and the session search from the chat header
   await page.getByRole('button', { name: /search/i }).first().click()
   await expect(page.getByPlaceholder(/search/i).first()).toBeVisible()
 })
+
+
+test('assistant replies start below the avatar and profile name on desktop and mobile', async ({ page }, testInfo) => {
+  await authenticate(page, TEST_ACCESS_KEY, 'research')
+  await mockHermesApi(page)
+  await mockChatSocket(page)
+  await page.goto('/#/hermes/chat')
+  await sendChatMessage(page, '检查一下服务状态')
+  const { sessionId } = await waitForRunSessionId(page)
+  await page.evaluate((sid) => {
+    const socket = (window as any).__PW_CHAT_SOCKET__.latest
+    socket.__trigger('message.delta', {
+      event: 'message.delta', session_id: sid, run_id: 'avatar-layout',
+      delta: 'UI 收到，通信正常。\n\n这台机器状态：Hermes Web UI 跑在 8648 端口，一切照旧。有活直接说，我随时待命。',
+    })
+    socket.__trigger('run.completed', { event: 'run.completed', session_id: sid, run_id: 'avatar-layout' })
+  }, sessionId)
+  const message = page.locator('.message.assistant').last()
+  const avatar = message.locator('.msg-avatar')
+  const profileName = message.locator('.msg-profile-name')
+  await expect(profileName).toHaveText('research')
+  const bubble = message.locator('.message-bubble')
+  await expect(bubble).toContainText('UI 收到，通信正常。')
+  for (const width of [1440, 900, 390]) {
+    await page.setViewportSize({ width, height: 900 })
+    await expect.poll(async () => {
+      const image = await avatar.boundingBox()
+      const reply = await bubble.boundingBox()
+      return image && reply ? reply.y - (image.y + image.height) : -1
+    }).toBeGreaterThanOrEqual(6)
+    const image = (await avatar.boundingBox())!
+    const reply = (await bubble.boundingBox())!
+    const name = (await profileName.boundingBox())!
+    expect(name.x).toBeGreaterThanOrEqual(image.x + image.width + 6)
+    expect(Math.abs(name.y + name.height / 2 - image.y - image.height / 2)).toBeLessThan(2)
+    expect(name.y + name.height).toBeLessThan(reply.y)
+    expect(Math.abs(reply.x - image.x)).toBeLessThan(1)
+    expect(reply.x + reply.width).toBeLessThanOrEqual(width)
+    expect(await message.evaluate(element => element.scrollWidth <= element.clientWidth + 1)).toBe(true)
+    if (width === 1440) await message.screenshot({ path: testInfo.outputPath('assistant-below-avatar.png'), animations: 'disabled' })
+  }
+})