fix(chat): animate app logo while thinking

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

@@ -138,6 +138,25 @@ test('groups assistant output across tool calls until the run ends', async ({ pa
   await expect(page.locator('.run-end')).toHaveText('Run output ended')
 })
 
+test('animates the application logo while thinking and respects reduced motion', async ({ page }) => {
+  await authenticate(page, TEST_ACCESS_KEY, 'research')
+  await mockHermesApi(page)
+  await mockChatSocket(page)
+  await page.goto('/#/hermes/chat')
+  await sendChatMessage(page, 'think')
+  const { sessionId } = await waitForRunSessionId(page)
+  await page.evaluate((sid) => {
+    (window as any).__PW_CHAT_SOCKET__.latest.__trigger('run.started', { event: 'run.started', session_id: sid, run_id: 'thinking-logo' })
+  }, sessionId)
+  const avatar = page.locator('.thinking-avatar')
+  await expect(avatar).toBeVisible()
+  await expect(avatar).toHaveAttribute('src', '/app-logo.png')
+  await expect(avatar).toHaveCSS('animation-name', /^thinking-avatar-breathe/)
+  await page.emulateMedia({ reducedMotion: 'reduce' })
+  await expect(avatar).toHaveCSS('animation-name', 'none')
+  await expect(page.locator('.thinking-status-label')).toHaveCSS('animation-name', 'none')
+})
+
 test('opens the session model dialog and the session search from the chat header', async ({ page }) => {
   await authenticate(page, TEST_ACCESS_KEY, 'research')
   await mockHermesApi(page, { sessions: [sampleSession] })