Make the terminal dock toggle, scroll, and remember commands honestly.

The desktop trigger now collapses through the shared toggle, the log stays on the newest line, Shift+K is left to the browser, history walks like a shell, and maximize keeps one accessible name.

Co-authored-by: Cursor <cursoragent@cursor.com>

e2e/terminal.e2e.ts

@@ -65,6 +65,63 @@ test.describe('terminal dock', () => {
     await expect(input).toHaveValue('navigate');
   });
 
+  test('clicking the visible desktop trigger while open collapses the panel', async ({
+    page,
+  }, testInfo) => {
+    test.skip(
+      testInfo.project.name === 'mobile',
+      'Below md the trigger is hidden while the panel is open.',
+    );
+
+    await page.goto('/');
+    const trigger = page.locator('.terminal-dock-trigger');
+    const panel = page.locator('.terminal-dock-panel');
+
+    await trigger.click();
+    await expect(panel).toBeVisible();
+    await expect(trigger).toBeVisible();
+    await expect(trigger).toHaveAttribute('aria-expanded', 'true');
+
+    await trigger.click();
+    await expect(panel).toHaveCount(0);
+    await expect(trigger).toHaveAttribute('aria-expanded', 'false');
+    await expect(trigger).toBeFocused();
+  });
+
+  test('keeps the newest echoed line in the log scrollport after overflow', async ({ page }) => {
+    const copy = SIGNATURE_COPY.de.terminal;
+    await page.goto('/');
+
+    const trigger = page.locator('.terminal-dock-trigger');
+    const input = page.locator('#terminal-dock-input');
+    const log = page.locator('.terminal-dock-log');
+
+    await trigger.click();
+    await expect(log).toBeVisible();
+
+    for (let index = 0; index < 8; index += 1) {
+      await input.fill('help');
+      await input.press('Enter');
+    }
+
+    await expect(log.locator('p.echo').last()).toHaveText(`${copy.prompt} help`);
+
+    await expect
+      .poll(async () =>
+        log.evaluate((element) => {
+          return element.scrollTop + element.clientHeight >= element.scrollHeight - 2;
+        }),
+      )
+      .toBe(true);
+
+    const last = log.locator('p').last();
+    const logBox = await log.boundingBox();
+    const lastBox = await last.boundingBox();
+    expect(logBox && lastBox).toBeTruthy();
+    expect(lastBox!.y).toBeGreaterThanOrEqual(logBox!.y - 1);
+    expect(lastBox!.y + lastBox!.height).toBeLessThanOrEqual(logBox!.y + logBox!.height + 1);
+  });
+
   test('Escape from a panel control collapses the dock and returns focus to the trigger', async ({
     page,
   }) => {