Collapse the terminal dock from Escape anywhere in the panel.

Drop unused suggestion state and copy, and give the panel a reduced-motion-aware open transition.

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

e2e/terminal.e2e.ts

@@ -64,4 +64,25 @@ test.describe('terminal dock', () => {
     await input.press('Tab');
     await expect(input).toHaveValue('navigate');
   });
+
+  test('Escape from a panel control collapses the dock and returns focus to the trigger', async ({
+    page,
+  }) => {
+    const copy = SIGNATURE_COPY.de.terminal;
+    await page.goto('/');
+
+    const trigger = page.locator('.terminal-dock-trigger');
+    const panel = page.locator('.terminal-dock-panel');
+
+    await trigger.click();
+    await expect(panel).toBeVisible();
+
+    const collapse = page.getByRole('button', { name: copy.collapseLabel });
+    await collapse.focus();
+    await expect(collapse).toBeFocused();
+
+    await page.keyboard.press('Escape');
+    await expect(panel).toHaveCount(0);
+    await expect(trigger).toBeFocused();
+  });
 });