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>

src/app/shared/terminal/terminal-dock.spec.ts

@@ -148,6 +148,24 @@ describe('TerminalDock', () => {
     expect(document.activeElement).toBe(trigger(fixture));
   });
 
+  it.each(APP_LOCALES)(
+    'closes on Escape from a panel control and returns focus to the trigger (%s)',
+    async (locale) => {
+      const fixture = await createFixture(locale);
+      await openViaTrigger(fixture);
+
+      const maximize = fixture.nativeElement.querySelector('[aria-pressed]') as HTMLButtonElement;
+      maximize.focus();
+      expect(document.activeElement).toBe(maximize);
+
+      maximize.dispatchEvent(new KeyboardEvent('keydown', { key: 'Escape', bubbles: true }));
+      await flush(fixture);
+
+      expect(panel(fixture)).toBeNull();
+      expect(document.activeElement).toBe(trigger(fixture));
+    },
+  );
+
   it.each(APP_LOCALES)('does not lock scroll or mark the page inert (%s)', async (locale) => {
     document.body.style.overflow = 'auto';
     const fixture = await createFixture(locale);