Refine play type integration flow and docs

src/components/unified-creation/workspaces/Match3DCreationWorkspace.interaction.test.tsx

@@ -131,7 +131,9 @@ test('match3d workspace can defer visible chrome to the unified creation page',
   expect(workspace?.className).not.toContain('overflow-hidden');
   expect(workspace?.className).not.toContain('platform-remap-surface');
   expect(screen.queryByRole('heading', { name: '想做个什么玩法？' })).toBeNull();
-  expect(screen.getByLabelText('想做一个什么题材的抓大鹅？')).toBeTruthy();
+  const themeInput = screen.getByLabelText('想做一个什么题材的抓大鹅？');
+  expect(themeInput).toBeTruthy();
+  expect(themeInput.className).not.toContain('h-full');
 });
 
 test('match3d workspace omits legacy asset style fields from entry payload', () => {