feat: 修改列表默认状态

src/views/Community/components/DynamicNewsCard/VerticalModeLayout.js

@@ -33,7 +33,7 @@ const VerticalModeLayout = ({
   borderColor,
 }) => {
   // 布局模式状态：'detail' = 聚焦详情（默认），'list' = 聚焦列表
-  const [layoutMode, setLayoutMode] = useState('list');
+  const [layoutMode, setLayoutMode] = useState('detail');
 
   // 详情面板重置 key（切换到 list 模式时改变，强制重新渲染）
   const [detailPanelKey, setDetailPanelKey] = useState(0);