perf: 全局响应速度优化——1.核心: 所有组件 useStore() 改为窄选择器 useStore(s=>s.field), 之前每次按键 setBody 改变 store.body 导致订阅整个 store 的 14 个组件全部 re-render(TiptapEditor/Editor/FileTree/TabBar/DocInfoPanel/Toolbar/App/SearchBox/TagFilter/SettingsPanel/GraphView/LinkGraph/MoreActions/TitleBar); TiptapEditor 不再订阅 body(仅 currentPath/setBody), body 从 getState() 在 effect 内获取; 2.OutlinePanel collect debounce 300ms(之前每次按键遍历文档树); 3.OutlinePanel scroll handler rAF 节流(之前每像素滚动调 coordsAtPos); 4.修复 TabBar resetEditor 重复声明 + TiptapEditor content 引用

apps/desktop/src/renderer/App.tsx

@@ -29,7 +29,9 @@ import { OutlinePanel } from './features/outline/OutlinePanel';
 import { DocInfoPanel } from './features/doc-info/DocInfoPanel';
 
 export function App() {
-  const { loadVault, loadTree, openDoc } = useStore();
+  const loadVault = useStore(s => s.loadVault);
+  const loadTree = useStore(s => s.loadTree);
+  const openDoc = useStore(s => s.openDoc);
   const { restore, tabs, activeId } = useTabs();
   const [rightTab, setRightTab] = useState<'outline' | 'info'>('outline');
   const [view, setView] = useState<'editor' | 'graph'>('editor');