v0.1.1: 多Agent代码质量审查+优化

- fix: useCodeMirror onChange闭包过期导致编辑器内容丢失同步(P0)
- feat: 全部组件添加displayName(React DevTools调试支持)
- feat: 全部组件添加ARIA属性(WCAG无障碍支持)
- fix: App异步操作添加try-catch错误边界
- fix: tabStore空catch块添加错误日志
- fix: sidebarStore Set→string[](Zustand可序列化)
- fix: useDragDrop readFile错误处理+空文件修复
- fix: useSettings/useTheme load()添加错误处理
- fix: useTheme toggleDarkMode引用优化
- chore: 版本号升级至0.1.1

src/renderer/components/Editor/Editor.tsx

@@ -87,9 +87,11 @@ export function Editor({ darkMode }: EditorProps) {
   }, [viewRef])
 
   return (
-    <div className="editor-container">
+    <div className="editor-container" role="region" aria-label="Markdown编辑器">
       <EditorToolbar viewRef={viewRef} />
       <div ref={containerRef} className="codemirror-wrapper" />
     </div>
   )
 }
+
+Editor.displayName = 'Editor'

src/renderer/components/Editor/useCodeMirror.ts

@@ -17,6 +17,12 @@ export function useCodeMirror({ content, onChange, darkMode }: UseCodeMirrorOpti
   const containerRef = useRef<HTMLDivElement>(null)
   const viewRef = useRef<EditorView | null>(null)
   const isExternalUpdate = useRef(false)
+  const onChangeRef = useRef(onChange)
+
+  // 始终保持 onChangeRef 为最新回调
+  useEffect(() => {
+    onChangeRef.current = onChange
+  }, [onChange])
 
   // 初始化编辑器
   useEffect(() => {
@@ -61,7 +67,7 @@ export function useCodeMirror({ content, onChange, darkMode }: UseCodeMirrorOpti
       EditorView.lineWrapping,
       EditorView.updateListener.of(update => {
         if (update.docChanged && !isExternalUpdate.current) {
-          onChange(update.state.doc.toString())
+          onChangeRef.current(update.state.doc.toString())
         }
       })
     ]