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/hooks/useDragDrop.ts

@@ -26,9 +26,13 @@ export function useDragDrop(showToast: (msg: string) => void) {
       }
 
       if (window.electronAPI) {
-        const result = await window.electronAPI.readFile(filePath)
-        if (result.success && result.content) {
-          createTab(filePath, result.content)
+        try {
+          const result = await window.electronAPI.readFile(filePath)
+          if (result.success && result.content !== undefined) {
+            createTab(filePath, result.content)
+          }
+        } catch (err) {
+          console.error('Failed to read file via electronAPI:', err)
         }
       } else {
         const reader = new FileReader()