v0.2.0: 全面代码质量优化

- ESLint flat config + Prettier + EditorConfig
- Markdown处理器LRU缓存
- Zustand选择器优化减少重渲染
- CodeMirror Compartment主题热切换
- Preview防抖(150ms) + IndexedDB去抖(500ms)
- 组件拆分: App.tsx 310→104行, Sidebar.tsx 244→90行
- 统一错误处理 errorHandler.ts
- ConfirmDialog替代原生confirm
- LoadingSpinner加载状态
- Toast多条堆叠+类型区分
- 可访问性增强(ARIA属性、键盘导航)
- Vitest测试框架(78个测试用例)
- Git hooks(husky + lint-staged)
- 项目文档(README.md, CONTRIBUTING.md)

src/renderer/hooks/useDragDrop.ts

@@ -2,6 +2,7 @@ import { useEffect, useCallback } from 'react'
 import { useTabStore } from '../stores/tabStore'
 import { isAllowedFile } from '../lib/fileUtils'
 import { MAX_FILE_SIZE } from '../lib/constants'
+import { logError } from '../lib/errorHandler'
 
 export function useDragDrop(showToast: (msg: string) => void) {
   const createTab = useTabStore(s => s.createTab)
@@ -15,7 +16,7 @@ export function useDragDrop(showToast: (msg: string) => void) {
 
     let rejected = 0
     for (const file of Array.from(files)) {
-      const filePath = (file as File & { path?: string }).path || file.name
+      const filePath: string = (file as File & { path?: string }).path || file.name
       if (!isAllowedFile(filePath)) {
         rejected++
         continue
@@ -31,12 +32,12 @@ export function useDragDrop(showToast: (msg: string) => void) {
           if (result.success && result.content !== undefined) {
             createTab(filePath, result.content)
           }
-        } catch (err) {
-          console.error('Failed to read file via electronAPI:', err)
+        } catch (error) {
+          logError('拖拽读取文件失败', error)
         }
       } else {
         const reader = new FileReader()
-        reader.onload = (ev) => {
+        reader.onload = (ev: ProgressEvent<FileReader>) => {
           const content = ev.target?.result as string
           createTab(file.name, content)
         }