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/db/recentFilesRepository.ts

@@ -1,28 +1,28 @@
-import { db } from './schema'
+import { db, type RecentFile } from './schema'
 
 export const recentFilesRepository = {
   async add(filePath: string): Promise<void> {
-    const existing = await db.recentFiles.where('filePath').equals(filePath).first()
+    const existing: RecentFile | undefined = await db.recentFiles.where('filePath').equals(filePath).first()
     if (existing) {
       await db.recentFiles.update(existing.id!, { lastOpened: Date.now() })
     } else {
       await db.recentFiles.add({ filePath, lastOpened: Date.now() })
     }
     // L-06: 清理超过 50 条的旧记录
-    const all = await db.recentFiles.orderBy('lastOpened').reverse().toArray()
+    const all: RecentFile[] = await db.recentFiles.orderBy('lastOpened').reverse().toArray()
     if (all.length > 50) {
       const toDelete = all.slice(50)
-      await db.recentFiles.bulkDelete(toDelete.map(f => f.id!))
+      await db.recentFiles.bulkDelete(toDelete.map((f: RecentFile) => f.id!))
     }
   },
 
-  async getAll(limit = 20): Promise<string[]> {
-    const files = await db.recentFiles
+  async getAll(limit: number = 20): Promise<string[]> {
+    const files: RecentFile[] = await db.recentFiles
       .orderBy('lastOpened')
       .reverse()
       .limit(limit)
       .toArray()
-    return files.map((f: { filePath: string; lastOpened: number }) => f.filePath)
+    return files.map((f: RecentFile) => f.filePath)
   },
 
   async remove(filePath: string): Promise<void> {