feat: 模板导出导入 + 模板应用自动刷新主窗口 + 窗口放大 + 状态栏可拖拽

src/types/index.ts

@@ -115,12 +115,15 @@ export interface ElectronAPI {
     getNextIndex: () => Promise<number>
     setNextIndex: (idx: number) => Promise<void>
     resetNextIndex: () => Promise<void>
+    onUpdated: (callback: () => void) => () => void
   }
   template: {
     list: () => Promise<TemplateItem[]>
     save: (data: { name: string; course: string; questions?: QuestionItem[] }) => Promise<number | null>
     delete: (id: number) => Promise<boolean>
     apply: (id: number) => Promise<boolean>
+    exportJson: () => Promise<boolean>
+    importJson: () => Promise<{ count: number } | null>
   }
   dialog: {
     open: (type: string, data?: any) => Promise<void>