refactor(zip): 统一压缩生成选项

Author: JoeyLearnsToCode

src/services/exportService.ts

@@ -3,12 +3,14 @@
  */
 
 import { db } from '@/db/schema';
-import JSZip from 'jszip';
+import JSZip, { type JSZipGeneratorOptions } from 'jszip';
 import { saveAs } from 'file-saver';
 import { storage, STORAGE_KEYS } from '@/utils/storage';
 import { importService } from './importService';
 import type { ImportOptions, ImportProgressCallback } from '@/types/import';
 
+export const zipGenOptions: JSZipGeneratorOptions<'blob'> = { type: 'blob', compression: 'DEFLATE', compressionOptions: { level: 5 } };
+
 export class ExportService {
   /**
    * 导出单个项目为 JSON
@@ -126,7 +128,7 @@ export class ExportService {
       )
     );
 
-    const blob = await zip.generateAsync({ type: 'blob' });
+    const blob = await zip.generateAsync(zipGenOptions);
     saveAs(blob, `prompt-studio-backup-${Date.now()}.zip`);
   }
 

src/services/webdavService.ts

@@ -10,6 +10,7 @@ import { importService } from './importService';
 import { ImportOptions, ImportProgressCallback } from '@/types/import';
 import { useI18nStore } from '@/store/i18nStore';
 import { translations } from '@/i18n/locales';
+import { zipGenOptions } from './exportService';
 
 export interface WebDAVConfig {
   url: string;
@@ -145,7 +146,7 @@ export class WebDAVService {
       );
 
       // 2. 生成 ZIP
-      const blob = await zip.generateAsync({ type: 'blob' });
+      const blob = await zip.generateAsync(zipGenOptions);
 
       // 3. 上传到 WebDAV
       const filename = `prompt-studio-backup-${Date.now()}.zip`;