feat: 支持Android端导出到Documents并多语言提示

Android端数据导出改为直接保存至Documents目录，导出成功后弹出带路径的多语言提示。引入@capacitor/status-bar与@capawesome/capacitor-file-picker依赖，主入口设置原生状态栏颜色与样式。各语言包补充导出成功带路径提示文案。

src/views/SettingsView.vue

@@ -334,8 +334,7 @@
   import { saveAs } from 'file-saver'
   import { toast } from 'vue-sonner'
   import { Capacitor } from '@capacitor/core'
-  import { Filesystem, Directory } from '@capacitor/filesystem'
-  import { Share } from '@capacitor/share'
+  import { Filesystem, Directory, Encoding } from '@capacitor/filesystem'
   import pkg from '../../package.json'
   import { checkLatestVersion, canCheckVersion } from '@/utils/versionCheck'
   import type { VersionInfo } from '@/utils/versionCheck'
@@ -527,20 +526,16 @@
       const fileName = `${pkg.name}-${new Date().toISOString().slice(0, 10)}-${Date.now()}.json`
       const jsonString = JSON.stringify(exportData, null, 2)
 
-      // Android 使用 Capacitor Filesystem + Share
+      // Android 保存到 Documents 目录
       if (Capacitor.isNativePlatform()) {
-        // 写入文件到缓存目录
         const result = await Filesystem.writeFile({
           path: fileName,
           data: jsonString,
-          directory: Directory.Cache
-        })
-        // 分享文件让用户选择保存位置
-        await Share.share({
-          title: t('settings.exportData'),
-          url: result.uri,
-          dialogTitle: t('settings.exportData')
+          directory: Directory.Documents,
+          encoding: Encoding.UTF8
         })
+        toast.success(t('settings.exportSuccessWithPath', { path: result.uri }))
+        return
       } else {
         // Web 使用 file-saver
         saveAs(new Blob([jsonString], { type: 'application/json' }), fileName)