feat(admin): add account privacy mode filter

frontend/src/i18n/locales/en.ts

@@ -1971,6 +1971,8 @@ export default {
         expiresAt: 'Expires At',
         actions: 'Actions'
       },
+      allPrivacyModes: 'All Privacy States',
+      privacyUnset: 'Unset',
       privacyTrainingOff: 'Training data sharing disabled',
       privacyCfBlocked: 'Blocked by Cloudflare, training may still be on',
       privacyFailed: 'Failed to disable training',

frontend/src/i18n/locales/zh.ts

@@ -2009,6 +2009,8 @@ export default {
         expiresAt: '过期时间',
         actions: '操作'
       },
+      allPrivacyModes: '全部Privacy状态',
+      privacyUnset: '未设置',
       privacyTrainingOff: '已关闭训练数据共享',
       privacyCfBlocked: '被 Cloudflare 拦截，训练可能仍开启',
       privacyFailed: '关闭训练数据共享失败',

frontend/src/views/admin/AccountsView.vue

@@ -581,7 +581,7 @@ const {
   handlePageSizeChange: baseHandlePageSizeChange
 } = useTableLoader<Account, any>({
   fetchFn: adminAPI.accounts.list,
-  initialParams: { platform: '', type: '', status: '', group: '', search: '' }
+  initialParams: { platform: '', type: '', status: '', privacy_mode: '', group: '', search: '' }
 })
 
 const {
@@ -758,6 +758,7 @@ const refreshAccountsIncrementally = async () => {
         platform?: string
         type?: string
         status?: string
+        privacy_mode?: string
         group?: string
         search?: string