fix(i18n):

去除兑换码批量修改重复的翻译 key

  PR #2613 与 PR #2615 各自独立添加了同一组批量修改 i18n key,
  导致 vue-tsc 报 TS1117 错误。保留 Title Case 一组,删除重复定义。

frontend/src/i18n/locales/en.ts

@@ -4194,22 +4194,6 @@ export default {
       codeDeleted: 'Redeem code deleted successfully',
       codesDeleted: 'Successfully deleted {count} unused code(s)',
       noUnusedCodes: 'No unused codes to delete',
-      selectedCount: '{count} selected',
-      clearSelection: 'Clear selection',
-      batchUpdate: 'Batch update',
-      batchUpdateTitle: 'Batch update redeem codes',
-      batchUpdateSuccess: 'Successfully updated {count} redeem code(s)',
-      failedToBatchUpdate: 'Failed to batch update redeem codes',
-      selectCodesFirst: 'Please select redeem codes first',
-      noBatchFieldsSelected: 'Select at least one field to update',
-      batchFields: {
-        status: 'Status',
-        expiresAt: 'Expires At',
-        notes: 'Notes',
-        group: 'Group'
-      },
-      batchNotesPlaceholder: 'Leave empty to clear notes',
-      clearGroup: 'Clear group',
       failedToLoad: 'Failed to load redeem codes',
       failedToGenerate: 'Failed to generate codes',
       failedToExport: 'Failed to export codes',

frontend/src/i18n/locales/zh.ts

@@ -4323,22 +4323,6 @@ export default {
       codeDeleted: '兑换码删除成功',
       codesDeleted: '成功删除 {count} 个未使用的兑换码',
       noUnusedCodes: '没有未使用的兑换码可删除',
-      selectedCount: '已选 {count} 个',
-      clearSelection: '清空选择',
-      batchUpdate: '批量修改',
-      batchUpdateTitle: '批量修改兑换码',
-      batchUpdateSuccess: '成功修改 {count} 个兑换码',
-      failedToBatchUpdate: '批量修改兑换码失败',
-      selectCodesFirst: '请先选择兑换码',
-      noBatchFieldsSelected: '请选择至少一个要修改的字段',
-      batchFields: {
-        status: '状态',
-        expiresAt: '过期时间',
-        notes: '备注',
-        group: '分组'
-      },
-      batchNotesPlaceholder: '留空将清空备注',
-      clearGroup: '清除分组',
       userPrefix: '用户 #{id}',
       failedToExport: '导出兑换码失败',
       failedToDeleteUnused: '删除未使用的兑换码失败',