feat: 代理管理添加批量操作功能,用户管理添加到期时间列

- 代理管理页面添加批量解封、批量封禁、批量删除功能
- 后端添加代理批量操作API
- 用户管理添加独立的到期时间列
- 修复应用管理和日志记录页面顶部卡片图标颜色

frontend/src/plugins/i18n/zh.json

@@ -468,6 +468,15 @@
       "statusUpdateFailed": "状态更新失败",
       "deleteSuccess": "删除成功",
       "deleteFailed": "删除失败",
+      "batchUnbanBtn": "批量解封",
+      "batchBanBtn": "批量封禁",
+      "batchDeleteBtn": "批量删除",
+      "batchDeleteAgents": "批量删除代理",
+      "batchDeleteConfirm": "确定要删除选中的 {count} 个代理吗？此操作不可撤销。",
+      "batchDeleteSuccess": "批量删除成功",
+      "batchDeleteFailed": "批量删除失败",
+      "batchUpdateSuccess": "批量更新成功",
+      "batchUpdateFailed": "批量更新失败",
       "edit": {
         "title": "编辑代理",
         "description": "修改代理信息",
@@ -793,6 +802,7 @@
         "status": "状态",
         "deviceCount": "绑定设备",
         "balance": "余额",
+        "expiryAt": "到期时间",
         "lastLoginAt": "最后登录",
         "createdAt": "注册时间",
         "actions": "操作"