feat: add user creation and ban/unban for agent backend

- Backend: POST /agent/users - create user with optional card recharge
- Backend: PUT /agent/users/:id/status - ban/unban user
- Frontend: add create user page for agent (select app, card type)
- Frontend: add ban/unban action in user list with confirm dialog
- Frontend: add actions dropdown column in user data table
- Fix: cloud variables records page i18n key (agent.finance.to -> agent.cloudVariables.records.to)
- Add i18n keys for agent user management (create, ban, unban)

frontend/src/plugins/i18n/zh.json

@@ -2117,6 +2117,7 @@
         "searchPlaceholder": "搜索记录...",
         "startDate": "开始日期",
         "endDate": "结束日期",
+        "to": "至",
         "total": "共 {count} 条记录",
         "totalRecords": "总记录数",
         "maxRecords": "最大 {count} 条",
@@ -2768,8 +2769,15 @@
       "lastLogin": "最后登录",
       "active": "正常",
       "totalUsers": "用户总数",
+      "addUser": "添加用户",
       "searchPlaceholder": "搜索用户名或邮箱...",
       "select": "选择",
+      "banUser": "封禁用户",
+      "unbanUser": "解封用户",
+      "banConfirm": "确定要封禁用户 {username} 吗？",
+      "unbanConfirm": "确定要解封用户 {username} 吗？",
+      "statusUpdateSuccess": "用户状态更新成功",
+      "statusUpdateFailed": "用户状态更新失败",
       "columns": {
         "username": "用户名",
         "email": "邮箱",
@@ -2781,6 +2789,42 @@
         "active": "正常",
         "disabled": "禁用",
         "banned": "封禁"
+      },
+      "create": {
+        "title": "创建用户",
+        "description": "在您的应用下创建新用户",
+        "basicInfo": "基本信息",
+        "basicInfoDesc": "填写用户基本信息",
+        "application": "所属应用",
+        "selectApplication": "请选择应用",
+        "username": "用户名",
+        "usernamePlaceholder": "请输入用户名",
+        "usernameRequired": "用户名不能为空",
+        "password": "密码",
+        "passwordPlaceholder": "请输入密码",
+        "passwordRequired": "密码不能为空",
+        "email": "邮箱",
+        "emailPlaceholder": "请输入邮箱（选填）",
+        "applicationRequired": "请选择所属应用",
+        "rechargeCard": "充值卡密",
+        "rechargeCardDesc": "创建时同时充值卡密（选填）",
+        "cardType": "卡密类型",
+        "selectCardType": "请选择卡密类型",
+        "selectApplicationFirst": "请先选择应用",
+        "noRecharge": "不充值",
+        "cardQuantity": "卡密数量",
+        "cardValue": "卡密面值",
+        "permanent": "永久",
+        "days": "天",
+        "points": "点数",
+        "preview": "预览",
+        "app": "应用",
+        "usernameLabel": "用户名",
+        "emailLabel": "邮箱",
+        "submit": "创建用户",
+        "cancel": "取消",
+        "success": "用户创建成功",
+        "failed": "用户创建失败"
       }
     },
     "apps": {
@@ -2930,7 +2974,8 @@
         "createdAt": "创建时间",
         "searchPlaceholder": "搜索记录...",
         "startDate": "开始日期",
-        "endDate": "结束日期"
+        "endDate": "结束日期",
+        "to": "至"
       }
     }
   },