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/router/routes.ts

@@ -444,6 +444,12 @@ const routes: RouteRecordRaw[] = [
         component: () => import('@/pages/agent/users/index.vue'),
         meta: { title: '用户管理 - 代理商后台' },
       },
+      {
+        path: 'users/create',
+        name: 'AgentUserCreate',
+        component: () => import('@/pages/agent/users/create.vue'),
+        meta: { title: '创建用户 - 代理商后台' },
+      },
       {
         path: 'finance',
         name: 'AgentFinance',