后台增加撤销用户实名功能

实名姓名与收款账户不一致会导致收款码登记失败，新增后台撤销实名能力：
- 新增 user:revoke_realname 权限，授予超级管理员与运营角色
- 撤销时重置用户实名状态为未认证并删除实名记录，使其可重新认证，写入审计日志
- 用户管理页新增实名状态列与"撤销实名"操作（含原因弹窗）

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

frontend/src/features/admin/views/AdminUsersView.vue

@@ -7,6 +7,7 @@ import { reactive, ref } from 'vue'
 import {
   fetchAdminUsers,
   freezeAdminUser,
+  revokeAdminUserRealname,
   setAdminUserDepositFreeQuota,
   unfreezeAdminUser,
   type AdminUserItem,
@@ -14,14 +15,16 @@ import {
 } from '@/features/admin/api/adminUsers'
 import { centToYuan, formatCent, yuanToCent } from '@/shared/utils/money'
 import { useAdminPaginatedTable } from '@/features/admin/composables/useAdminPaginatedTable'
-import { userStatusLabel } from '@/shared/utils/statusLabels'
+import { realnameStatusLabel, userStatusLabel } from '@/shared/utils/statusLabels'
 import { formatDateTime } from '@/shared/utils/time'
 import AdminTablePagination from '../components/AdminTablePagination.vue'
 
 const submitting = ref(false)
 const activeUser = ref<AdminUserItem | null>(null)
 const quotaUser = ref<AdminUserItem | null>(null)
+const realnameUser = ref<AdminUserItem | null>(null)
 const freezeReason = ref('')
+const revokeRealnameReason = ref('')
 const quotaAmount = ref(0)
 
 const filters = reactive<AdminUserQuery>({
@@ -104,6 +107,26 @@ async function handleUnfreeze(row: AdminUserItem) {
   }
 }
 
+function openRevokeRealname(row: AdminUserItem) {
+  realnameUser.value = row
+  revokeRealnameReason.value = ''
+}
+
+async function handleRevokeRealname() {
+  if (!realnameUser.value) return
+  submitting.value = true
+  try {
+    await revokeAdminUserRealname(realnameUser.value.id, revokeRealnameReason.value)
+    ElMessage.success('已撤销实名，用户可重新认证')
+    realnameUser.value = null
+    await loadUsers()
+  } catch (error) {
+    ElMessage.error(readError(error, '撤销实名失败'))
+  } finally {
+    submitting.value = false
+  }
+}
+
 function moneyCent(value: number | string | undefined) {
   return formatCent(Number(value || 0))
 }
@@ -161,6 +184,9 @@ function moneyCent(value: number | string | undefined) {
       <el-table-column label="状态" width="110">
         <template #default="{ row }">{{ userStatusLabel(row.status) }}</template>
       </el-table-column>
+      <el-table-column label="实名状态" width="110">
+        <template #default="{ row }">{{ realnameStatusLabel(row.realname_status) }}</template>
+      </el-table-column>
       <el-table-column label="免押额度" width="130">
         <template #default="{ row }">¥{{ moneyCent(row.deposit_free_quota_cent) }}</template>
       </el-table-column>
@@ -173,9 +199,18 @@ function moneyCent(value: number | string | undefined) {
       <el-table-column label="注册时间" min-width="180">
         <template #default="{ row }">{{ formatDateTime(row.created_at) }}</template>
       </el-table-column>
-      <el-table-column label="操作" width="220">
+      <el-table-column label="操作" width="320">
         <template #default="{ row }">
           <el-button size="small" @click="openDepositQuota(row)">免押</el-button>
+          <el-button
+            v-if="row.realname_status !== 'unverified'"
+            size="small"
+            type="warning"
+            :loading="submitting"
+            @click="openRevokeRealname(row)"
+          >
+            撤销实名
+          </el-button>
           <el-button
             v-if="row.status === 'active'"
             size="small"
@@ -229,6 +264,36 @@ function moneyCent(value: number | string | undefined) {
       </template>
     </el-dialog>
 
+    <el-dialog
+      :model-value="!!realnameUser"
+      title="撤销实名认证"
+      width="560px"
+      @update:model-value="realnameUser = null"
+    >
+      <div v-if="realnameUser" class="dialog-body">
+        <p>
+          <strong>{{ realnameUser.phone }}</strong> · {{ realnameUser.nickname }}
+        </p>
+        <el-alert
+          type="warning"
+          :closable="false"
+          title="撤销后该用户实名信息将被清除，需重新完成实名认证后才能下单与登记收款码。"
+        />
+        <el-input
+          v-model="revokeRealnameReason"
+          type="textarea"
+          :rows="4"
+          placeholder="填写撤销原因（如实名姓名与收款账户不一致），便于审计追踪"
+        />
+      </div>
+      <template #footer>
+        <el-button @click="realnameUser = null">取消</el-button>
+        <el-button type="warning" :loading="submitting" @click="handleRevokeRealname"
+          >确认撤销</el-button
+        >
+      </template>
+    </el-dialog>
+
     <el-dialog
       :model-value="!!quotaUser"
       title="设置免押额度"