feat: P3阶段完成 - 全部模块迁移完成 🎉

## P3.1: 争议仲裁模块（disputes）✅
- API: disputes.ts
- 模块导出

## P3.2: 卖家中心模块（seller）✅
- Views: 4个页面
- Composables: usePublishForm, usePublishDraft
- 模块导出

## P3.3: 管理后台模块（admin）✅
- API: 8个文件（adminAuth, adminDashboard, adminUsers等）
- Views: 15个管理页面
- Composables: useAdminTable, useAdminPaginatedTable
- Components: 管理端组件
- 模块导出

---

## 🎉 Features 架构迁移全部完成！

### 最终统计
- ✅ P0: shared（基础设施）- 22个文件
- ✅ P1: wallet, chats, orders - 24个文件
- ✅ P2: listings, auth - 35个文件
- ✅ P3: seller, disputes, admin - 47个文件

**总计：** 9个模块，128个文件完成迁移

### 新架构
```
frontend/src/
├── features/          # 9个业务模块 ✅
│   ├── wallet/       ✅
│   ├── chats/        ✅
│   ├── orders/       ✅ (已重构)
│   ├── listings/     ✅
│   ├── auth/         ✅
│   ├── seller/       ✅
│   ├── disputes/     ✅
│   └── admin/        ✅
└── shared/           ✅
```

下一步：清理旧文件、更新路由配置

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

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

@@ -0,0 +1,114 @@
+<script setup lang="ts">
+import { ElMessage } from 'element-plus'
+import { ref } from 'vue'
+
+import { fetchAdminUsers, freezeAdminUser, unfreezeAdminUser, type AdminUserItem } from '@/api/adminUsers'
+import { useAdminPaginatedTable } from '@/composables/useAdminPaginatedTable'
+import { userStatusLabel } from '@/utils/statusLabels'
+import { formatDateTime } from '@/utils/time'
+
+const submitting = ref(false)
+const activeUser = ref<AdminUserItem | null>(null)
+const freezeReason = ref('')
+
+const { loading, data: users, total, currentPage, currentPageSize, load: loadUsers, handleSizeChange } = useAdminPaginatedTable<AdminUserItem>({
+  fetchFn: fetchAdminUsers,
+})
+
+function openFreeze(row: AdminUserItem) {
+  activeUser.value = row
+  freezeReason.value = ''
+}
+
+async function handleFreeze() {
+  if (!activeUser.value) return
+  submitting.value = true
+  try {
+    await freezeAdminUser(activeUser.value.id, freezeReason.value)
+    ElMessage.success('用户已冻结')
+    activeUser.value = null
+    await loadUsers()
+  } catch (error) {
+    ElMessage.error(readError(error, '冻结失败'))
+  } finally {
+    submitting.value = false
+  }
+}
+
+async function handleUnfreeze(row: AdminUserItem) {
+  submitting.value = true
+  try {
+    await unfreezeAdminUser(row.id)
+    ElMessage.success('用户已解冻')
+    await loadUsers()
+  } catch (error) {
+    ElMessage.error(readError(error, '解冻失败'))
+  } finally {
+    submitting.value = false
+  }
+}
+
+function readError(error: unknown, fallback: string) {
+  if (typeof error === 'object' && error && 'response' in error) {
+    const response = (error as { response?: { data?: { message?: string } } }).response
+    return response?.data?.message || fallback
+  }
+  return fallback
+}
+</script>
+
+<template>
+  <section class="page">
+    <div class="page-header-row">
+      <div class="page-header">
+        <p class="eyebrow">Users</p>
+        <h1>用户管理</h1>
+        <p>查看用户信息和状态，处理冻结与解冻。</p>
+      </div>
+      <el-button @click="loadUsers">刷新</el-button>
+    </div>
+
+    <el-table v-loading="loading" class="table-panel" :data="users">
+      <el-table-column prop="id" label="用户ID" width="80" />
+      <el-table-column prop="nickname" label="昵称" min-width="130" />
+      <el-table-column prop="phone" label="手机号" min-width="130" />
+      <el-table-column label="状态" width="110">
+        <template #default="{ row }">{{ userStatusLabel(row.status) }}</template>
+      </el-table-column>
+      <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="150">
+        <template #default="{ row }">
+          <el-button v-if="row.status === 'active'" size="small" type="danger" :loading="submitting" @click="openFreeze(row)">
+            冻结
+          </el-button>
+          <el-button v-else size="small" type="primary" :loading="submitting" @click="handleUnfreeze(row)">解冻</el-button>
+        </template>
+      </el-table-column>
+    </el-table>
+
+    <div class="pagination-wrap" v-if="total > 0">
+      <el-pagination
+        v-model:current-page="currentPage"
+        v-model:page-size="currentPageSize"
+        :total="total"
+        :page-sizes="[10, 20, 50, 100]"
+        layout="total, sizes, prev, pager, next"
+        @current-change="loadUsers"
+        @size-change="handleSizeChange"
+      />
+    </div>
+
+    <el-dialog :model-value="!!activeUser" title="冻结用户" width="560px" @update:model-value="activeUser = null">
+      <div v-if="activeUser" class="dialog-body">
+        <p><strong>{{ activeUser.phone }}</strong> · {{ activeUser.nickname }}</p>
+        <el-input v-model="freezeReason" type="textarea" :rows="4" placeholder="填写冻结原因，便于审计追踪" />
+      </div>
+      <template #footer>
+        <el-button @click="activeUser = null">取消</el-button>
+        <el-button type="danger" :loading="submitting" @click="handleFreeze">确认冻结</el-button>
+      </template>
+    </el-dialog>
+  </section>
+</template>