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/AdminDashboardView.vue

@@ -0,0 +1,494 @@
+<script setup lang="ts">
+import {
+  Bell,
+  ChatDotRound,
+  Document,
+  Grid,
+  Loading,
+  Operation,
+  Refresh,
+  ScaleToOriginal,
+  ShoppingBag,
+  Shop,
+  Tickets,
+  User,
+  Wallet,
+  Warning
+} from '@element-plus/icons-vue'
+import { fetchAdminDashboard, type AdminDashboard } from '@/api/adminDashboard'
+import { useAdminTable } from '@/composables/useAdminTable'
+import { useMoney } from '@/composables/useMoney'
+import { disputeStatusLabel, orderStatusLabel } from '@/utils/statusLabels'
+import { formatDateTime } from '@/utils/time'
+
+const money = useMoney()
+
+const { loading, error, data: dashboard, load: loadDashboard } = useAdminTable<AdminDashboard>({
+  fetchFn: fetchAdminDashboard,
+})
+</script>
+
+<template>
+  <section class="page">
+    <div class="page-header-row">
+      <div class="page-header">
+        <p class="eyebrow">Dashboard</p>
+        <h1>后台仪表盘</h1>
+        <p>实时监控平台运营数据，快速处理待办事项。</p>
+      </div>
+      <el-button @click="loadDashboard" :loading="loading">
+        <el-icon><Refresh /></el-icon>
+        刷新数据
+      </el-button>
+    </div>
+
+    <!-- 加载状态 -->
+    <div v-if="loading && !dashboard" class="loading-state">
+      <el-icon class="is-loading"><Loading /></el-icon>
+      <span>加载中...</span>
+    </div>
+
+    <!-- 错误状态 -->
+    <div v-else-if="error && !dashboard" class="error-state">
+      <el-icon><Warning /></el-icon>
+      <span>{{ error }}</span>
+      <el-button @click="loadDashboard" type="primary">重试</el-button>
+    </div>
+
+    <!-- 核心指标卡片 -->
+    <div v-if="dashboard" class="metric-grid dashboard-metrics">
+      <div class="metric-card metric-card--primary">
+        <div class="metric-icon">
+          <el-icon><User /></el-icon>
+        </div>
+        <div class="metric-content">
+          <span>用户总数</span>
+          <strong>{{ dashboard.metrics.total_users }}</strong>
+          <small>实名 {{ dashboard.metrics.verified_users }} 人</small>
+        </div>
+      </div>
+      <div class="metric-card metric-card--success">
+        <div class="metric-icon">
+          <el-icon><ShoppingBag /></el-icon>
+        </div>
+        <div class="metric-content">
+          <span>发布商品</span>
+          <strong>{{ dashboard.metrics.total_listings }}</strong>
+          <small>已上架 {{ dashboard.metrics.published_listings }} 个</small>
+        </div>
+      </div>
+      <div class="metric-card metric-card--warning">
+        <div class="metric-icon">
+          <el-icon><Document /></el-icon>
+        </div>
+        <div class="metric-content">
+          <span>订单总数</span>
+          <strong>{{ dashboard.metrics.total_orders }}</strong>
+          <small>使用中 {{ dashboard.metrics.renting_orders }} 个</small>
+        </div>
+      </div>
+      <div class="metric-card metric-card--danger">
+        <div class="metric-icon">
+          <el-icon><Wallet /></el-icon>
+        </div>
+        <div class="metric-content">
+          <span>今日流水</span>
+          <strong>{{ money(dashboard.metrics.today_ledger_amount) }}</strong>
+          <small>今日订单 {{ dashboard.metrics.today_orders }} 个</small>
+        </div>
+      </div>
+    </div>
+
+    <!-- 待处理事项 & 快捷入口 -->
+    <div v-if="dashboard" class="dashboard-panels">
+      <div class="dashboard-panel">
+        <div class="panel-header">
+          <h2>
+            <el-icon><Bell /></el-icon>
+            待处理事项
+          </h2>
+          <el-tag type="warning" effect="dark" round>
+            {{ dashboard.pending.disputes + dashboard.pending.listing_reviews + dashboard.pending.pending_handoffs + dashboard.pending.pending_return_confirms }} 项
+          </el-tag>
+        </div>
+        <div class="pending-list">
+          <RouterLink class="pending-row" to="/admin/disputes">
+            <div class="pending-info">
+              <span class="pending-label">待仲裁申诉</span>
+              <span class="pending-desc">需要处理的用户争议</span>
+            </div>
+            <strong :class="{ 'has-pending': dashboard.pending.disputes > 0 }">{{ dashboard.pending.disputes }}</strong>
+          </RouterLink>
+          <RouterLink class="pending-row" to="/admin/listings/review">
+            <div class="pending-info">
+              <span class="pending-label">待审核商品</span>
+              <span class="pending-desc">新提交的商品审核</span>
+            </div>
+            <strong :class="{ 'has-pending': dashboard.pending.listing_reviews > 0 }">{{ dashboard.pending.listing_reviews }}</strong>
+          </RouterLink>
+          <div class="pending-row">
+            <div class="pending-info">
+              <span class="pending-label">待交接订单</span>
+              <span class="pending-desc">等待卖家交接</span>
+            </div>
+            <strong :class="{ 'has-pending': dashboard.pending.pending_handoffs > 0 }">{{ dashboard.pending.pending_handoffs }}</strong>
+          </div>
+          <div class="pending-row">
+            <div class="pending-info">
+              <span class="pending-label">待结账确认</span>
+              <span class="pending-desc">等待双方确认</span>
+            </div>
+            <strong :class="{ 'has-pending': dashboard.pending.pending_return_confirms > 0 }">{{ dashboard.pending.pending_return_confirms }}</strong>
+          </div>
+        </div>
+      </div>
+
+      <div class="dashboard-panel">
+        <div class="panel-header">
+          <h2>
+            <el-icon><Grid /></el-icon>
+            快捷入口
+          </h2>
+        </div>
+        <div class="quick-links">
+          <RouterLink class="quick-link" to="/admin/users">
+            <el-icon><User /></el-icon>
+            <span>用户管理</span>
+          </RouterLink>
+          <RouterLink class="quick-link" to="/admin/orders">
+            <el-icon><Tickets /></el-icon>
+            <span>订单管理</span>
+          </RouterLink>
+          <RouterLink class="quick-link" to="/admin/disputes">
+            <el-icon><ScaleToOriginal /></el-icon>
+            <span>仲裁中心</span>
+          </RouterLink>
+          <RouterLink class="quick-link" to="/admin/listings">
+            <el-icon><Shop /></el-icon>
+            <span>商品管理</span>
+          </RouterLink>
+          <RouterLink class="quick-link" to="/admin/chats">
+            <el-icon><ChatDotRound /></el-icon>
+            <span>客服群聊</span>
+          </RouterLink>
+          <RouterLink class="quick-link" to="/admin/system-configs">
+            <el-icon><Operation /></el-icon>
+            <span>系统配置</span>
+          </RouterLink>
+        </div>
+      </div>
+    </div>
+
+    <!-- 最近订单 -->
+    <div v-if="dashboard" class="dashboard-section">
+      <h2 class="section-title">
+        <el-icon><Tickets /></el-icon>
+        最近订单
+      </h2>
+      <el-table class="table-panel" :data="dashboard.recent_orders">
+        <el-table-column prop="order_no" label="订单号" min-width="210" />
+        <el-table-column prop="title" label="商品名称" min-width="170" />
+        <el-table-column label="状态" width="120">
+          <template #default="{ row }">
+            <el-tag :type="row.status === 'completed' ? 'success' : row.status === 'renting' ? 'primary' : 'warning'" size="small" effect="plain">
+              {{ orderStatusLabel(row.status) }}
+            </el-tag>
+          </template>
+        </el-table-column>
+        <el-table-column prop="rent_amount" label="金额" width="100">
+          <template #default="{ row }">
+            <span class="amount">{{ money(row.rent_amount) }}</span>
+          </template>
+        </el-table-column>
+        <el-table-column label="创建时间" min-width="180">
+          <template #default="{ row }">{{ formatDateTime(row.created_at) }}</template>
+        </el-table-column>
+      </el-table>
+    </div>
+
+    <!-- 最近申诉 -->
+    <div v-if="dashboard && dashboard.recent_disputes.length > 0" class="dashboard-section">
+      <h2 class="section-title">
+        <el-icon><Warning /></el-icon>
+        最近申诉
+      </h2>
+      <el-table class="table-panel" :data="dashboard.recent_disputes">
+        <el-table-column prop="order_no" label="订单号" min-width="210" />
+        <el-table-column prop="title" label="商品名称" min-width="170" />
+        <el-table-column prop="type" label="申诉类型" width="140" />
+        <el-table-column label="状态" width="120">
+          <template #default="{ row }">
+            <el-tag :type="row.status === 'resolved' ? 'success' : 'danger'" size="small" effect="plain">
+              {{ disputeStatusLabel(row.status) }}
+            </el-tag>
+          </template>
+        </el-table-column>
+        <el-table-column label="创建时间" min-width="180">
+          <template #default="{ row }">{{ formatDateTime(row.created_at) }}</template>
+        </el-table-column>
+        <el-table-column label="操作" width="100">
+          <template #default>
+            <RouterLink to="/admin/disputes">
+              <el-button size="small" type="primary" link>处理</el-button>
+            </RouterLink>
+          </template>
+        </el-table-column>
+      </el-table>
+    </div>
+  </section>
+</template>
+
+<style scoped>
+.loading-state {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  gap: 16px;
+  min-height: 300px;
+  color: #8f9bba;
+}
+
+.loading-state .el-icon {
+  font-size: 40px;
+  color: #4f7cff;
+}
+
+.loading-state span {
+  font-size: 14px;
+}
+
+.error-state {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  gap: 16px;
+  min-height: 300px;
+  color: #ef4444;
+}
+
+.error-state .el-icon {
+  font-size: 40px;
+}
+
+.error-state span {
+  font-size: 14px;
+  color: #8f9bba;
+}
+
+.metric-card {
+  display: flex;
+  align-items: center;
+  gap: 16px;
+  padding: 20px;
+}
+
+.metric-icon {
+  width: 48px;
+  height: 48px;
+  border-radius: 12px;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  font-size: 22px;
+  flex-shrink: 0;
+}
+
+.metric-card--primary .metric-icon {
+  background: rgba(79, 124, 255, 0.1);
+  color: #4f7cff;
+}
+
+.metric-card--success .metric-icon {
+  background: rgba(16, 185, 129, 0.1);
+  color: #10b981;
+}
+
+.metric-card--warning .metric-icon {
+  background: rgba(245, 158, 11, 0.1);
+  color: #f59e0b;
+}
+
+.metric-card--danger .metric-icon {
+  background: rgba(239, 68, 68, 0.1);
+  color: #ef4444;
+}
+
+.metric-content {
+  flex: 1;
+  min-width: 0;
+}
+
+.metric-content span {
+  font-size: 13px;
+  color: #8f9bba;
+}
+
+.metric-content strong {
+  display: block;
+  margin-top: 4px;
+  font-size: 28px;
+  font-weight: 800;
+  color: #1b2559;
+  line-height: 1;
+}
+
+.metric-content small {
+  display: block;
+  margin-top: 8px;
+  font-size: 12px;
+  color: #a3aed0;
+}
+
+.panel-header {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  margin-bottom: 20px;
+}
+
+.panel-header h2 {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  margin: 0;
+  font-size: 16px;
+  font-weight: 700;
+  color: #1b2559;
+}
+
+.panel-header h2 .el-icon {
+  color: #4f7cff;
+}
+
+.pending-list {
+  display: flex;
+  flex-direction: column;
+  gap: 4px;
+}
+
+.pending-row {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  padding: 14px 16px;
+  border-radius: 10px;
+  text-decoration: none;
+  transition: background 0.2s;
+}
+
+.pending-row:hover {
+  background: #f8f9fe;
+}
+
+.pending-info {
+  display: flex;
+  flex-direction: column;
+  gap: 4px;
+}
+
+.pending-label {
+  font-size: 14px;
+  font-weight: 600;
+  color: #1b2559;
+}
+
+.pending-desc {
+  font-size: 12px;
+  color: #a3aed0;
+}
+
+.pending-row strong {
+  font-size: 20px;
+  font-weight: 800;
+  color: #10b981;
+  min-width: 32px;
+  text-align: center;
+}
+
+.pending-row strong.has-pending {
+  color: #ef4444;
+}
+
+.quick-links {
+  display: grid;
+  grid-template-columns: repeat(3, 1fr);
+  gap: 12px;
+}
+
+.quick-link {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  gap: 10px;
+  padding: 20px 16px;
+  border-radius: 12px;
+  background: #f8f9fe;
+  text-decoration: none;
+  transition: all 0.2s;
+}
+
+.quick-link:hover {
+  background: #eef2ff;
+  transform: translateY(-2px);
+}
+
+.quick-link .el-icon {
+  font-size: 24px;
+  color: #4f7cff;
+}
+
+.quick-link span {
+  font-size: 13px;
+  font-weight: 600;
+  color: #1b2559;
+}
+
+.dashboard-section {
+  margin-top: 28px;
+}
+
+.section-title {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  margin: 0 0 16px;
+  font-size: 16px;
+  font-weight: 700;
+  color: #1b2559;
+}
+
+.section-title .el-icon {
+  color: #4f7cff;
+}
+
+.amount {
+  font-weight: 700;
+  color: #1b2559;
+}
+
+@media (max-width: 768px) {
+  .quick-links {
+    grid-template-columns: repeat(2, 1fr);
+  }
+}
+
+@media (max-width: 480px) {
+  .metric-card {
+    flex-direction: column;
+    align-items: flex-start;
+    gap: 12px;
+  }
+
+  .metric-icon {
+    width: 40px;
+    height: 40px;
+    font-size: 18px;
+  }
+
+  .metric-content strong {
+    font-size: 24px;
+  }
+}
+</style>