feat(pickup): 新增管理员线下提号功能

- 新建 admin_pickups 表独立于 rental_orders，不污染订单状态机与财务统计口径
- 提号中/已完成/已取消三态：创建锁定账号，完成时给卖家钱包加可用余额并下架 listing，取消解锁账号
- 完成时 listing 置 completed，复用现有 listingLockedForOwnerMutation 拦截再上架
- 管理端提号管理页（列表/创建/完成/取消/可提号账号搜索）+ 卖家端提号记录页
- 财务仪表盘新增线下提号独立统计块，与正常订单口径分离
- 钱包流水 label、状态标签、菜单入口同步补齐
- 优化卖家服务悬浮菜单为一行四个，尺寸与配色对齐买家服务

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

@@ -139,6 +139,19 @@ function rowDiffClass(row: FinanceDailyItem) {
       </div>
     </div>
 
+    <div v-if="dashboard?.pickup_summary" class="metric-grid pickup-grid">
+      <div class="metric-card pickup-card">
+        <span>线下提号结算</span>
+        <strong>{{ moneyCent(dashboard.pickup_summary.settled_amount_cent) }}</strong>
+        <small>{{ dashboard.pickup_summary.completed_count }} 笔已完成</small>
+      </div>
+      <div class="metric-card pickup-card">
+        <span>提号中</span>
+        <strong>{{ dashboard.pickup_summary.in_progress_count }}</strong>
+        <small>进行中笔数</small>
+      </div>
+    </div>
+
     <el-table v-loading="loading" class="table-panel" :data="dailyItems">
       <el-table-column prop="date" label="日期" width="130" />
       <el-table-column label="总流水" width="130">
@@ -193,6 +206,14 @@ function rowDiffClass(row: FinanceDailyItem) {
   font-weight: 700;
 }
 
+.pickup-grid {
+  margin-top: 12px;
+}
+
+.pickup-card {
+  border-left: 3px solid #6366f1;
+}
+
 .generated-at {
   margin: 12px 0 0;
   color: #64748b;