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/layouts/AdminLayout.vue

@@ -19,6 +19,7 @@ import {
   Service,
   Shop,
   Setting,
+  Switch,
   SwitchButton,
   Tickets,
   Tools,
@@ -89,6 +90,12 @@ const allNavGroups: NavGroup[] = [
         icon: Money,
         permission: 'order:close',
       },
+      {
+        label: '线下提号',
+        to: adminPath('pickup'),
+        icon: Switch,
+        permission: 'order:pickup',
+      },
       { label: '商品管理', to: adminPath('listings'), icon: Shop, permission: 'listing:view' },
       {
         label: '商品审核',

frontend/src/layouts/AppLayout.vue

@@ -16,6 +16,7 @@ import {
   Service,
   Shop,
   Star,
+  Switch,
   SwitchButton,
   Tickets,
   UserFilled,
@@ -48,6 +49,7 @@ const buyerServiceItems = [
 const sellerServiceItems = [
   { label: '发布商品', icon: CirclePlus, to: '/seller/listings/create' },
   { label: '我的商品', icon: Shop, to: '/seller/listings' },
+  { label: '提号记录', icon: Switch, to: '/seller/pickups' },
   { label: '提现/账单', icon: Wallet, to: '/wallet' },
 ]
 
@@ -886,27 +888,27 @@ async function handleSupportClick() {
 
 .dropdown-seller-grid {
   display: grid;
-  grid-template-columns: repeat(3, minmax(0, 1fr));
+  grid-template-columns: repeat(4, minmax(0, 1fr));
   gap: 8px;
 }
 
 .dropdown-seller-card {
   display: grid;
+  min-width: 0;
+  min-height: 74px;
   place-items: center;
-  align-items: center;
-  gap: 8px;
-  min-height: 72px;
-  padding: 10px 6px;
+  gap: 6px;
+  padding: 8px 4px;
   border-radius: 10px;
   background: #f8fafc;
   color: #475569;
-  font-size: 13px;
+  font-size: 12px;
   font-weight: 800;
   text-align: center;
 }
 
 .dropdown-seller-card .el-icon {
-  color: #94a3b8;
+  color: #ff6a00;
   font-size: 18px;
 }