fix(pickup): 优化线下提号列表操作列布局为单行紧凑展示

- 扩展操作列宽度至 430px
- 设置操作按钮为 nowrap 不换行紧凑排版，间距调整为 6px
- 解决操作按钮折行掉至第二行的问题

frontend/src/features/admin/views/AdminPickupView.css

@@ -115,8 +115,10 @@
 }
 .action-buttons {
   display: flex;
-  flex-wrap: wrap;
-  gap: 8px;
+  align-items: center;
+  flex-wrap: nowrap;
+  gap: 6px;
+  white-space: nowrap;
 }
 
 .amount-group-card {

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

@@ -697,7 +697,7 @@ function listingOptionLabel(item: AvailableListing) {
       <el-table-column label="创建时间" width="170">
         <template #default="{ row }">{{ formatDateTime(row.created_at) }}</template>
       </el-table-column>
-      <el-table-column label="操作" width="380" fixed="right">
+      <el-table-column label="操作" width="430" fixed="right">
         <template #default="{ row }">
           <div class="action-buttons">
             <RouterLink :to="adminPath(`pickup/${row.id}`)">