feat(consignment): 支持多数量拆分与份额级赠送，并对齐待抢单看板

- 匹配引擎支持一条库存按剩余数量拆给多张整单/拼单，份额数量、报酬、分配数量按实际占用计算
- 「我的寄卖」改为按占用单/份额一行 + 剩余库存行，卖家按 allocation/share/workOrder 定位确认加好友与提交凭证
- 解绑/撤销/超时按 allocation 精确回补，修复单绑定字段在多占用下被误清的问题
- 拼单好友赠送改为份额级 friend_added_at / gift_available_at（迁移 146），新增后台按份额确认加好友入口与寄卖赠送列
- 待抢单匹配看板改用新引擎：覆盖全部寄卖分类、拼单余量、精确/非精确/冲突明细，去掉手枪品类写死
- 发布押金改为该提报单全部售出/作废后才释放，避免多件库存分多单时提前退款
- 补齐集成测试与单测：拆分、多占用、份额级独立冷却与凭证、看板新旧引擎对齐

apps/frontend/src/pages/admin/panels/WorkOrdersPanel.tsx

@@ -52,6 +52,7 @@ import VideoPreview, { formatAcceptanceVideoDuration } from '@/components/files/
 import {
   acceptAdminWorkOrder,
   acceptAdminWorkOrderShare,
+  confirmAdminWorkOrderShareFriendAdded,
   acceptAdminWorkOrders,
   assignAdminWorkOrderToWorker,
   cancelAdminWorkOrder,
@@ -3734,6 +3735,22 @@ export default function WorkOrdersPanel() {
                           </Space>
                         ),
                       },
+                      {
+                        title: '寄卖赠送',
+                        width: 120,
+                        render: (_, share) => {
+                          if (!share.consignmentInventoryId) return '-'
+                          if (share.status === 'accepted') return <Tag color="green">已完成</Tag>
+                          if (share.status === 'submitted')
+                            return <Tag color="processing">待审核</Tag>
+                          if (!share.friendAddedAt) return <Tag>待加好友</Tag>
+                          const availableAt = Date.parse(String(share.giftAvailableAt || ''))
+                          if (Number.isFinite(availableAt) && availableAt > Date.now()) {
+                            return <Tag color="orange">冷却中</Tag>
+                          }
+                          return <Tag color="green">待赠送</Tag>
+                        },
+                      },
                       {
                         title: '问题',
                         width: 120,
@@ -3906,6 +3923,29 @@ export default function WorkOrdersPanel() {
                               )
                             ) : null
 
+                          const consignmentGiftAction =
+                            sharingOrder?.acceptanceMode === 'friend_gift' &&
+                            share.consignmentInventoryId &&
+                            share.status === 'joined' &&
+                            !share.friendAddedAt ? (
+                              <Button
+                                size="small"
+                                title="只确认该卖家的份额，其他卖家的冷却不受影响"
+                                onClick={() => {
+                                  void runAction(
+                                    () =>
+                                      confirmAdminWorkOrderShareFriendAdded(
+                                        sharingOrder.workOrderId,
+                                        share.shareId,
+                                      ),
+                                    '已确认该份额加好友，赠送冷却开始',
+                                  )
+                                }}
+                              >
+                                确认加好友
+                              </Button>
+                            ) : null
+
                           return (
                             <Space size={6} className="admin-share-actions">
                               {share.status === 'submitted' ? (
@@ -3969,6 +4009,7 @@ export default function WorkOrdersPanel() {
                                   撤份额
                                 </Button>
                               ) : null}
+                              {consignmentGiftAction}
                               {problemAction}
                             </Space>
                           )