Merge branch 'dev1023' into dev

解决 9 个冲突文件，并修复合并后遗留问题：

- 大厅候选集：采用 FIFO 窗口 + 全部置顶单 UNION（列表与抢单/拼单复核同源）
- 拼单份额：采用多次参与模型（每次参与 INSERT 新份额、requestId 幂等），
  取消后可重新参与；移除 HEAD 已废弃的单行 rejoin 逻辑与对应测试
- 工单迁移与成本中心 103–108 编号撞车：合并重写为
  109_work_order_share_participation / 110_work_order_hall_and_shop_indexes；
  临时库全量执行与重跑幂等验证通过（10 列、唯一键已删、7 个索引）
- 实时补丁：保留个性化字段、置顶重排、分页总数同步；补回 orderTimelineVisible 类型
- 打手大厅：保留 memo 组件化，移植「再拼一次」多份额按钮逻辑
- 全项目表格统一 PercentTable：WorkerOrderShareTable 改造

验证：backend typecheck/lint/check:sql/test(833 pass)、
frontend typecheck/lint/test(172 pass)/build 全绿。

apps/backend/src/routes/admin/worker-platform/acceptance.ts

@@ -7,7 +7,10 @@ import {
   cancelAdminWorkOrderSharing,
   deductAdminWorkOrderPendingDeposit,
   markAdminWorkOrderProblem,
+  markAdminWorkOrderShareProblem,
+  reduceAdminWorkOrderShareQuantity,
   resolveAdminProblemWorkOrder,
+  disposeAdminWorkOrderShareProblem,
 } from '../../../services/worker-platform/index.js'
 import { createJsonHandler, requireAdminPermission, requireAnyAdminPermission } from '../session.js'
 
@@ -148,7 +151,7 @@ router.post(
         req.adminSession?.displayName || req.adminSession?.username || '',
       ),
     {
-      successMessage: '拼单参与者已撤单，份数已退回大厅',
+      successMessage: '拼单参与者已撤单，押金已退还，母单状态保持不变',
       errorMessage: '撤销拼单参与者失败',
       scope: '[admin/worker-platform/orders/:workOrderId/shares/:shareId/cancel]',
       audit: (req, data) => ({
@@ -161,6 +164,84 @@ router.post(
   ),
 )
 
+// 按份数撤销部分份额：减少的份数自动回到大厅，押金保持原冻结额。
+router.post(
+  '/worker-platform/orders/:workOrderId/shares/:shareId/reduce-quantity',
+  requireAdminPermission('worker_order.cancel_share'),
+  createJsonHandler(
+    (req) =>
+      reduceAdminWorkOrderShareQuantity(
+        String(req.params.workOrderId || ''),
+        String(req.params.shareId || ''),
+        req.body || {},
+        req.adminSession?.displayName || req.adminSession?.username || '',
+      ),
+    {
+      successMessage: '已撤销指定份数，剩余份数继续履约',
+      errorMessage: '撤销拼单份额失败',
+      scope: '[admin/worker-platform/orders/:workOrderId/shares/:shareId/reduce-quantity]',
+      audit: (req, data) => ({
+        action: 'work_order_share_quantity_reduced',
+        targetType: 'work_order_share',
+        targetId: String(req.params.shareId || ''),
+        data: data && typeof data === 'object' ? (data as Record<string, unknown>) : {},
+      }),
+    },
+  ),
+)
+
+// 份额级问题单：只影响该份额持有人，母单状态不变。
+router.post(
+  '/worker-platform/orders/:workOrderId/shares/:shareId/problem',
+  requireAdminPermission('worker_order.manage_problem'),
+  createJsonHandler(
+    (req) =>
+      markAdminWorkOrderShareProblem(
+        String(req.params.workOrderId || ''),
+        String(req.params.shareId || ''),
+        req.body || {},
+        req.adminSession?.displayName || req.adminSession?.username || '',
+      ),
+    {
+      successMessage: '该份额已标记为问题单，仅影响该打手',
+      errorMessage: '标记份额问题单失败',
+      scope: '[admin/worker-platform/orders/:workOrderId/shares/:shareId/problem]',
+      audit: (req, data) => ({
+        action: 'work_order_share_marked_problem',
+        targetType: 'work_order_share',
+        targetId: String(req.params.shareId || ''),
+        data: data && typeof data === 'object' ? (data as Record<string, unknown>) : {},
+      }),
+    },
+  ),
+)
+
+// 份额级问题单处置：处置方式与母单一致，但只作用于这一份份额，母单状态不变。
+router.post(
+  '/worker-platform/orders/:workOrderId/shares/:shareId/problem/dispose',
+  requireAdminPermission('worker_order.manage_problem'),
+  createJsonHandler(
+    (req) =>
+      disposeAdminWorkOrderShareProblem(
+        String(req.params.workOrderId || ''),
+        String(req.params.shareId || ''),
+        req.body || {},
+        req.adminSession?.displayName || req.adminSession?.username || '',
+      ),
+    {
+      successMessage: '该份额问题单已处置',
+      errorMessage: '处置份额问题单失败',
+      scope: '[admin/worker-platform/orders/:workOrderId/shares/:shareId/problem/dispose]',
+      audit: (req, data) => ({
+        action: 'work_order_share_problem_disposed',
+        targetType: 'work_order_share',
+        targetId: String(req.params.shareId || ''),
+        data: data && typeof data === 'object' ? (data as Record<string, unknown>) : {},
+      }),
+    },
+  ),
+)
+
 router.post(
   '/worker-platform/orders/:workOrderId/deduct-pending-deposit',
   requireAdminPermission('worker_order.deduct_deposit'),