feat: 打手分内部/外部，内部免审核；支持后台指派打手

- worker_users 新增 worker_type（internal/external，迁移 017）
- 内部打手提交验收后自动通过进入待打款（accepted+结算），外部打手保持后台审核
- 打手管理页支持设为内部/外部并显示类型标签
- 新增后台指派打手：未分配/待抢单工单可指定已注册打手，进入其我的订单并冻结押金
- 指派带审计与事件记录，校验打手状态/接单上限/余额押金

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

@@ -8,6 +8,7 @@ import {
   SearchOutlined,
   SendOutlined,
   TeamOutlined,
+  UserAddOutlined,
   WarningOutlined,
 } from '@ant-design/icons'
 import { useQuery, useQueryClient } from '@tanstack/react-query'
@@ -42,6 +43,7 @@ import ImagePreviewList from '@/components/files/ImagePreviewList'
 import PageHeader from '@/components/admin/PageHeader'
 import {
   acceptAdminWorkOrder,
+  assignAdminWorkOrderToWorker,
   createAdminMockWorkOrder,
   creditAdminWorkerWallet,
   deductAdminWorkOrderPendingDeposit,
@@ -125,6 +127,8 @@ export default function WorkOrdersPanel() {
   const [materialOrder, setMaterialOrder] = useState<WorkOrder | null>(null)
   const [materialScreenshots, setMaterialScreenshots] = useState<UploadedFile[]>([])
   const [sharingOrder, setSharingOrder] = useState<WorkOrder | null>(null)
+  const [assignOrder, setAssignOrder] = useState<WorkOrder | null>(null)
+  const [assignWorkerId, setAssignWorkerId] = useState<number | undefined>(undefined)
   const [editOrder, setEditOrder] = useState<WorkOrder | null>(null)
   const [deductOrder, setDeductOrder] = useState<WorkOrder | null>(null)
   const [problemForm] = Form.useForm()
@@ -162,6 +166,30 @@ export default function WorkOrdersPanel() {
     queryFn: () => fetchAdminWorkOrderSharing(Number(sharingOrder?.workOrderId)),
     enabled: Boolean(sharingOrder),
   })
+  const assignWorkersQuery = useQuery({
+    queryKey: ['admin-worker-platform-workers', 'active', 1, 200],
+    queryFn: () => fetchAdminWorkerUsers({ status: 'active', page: 1, pageSize: 200 }),
+    enabled: Boolean(assignOrder),
+  })
+
+  function openAssignModal(row: WorkOrder) {
+    setAssignOrder(row)
+    setAssignWorkerId(undefined)
+  }
+
+  async function submitAssign() {
+    if (!assignOrder || !assignWorkerId) return
+    const succeeded = await runAction(
+      () =>
+        assignAdminWorkOrderToWorker(assignOrder.workOrderId, {
+          workerId: assignWorkerId,
+        }),
+      '已指派打手',
+    )
+    if (!succeeded) return
+    setAssignOrder(null)
+    setAssignWorkerId(undefined)
+  }
 
   function openSharingConfigModal(row: WorkOrder) {
     setSharingOrder(row)
@@ -551,6 +579,11 @@ export default function WorkOrdersPanel() {
               拼单配置
             </Button>
           ) : null}
+          {['unassigned', 'open'].includes(row.status) ? (
+            <Button icon={<UserAddOutlined />} onClick={() => openAssignModal(row)}>
+              指派
+            </Button>
+          ) : null}
           {row.status === 'pending_material' ? (
             <Button
               icon={<FormOutlined />}
@@ -1142,6 +1175,41 @@ export default function WorkOrdersPanel() {
         </Form>
       </Modal>
 
+      <Modal
+        title={`指派打手 · ${assignOrder?.productName || ''}`}
+        open={Boolean(assignOrder)}
+        onCancel={() => {
+          setAssignOrder(null)
+          setAssignWorkerId(undefined)
+        }}
+        onOk={() => submitAssign()}
+        okText="确认指派"
+        okButtonProps={{ disabled: !assignWorkerId }}
+        destroyOnHidden
+        width={520}
+      >
+        <Space direction="vertical" size={12} className="full-width">
+          <Typography.Paragraph type="secondary">
+            指派后订单直接进入该打手的「我的订单」，不再出现在抢单大厅；所需押金按订单规则从打手余额冻结。
+          </Typography.Paragraph>
+          <Select
+            style={{ width: '100%' }}
+            placeholder="选择要指派的打手"
+            loading={assignWorkersQuery.isLoading}
+            showSearch
+            optionFilterProp="label"
+            value={assignWorkerId}
+            onChange={setAssignWorkerId}
+            options={(assignWorkersQuery.data?.data.items || []).map((worker) => ({
+              value: worker.workerId,
+              label: `${worker.displayName || worker.username}（${worker.username}）${
+                worker.workerType === 'internal' ? '· 内部' : ''
+              }`,
+            }))}
+          />
+        </Space>
+      </Modal>
+
       <Modal
         title={`拼单配置 · ${sharingOrder?.productName || ''}`}
         open={Boolean(sharingOrder)}

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

@@ -84,7 +84,7 @@ import { formatAdminDateTime } from '@/utils/admin-time'
 import { formatMoney, formatWorkerStatus } from './shared'
 
 export default function WorkersPanel() {
-  const { message } = App.useApp()
+  const { message, modal } = App.useApp()
   const queryClient = useQueryClient()
   const [status, setStatus] = useState('')
   const [page, setPage] = useState(1)
@@ -125,6 +125,30 @@ export default function WorkersPanel() {
     }
   }
 
+  function toggleWorkerType(worker: WorkerUser, workerType: 'internal' | 'external') {
+    const isInternal = workerType === 'internal'
+    modal.confirm({
+      title: isInternal ? '设为内部打手？' : '设为外部打手？',
+      content: isInternal
+        ? '内部打手提交验收后将免审核，直接进入待打款；请确认该打手可信。'
+        : '外部打手提交验收后需后台审核通过，才进入待打款。',
+      okText: '确认',
+      cancelText: '取消',
+      onOk: async () => {
+        try {
+          await reviewAdminWorkerUser(worker.workerId, {
+            status: worker.status,
+            workerType,
+          })
+          message.success('打手类型已更新')
+          await refreshWorkers()
+        } catch (error) {
+          message.error(error instanceof Error ? error.message : '操作失败')
+        }
+      },
+    })
+  }
+
   async function submitCredit(values: { amount?: number; note?: string }) {
     if (!creditWorker) return
     try {
@@ -164,9 +188,14 @@ export default function WorkersPanel() {
       minWidth: 220,
       render: (_, row) => (
         <div className="cell-stack">
-          <Typography.Text strong>
-            {row.displayName || row.username}
-          </Typography.Text>
+          <Space size={6} wrap>
+            <Typography.Text strong>
+              {row.displayName || row.username}
+            </Typography.Text>
+            <Tag color={row.workerType === 'internal' ? 'blue' : 'default'}>
+              {row.workerType === 'internal' ? '内部' : '外部'}
+            </Tag>
+          </Space>
           <Typography.Text type="secondary">{row.username}</Typography.Text>
         </div>
       ),
@@ -227,6 +256,11 @@ export default function WorkersPanel() {
           {row.status !== 'rejected' ? (
             <Button onClick={() => review(row, 'rejected')}>拒绝</Button>
           ) : null}
+          {row.workerType !== 'internal' ? (
+            <Button onClick={() => toggleWorkerType(row, 'internal')}>设为内部</Button>
+          ) : (
+            <Button onClick={() => toggleWorkerType(row, 'external')}>设为外部</Button>
+          )}
           <Button
             onClick={() => {
               setLevelWorker(row)

apps/frontend/src/pages/worker/WorkerProfilePage.tsx

@@ -456,6 +456,9 @@ export default function WorkerProfilePage() {
                 <Tag color={resolveWorkerStatusColor(worker.status)}>
                   {formatWorkerStatus(worker.status)}
                 </Tag>
+                <Tag color={worker.workerType === 'internal' ? 'blue' : 'default'}>
+                  {worker.workerType === 'internal' ? '内部打手' : '外部打手'}
+                </Tag>
                 <Tag>{worker.level?.name || '未分级'}</Tag>
               </Space>
             </Space>

apps/frontend/src/services/admin/worker-platform.ts

@@ -124,7 +124,7 @@ export function deleteAdminWorkProductRule(ruleId: number) {
 
 export function reviewAdminWorkerUser(
   workerId: number,
-  payload: { status: string; reviewNote?: string; levelId?: number },
+  payload: { status: string; reviewNote?: string; levelId?: number; workerType?: string },
 ) {
   return apiPost<{ worker: WorkerUser }>(
     `/api/v1/admin/worker-platform/workers/${workerId}/review`,
@@ -132,6 +132,16 @@ export function reviewAdminWorkerUser(
   )
 }
 
+export function assignAdminWorkOrderToWorker(
+  workOrderId: number,
+  payload: { workerId: number },
+) {
+  return apiPost<{ order: WorkOrder }>(
+    `/api/v1/admin/worker-platform/orders/${workOrderId}/assign`,
+    payload,
+  )
+}
+
 export function creditAdminWorkerWallet(
   workerId: number,
   payload: { amount: number; note?: string },

apps/frontend/src/types/worker-platform.ts

@@ -4,6 +4,7 @@ export type WorkerUser = {
   displayName: string
   phone: string
   status: string
+  workerType: string
   reviewNote: string
   inviteCode: string
   inviter: null | {