接单工单状态筛选支持多选

- 前端：状态筛选改为多选（Select mode=multiple），可一次筛选多个状态
- 后端：listWorkOrders 支持 statuses 数组查询（ANY 匹配），兼容旧单状态参数
- 批量验收入口仅在单独筛选待验收时显示，避免多选误操作

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

@@ -141,7 +141,7 @@ export default function WorkOrdersPanel() {
   const navigate = useNavigate()
   const queryClient = useQueryClient()
   const canEditRequirementFields = hasAdminRole('operator')
-  const [status, setStatus] = useState('')
+  const [statuses, setStatuses] = useState<string[]>([])
   const [keyword, setKeyword] = useState('')
   const [keywordInput, setKeywordInput] = useState('')
   const [workerId, setWorkerId] = useState<number | undefined>()
@@ -181,10 +181,27 @@ export default function WorkOrdersPanel() {
     unitReward?: number
     totalAmount?: number
   }>()
+  // 仅单独筛选「待验收」时提供批量验收入口（多选状态下不启用勾选，避免误操作）
+  const isPendingAcceptanceOnly =
+    statuses.length === 1 && statuses[0] === 'pending_acceptance'
 
   const ordersQuery = useQuery({
-    queryKey: ['admin-worker-platform-orders', status, keyword, workerId, page, pageSize],
-    queryFn: () => fetchAdminWorkOrders({ status, keyword, workerId, page, pageSize }),
+    queryKey: [
+      'admin-worker-platform-orders',
+      statuses.join(','),
+      keyword,
+      workerId,
+      page,
+      pageSize,
+    ],
+    queryFn: () =>
+      fetchAdminWorkOrders({
+        status: statuses.length > 0 ? statuses.join(',') : undefined,
+        keyword,
+        workerId,
+        page,
+        pageSize,
+      }),
   })
   const ordersPagination = ordersQuery.data?.data.pagination
   const categoriesQuery = useQuery({
@@ -208,7 +225,7 @@ export default function WorkOrdersPanel() {
 
   useEffect(() => {
     setSelectedAcceptanceOrderIds([])
-  }, [status, keyword, workerId, page, pageSize])
+  }, [statuses, keyword, workerId, page, pageSize])
 
   function openAssignModal(row: WorkOrder) {
     setAssignOrder(row)
@@ -441,7 +458,7 @@ export default function WorkOrdersPanel() {
   function clearOrderFilters() {
     setKeywordInput('')
     setKeyword('')
-    setStatus('')
+    setStatuses([])
     setWorkerId(undefined)
     setPage(1)
   }
@@ -854,17 +871,18 @@ export default function WorkOrdersPanel() {
               onPressEnter={searchOrders}
             />
             <Select
-              value={status}
-              style={{ width: 150 }}
-              options={[
-                { value: '', label: '全部状态' },
-                ...FILTERABLE_WORK_ORDER_STATUSES.map((item) => ({
-                  value: item,
-                  label: <Tag color={resolveStatusColor(item)}>{formatStatus(item)}</Tag>,
-                })),
-              ]}
-              onChange={(nextStatus) => {
-                setStatus(nextStatus)
+              mode="multiple"
+              allowClear
+              value={statuses}
+              placeholder="全部状态（可多选）"
+              style={{ minWidth: 220, maxWidth: 420 }}
+              maxTagCount="responsive"
+              options={FILTERABLE_WORK_ORDER_STATUSES.map((item) => ({
+                value: item,
+                label: <Tag color={resolveStatusColor(item)}>{formatStatus(item)}</Tag>,
+              }))}
+              onChange={(nextStatuses: string[]) => {
+                setStatuses(nextStatuses)
                 setPage(1)
               }}
             />
@@ -903,7 +921,7 @@ export default function WorkOrdersPanel() {
         title="接单工单"
         extra={
           <Space>
-            {status === 'pending_acceptance' ? (
+            {isPendingAcceptanceOnly ? (
               <Button
                 type="primary"
                 icon={<CheckOutlined />}
@@ -930,7 +948,7 @@ export default function WorkOrdersPanel() {
           dataSource={ordersQuery.data?.data.items || []}
           columns={columns}
           rowSelection={
-            status === 'pending_acceptance'
+            isPendingAcceptanceOnly
               ? {
                   selectedRowKeys: selectedAcceptanceOrderIds,
                   onChange: (selectedRowKeys) =>