接单平台分类管理完善：抢单大厅分类筛选与分类 CRUD

- 抢单大厅新增分类 Tab 筛选（仅显示启用分类，支持按分类查询工单）
- 管理端分类面板支持编辑、启用/停用切换、删除（被工单/规则引用时禁止删除）
- 后端工单列表支持 categoryId 筛选，大厅接口返回分类列表

apps/backend/src/repositories/worker-platform-repo.ts

@@ -166,6 +166,7 @@ type ListInput = {
   status?: string
   keyword?: string
   workerId?: number
+  categoryId?: number
 }
 
 type ProductRuleListInput = {
@@ -912,6 +913,14 @@ export async function getWorkCategoryByKey(categoryKey: string): Promise<WorkCat
   return result.rows[0] || null
 }
 
+export async function getWorkCategoryById(categoryId: number | string): Promise<WorkCategoryRow | null> {
+  const result = await query<WorkCategoryRow>(
+    'SELECT * FROM work_categories WHERE id = $1 LIMIT 1',
+    [Number(categoryId)],
+  )
+  return result.rows[0] || null
+}
+
 export async function listWorkCategories(): Promise<WorkCategoryRow[]> {
   const result = await query<WorkCategoryRow>(
     `SELECT * FROM work_categories WHERE status = 'active' ORDER BY sort_order ASC, id ASC`,
@@ -946,6 +955,36 @@ export async function upsertWorkCategory(input: {
   return result.rows[0] || null
 }
 
+export async function countWorkCategoryUsages(categoryId: number | string): Promise<{
+  workOrderCount: number
+  productRuleCount: number
+}> {
+  const [orders, rules] = await Promise.all([
+    query<{ total: number }>(
+      'SELECT COUNT(*)::int AS total FROM work_orders WHERE category_id = $1',
+      [Number(categoryId)],
+    ),
+    query<{ total: number }>(
+      'SELECT COUNT(*)::int AS total FROM work_product_rules WHERE category_id = $1',
+      [Number(categoryId)],
+    ),
+  ])
+  return {
+    workOrderCount: Number(orders.rows[0]?.total || 0),
+    productRuleCount: Number(rules.rows[0]?.total || 0),
+  }
+}
+
+export async function deleteWorkCategory(
+  categoryId: number | string,
+): Promise<{ deleted: boolean }> {
+  const result = await query<{ id: number }>(
+    'DELETE FROM work_categories WHERE id = $1 RETURNING id',
+    [Number(categoryId)],
+  )
+  return { deleted: Boolean(result.rows[0]) }
+}
+
 export async function listWorkProductRules({
   enabled = null,
   keyword = '',
@@ -1123,8 +1162,14 @@ export async function listWorkOrders({
   status = '',
   keyword = '',
   workerId = 0,
+  categoryId = 0,
 }: ListInput = {}): Promise<{ items: WorkOrderRow[]; total: number }> {
-  const { whereClause, params } = buildWorkOrderWhere({ status, keyword, workerId })
+  const { whereClause, params } = buildWorkOrderWhere({
+    status,
+    keyword,
+    workerId,
+    categoryId,
+  })
   const totalResult = await query<{ total: number }>(
     `
       SELECT COUNT(*)::int AS total
@@ -1713,7 +1758,12 @@ function buildWorkerUserWhere({
   }
 }
 
-function buildWorkOrderWhere({ status = '', keyword = '', workerId = 0 }: ListInput) {
+function buildWorkOrderWhere({
+  status = '',
+  keyword = '',
+  workerId = 0,
+  categoryId = 0,
+}: ListInput) {
   const filters: string[] = []
   const params: unknown[] = []
   if (status) {
@@ -1730,6 +1780,10 @@ function buildWorkOrderWhere({ status = '', keyword = '', workerId = 0 }: ListIn
     params.push(workerId)
     filters.push(`wo.assigned_worker_id = $${params.length}`)
   }
+  if (categoryId) {
+    params.push(categoryId)
+    filters.push(`wo.category_id = $${params.length}`)
+  }
   return {
     whereClause: filters.length > 0 ? `WHERE ${filters.join(' AND ')}` : '',
     params,

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

@@ -4,6 +4,7 @@ import {
   acceptAdminWorkOrder,
   creditAdminWorkerWallet,
   createAdminMockWorkOrder,
+  deleteAdminWorkCategory,
   getAdminWorkerFinanceConfig,
   getAdminWorkerPlatformSummary,
   listAdminWorkerFinanceRequests,
@@ -92,6 +93,22 @@ router.post(
   }),
 )
 
+router.delete(
+  '/worker-platform/categories/:categoryId',
+  requireAdminRoles(['admin', 'operator']),
+  createJsonHandler((req) => deleteAdminWorkCategory(String(req.params.categoryId || '')), {
+    successMessage: '接单分类已删除',
+    errorMessage: '删除接单分类失败',
+    scope: '[admin/worker-platform/categories/:categoryId]',
+    audit: (_req, data) => ({
+      action: 'work_category_deleted',
+      targetType: 'work_category',
+      targetId: String(_req.params.categoryId || ''),
+      data: data && typeof data === 'object' ? (data as Record<string, unknown>) : {},
+    }),
+  }),
+)
+
 router.get(
   '/worker-platform/product-rules',
   requireAdminRoles(['admin', 'operator', 'support']),

apps/backend/src/services/worker-platform/worker-platform-service.ts

@@ -9,12 +9,15 @@ import {
   addWorkerWalletCredit,
   countWorkerAcceptedOrders,
   countWorkerActiveOrders,
+  countWorkCategoryUsages,
   createWorkOrder,
   createWorkOrderEvent,
   createWorkerFinanceRequest,
   createWorkerUser,
+  deleteWorkCategory,
   getWorkerFinanceRequestById,
   getWorkerFinanceRequestSummary,
+  getWorkCategoryById,
   getWorkerLevelById,
   getWorkerLevelByKey,
   getWorkerUserByInviteCode,
@@ -28,6 +31,7 @@ import {
   listPendingMaterialWorkOrdersByPlatformOrderId,
   listWorkerWalletLedgers,
   grabWorkOrder,
+  listWorkCategories,
   listWorkOrders,
   listWorkProductRules,
   listWorkerLevels,
@@ -627,17 +631,21 @@ export async function listWorkerHallOrders(query: JsonObject = {}, session: Work
   requireActiveWorkerSession(session)
   const page = normalizePage(query.page)
   const pageSize = normalizePageSize(query.pageSize)
+  const categoryId = normalizeOptionalId(query.categoryId)
   const { items, total } = await listWorkOrders({
     page,
     pageSize,
     status: WORK_ORDER_STATUS.OPEN,
     keyword: String(query.keyword || '').trim(),
+    categoryId: categoryId || 0,
   })
   const worker = await getRequiredWorker(session.workerId)
   const permissions = resolveWorkerPermissions(worker)
+  const categories = (await listWorkCategories()).map(mapWorkCategory)
   return {
     items: items.map((item) => mapWorkOrderForWorker(item, permissions)),
     pagination: { page, pageSize, total },
+    categories,
   }
 }
 
@@ -880,6 +888,28 @@ export async function saveAdminWorkCategory(payload: JsonObject = {}) {
   return { category: mapWorkCategory(category) }
 }
 
+export async function deleteAdminWorkCategory(categoryId: number | string) {
+  const category = await getWorkCategoryById(Number(categoryId))
+  if (!category) {
+    throw createHttpError('分类不存在', {
+      statusCode: 404,
+      errorCode: 'work_category_not_found',
+    })
+  }
+  const usages = await countWorkCategoryUsages(Number(categoryId))
+  if (usages.workOrderCount > 0 || usages.productRuleCount > 0) {
+    throw createHttpError(
+      `该分类已被 ${usages.workOrderCount} 个工单和 ${usages.productRuleCount} 条物品规则使用，无法删除，请先停用`,
+      {
+        statusCode: 409,
+        errorCode: 'work_category_in_use',
+      },
+    )
+  }
+  const { deleted } = await deleteWorkCategory(Number(categoryId))
+  return { deleted }
+}
+
 export async function saveAdminWorkerLevel(payload: JsonObject = {}) {
   const now = nowIso()
   const levelKey = String(payload.levelKey || payload.level_key || '').trim() || DEFAULT_LEVEL_KEY

apps/frontend/src/pages/admin/AdminWorkerPlatformPage.tsx

@@ -39,6 +39,7 @@ import {
   acceptAdminWorkOrder,
   createAdminMockWorkOrder,
   creditAdminWorkerWallet,
+  deleteAdminWorkCategory,
   fetchAdminWorkerFinanceConfig,
   fetchAdminWorkerFinanceRequests,
   fetchAdminWorkCategories,
@@ -1034,11 +1035,34 @@ function CategoriesPanel() {
   const { message } = App.useApp()
   const queryClient = useQueryClient()
   const [form] = Form.useForm()
+  const [editingCategory, setEditingCategory] = useState<WorkCategory | null>(null)
+  const [deletingCategory, setDeletingCategory] = useState<WorkCategory | null>(null)
   const categoriesQuery = useQuery({
     queryKey: ['admin-worker-platform-categories'],
     queryFn: () => fetchAdminWorkCategories(),
   })
 
+  async function refreshCategories() {
+    await queryClient.invalidateQueries({
+      queryKey: ['admin-worker-platform-categories'],
+    })
+  }
+
+  function startEdit(category: WorkCategory) {
+    setEditingCategory(category)
+    form.setFieldsValue({
+      categoryKey: category.categoryKey,
+      name: category.name,
+      sortOrder: category.sortOrder,
+      status: category.status,
+    })
+  }
+
+  function cancelEdit() {
+    setEditingCategory(null)
+    form.resetFields()
+  }
+
   async function saveCategory(values: {
     categoryKey: string
     name: string
@@ -1047,16 +1071,42 @@ function CategoriesPanel() {
   }) {
     try {
       await saveAdminWorkCategory(values)
-      message.success('分类已保存')
+      message.success(editingCategory ? '分类已更新' : '分类已保存')
-      form.resetFields()
+      cancelEdit()
-      await queryClient.invalidateQueries({
+      await refreshCategories()
-        queryKey: ['admin-worker-platform-categories'],
-      })
     } catch (error) {
       message.error(error instanceof Error ? error.message : '保存失败')
     }
   }
 
+  async function toggleCategory(category: WorkCategory) {
+    try {
+      await saveAdminWorkCategory({
+        categoryKey: category.categoryKey,
+        name: category.name,
+        sortOrder: category.sortOrder,
+        status: category.status === 'active' ? 'disabled' : 'active',
+      })
+      message.success(category.status === 'active' ? '分类已停用' : '分类已启用')
+      await refreshCategories()
+    } catch (error) {
+      message.error(error instanceof Error ? error.message : '操作失败')
+    }
+  }
+
+  async function submitDelete() {
+    if (!deletingCategory) return
+    try {
+      await deleteAdminWorkCategory(deletingCategory.categoryId)
+      message.success('分类已删除')
+      setDeletingCategory(null)
+      await refreshCategories()
+    } catch (error) {
+      message.error(error instanceof Error ? error.message : '删除失败')
+      setDeletingCategory(null)
+    }
+  }
+
   const columns: TableColumnsType<WorkCategory> = [
     { title: '分类', dataIndex: 'name' },
     { title: '标识', dataIndex: 'categoryKey' },
@@ -1070,11 +1120,28 @@ function CategoriesPanel() {
         </Tag>
       ),
     },
+    {
+      title: '操作',
+      width: 240,
+      render: (_, row) => (
+        <Space wrap>
+          <Button size="small" onClick={() => startEdit(row)}>
+            编辑
+          </Button>
+          <Button size="small" onClick={() => toggleCategory(row)}>
+            {row.status === 'active' ? '停用' : '启用'}
+          </Button>
+          <Button size="small" danger onClick={() => setDeletingCategory(row)}>
+            删除
+          </Button>
+        </Space>
+      ),
+    },
   ]
 
   return (
     <section className="platform-panel-stack">
-      <Card title="保存分类" bordered={false}>
+      <Card title={editingCategory ? `编辑分类：${editingCategory.name}` : '保存分类'} bordered={false}>
         <Form
           form={form}
           layout="inline"
@@ -1108,9 +1175,12 @@ function CategoriesPanel() {
             />
           </Form.Item>
           <Form.Item>
-            <Button type="primary" htmlType="submit">
+            <Space>
-              保存
+              <Button type="primary" htmlType="submit">
-            </Button>
+                保存
+              </Button>
+              {editingCategory ? <Button onClick={cancelEdit}>取消</Button> : null}
+            </Space>
           </Form.Item>
         </Form>
       </Card>
@@ -1123,6 +1193,19 @@ function CategoriesPanel() {
           pagination={false}
         />
       </Card>
+      <Modal
+        title="删除分类"
+        open={Boolean(deletingCategory)}
+        onOk={submitDelete}
+        onCancel={() => setDeletingCategory(null)}
+        okButtonProps={{ danger: true }}
+        okText="删除"
+        cancelText="取消"
+      >
+        <Typography.Text>
+          确定删除分类「{deletingCategory?.name}」？已引用该分类的工单和物品规则将无法删除，需先处理。
+        </Typography.Text>
+      </Modal>
     </section>
   )
 }

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

@@ -12,6 +12,7 @@ import {
   Pagination,
   Space,
   Spin,
+  Tabs,
   Tag,
   Typography,
 } from 'antd'
@@ -37,14 +38,16 @@ export default function WorkerHallPage() {
   const queryClient = useQueryClient()
   const [keywordInput, setKeywordInput] = useState('')
   const [keyword, setKeyword] = useState('')
+  const [categoryId, setCategoryId] = useState(0)
   const [page, setPage] = useState(1)
   const [pageSize, setPageSize] = useState(20)
   const [grabbingId, setGrabbingId] = useState(0)
   const [detailOrder, setDetailOrder] = useState<WorkOrder | null>(null)
 
   const ordersQuery = useQuery({
-    queryKey: ['worker-hall-orders', keyword, page, pageSize],
+    queryKey: ['worker-hall-orders', keyword, categoryId, page, pageSize],
-    queryFn: () => fetchWorkerHallOrders({ keyword, page, pageSize }),
+    queryFn: () =>
+      fetchWorkerHallOrders({ keyword, page, pageSize, categoryId: categoryId || undefined }),
     retry: false,
   })
 
@@ -94,6 +97,7 @@ export default function WorkerHallPage() {
 
   const orders = ordersQuery.data?.data.items || []
   const pagination = ordersQuery.data?.data.pagination
+  const categories = ordersQuery.data?.data.categories || []
   const worker = profileQuery.data?.data.worker
   const activeCount = hallSummaryQuery.data?.activeCount || 0
   const pendingAcceptanceCount = hallSummaryQuery.data?.pendingAcceptanceCount || 0
@@ -210,6 +214,24 @@ export default function WorkerHallPage() {
           ))}
         </div>
 
+        {categories.length > 0 ? (
+          <Tabs
+            size="small"
+            activeKey={String(categoryId)}
+            items={[
+              { key: '0', label: '全部' },
+              ...categories.map((category) => ({
+                key: String(category.categoryId),
+                label: category.name,
+              })),
+            ]}
+            onChange={(nextKey) => {
+              setCategoryId(Number(nextKey) || 0)
+              setPage(1)
+            }}
+          />
+        ) : null}
+
         {shouldWarn ? (
           <Alert
             className="worker-hall-warning"

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

@@ -1,4 +1,4 @@
-import { apiGet, apiPost } from '@/lib/http'
+import { apiDelete, apiGet, apiPost } from '@/lib/http'
 import type {
   WorkCategory,
   WorkOrder,
@@ -43,6 +43,12 @@ export function saveAdminWorkCategory(payload: {
   )
 }
 
+export function deleteAdminWorkCategory(categoryId: number) {
+  return apiDelete<{ deleted: boolean }>(
+    `/api/v1/admin/worker-platform/categories/${categoryId}`,
+  )
+}
+
 export function saveAdminWorkerLevel(payload: {
   levelKey: string
   name: string

apps/frontend/src/services/worker.ts

@@ -4,6 +4,7 @@ import type {
   UploadedFile,
   WorkOrder,
   WorkerFinanceRequest,
+  WorkerHallOrdersResponse,
   WorkerListResponse,
   WorkerLoginResponse,
   WorkerProfileResponse,
@@ -92,7 +93,7 @@ export function changeWorkerPassword(payload: {
 }
 
 export function fetchWorkerHallOrders(params?: Record<string, unknown>) {
-  return apiGet<WorkerListResponse<WorkOrder>>(
+  return apiGet<WorkerHallOrdersResponse>(
     '/api/v1/worker/hall/orders',
     params,
   )

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

@@ -224,6 +224,12 @@ export type WorkerListResponse<T> = {
   pagination: Pagination
 }
 
+export type WorkerHallOrdersResponse = {
+  items: WorkOrder[]
+  pagination: Pagination
+  categories: WorkCategory[]
+}
+
 export type CollectField = {
   key: string
   label: string