feat: 全部列表页统一分页 + WorkProcess集成现有服务

- WorkProcess/Termination/Evidence/Contracts/Policies/Templates 添加 Pagination 组件
- 后端 getDrafts/getPolicies/enterprise-template 路由添加分页支持（可选参数，向后兼容）
- work-process.service CONFIRM case 修正：移除不存在的 probationEndDate 字段
- 新增 migration_add_three_tables.sql 增量迁移文件

frontend/src/pages/Termination.tsx

@@ -9,6 +9,7 @@ import Card from '../components/ui/Card'
 import Button from '../components/ui/Button'
 import { Input, Label, Select } from '../components/ui/Input'
 import EmptyState from '../components/ui/EmptyState'
+import Pagination from '../components/ui/Pagination'
 
 // 金额格式化：保留两位小数 + 千分位
 const fmt = (n: number) => (n || 0).toLocaleString('zh-CN', { minimumFractionDigits: 2, maximumFractionDigits: 2 })
@@ -119,6 +120,8 @@ export default function Termination() {
   const [filterStatus, setFilterStatus] = useState('')
   const [filterDepartment, setFilterDepartment] = useState('')
   const [searchTerm, setSearchTerm] = useState('')
+  const [draftPage, setDraftPage] = useState(1)
+  const [draftPageSize, setDraftPageSize] = useState(20)
 
   const { data: employees } = useQuery<RosterEmployee[]>({
     queryKey: ['roster-for-termination'],
@@ -250,10 +253,10 @@ export default function Termination() {
   })
 
   // 草稿列表
-  const { data: drafts, refetch: refetchDrafts } = useQuery({
-    queryKey: ['termination-drafts', filterStatus, filterDepartment, searchTerm],
+  const { data: draftsData, refetch: refetchDrafts } = useQuery({
+    queryKey: ['termination-drafts', filterStatus, filterDepartment, searchTerm, draftPage, draftPageSize],
     queryFn: async () => {
-      const params: any = {}
+      const params: any = { page: draftPage, pageSize: draftPageSize }
       if (filterStatus) params.status = filterStatus
       if (filterDepartment) params.department = filterDepartment
       if (searchTerm) params.search = searchTerm
@@ -262,6 +265,8 @@ export default function Termination() {
     },
     enabled: view === 'list',
   })
+  const drafts = draftsData?.items || []
+  const draftsTotal = draftsData?.total || 0
 
   // 草稿详情
   const { data: draftDetail } = useQuery({
@@ -823,6 +828,13 @@ export default function Termination() {
               </table>
             </div>
           )}
+          <Pagination
+            page={draftPage}
+            pageSize={draftPageSize}
+            total={draftsTotal}
+            onPageChange={setDraftPage}
+            onPageSizeChange={(s) => { setDraftPageSize(s); setDraftPage(1) }}
+          />
         </Card>
         </>
       )}