refactor: 全量迁移前端 API 调用到统一 api-services 服务层

- 新建 api-services-raw.ts 导出原始 axios 方法供特殊端点使用
- 完成 api-services.ts 全领域覆盖（auth/employee/roster/dashboard/attendance/payroll/socialInsurance/commercialInsurance/termination/policies/evidence/audit/calendar/companyFiles/notifications/settings/ai/platform/portal/survey/search）
- 迁移所有 47+ 页面文件：pages/、pages/roster/、pages/portal/、pages/platform/、pages/auth/、pages/dashboard/、pages/compliance/
- 移除所有直接 import api from '../../lib/api' 引用
- 修复 Termination.tsx / WorkProcess.tsx 中 string|null 类型错误
- 修复 SocialInsurance.tsx 中 api-services-raw delete 导入名
- 修复 PlatformLogin.tsx 变量遮蔽问题
- tsc --noEmit 零错误，vite build 成功

frontend/src/pages/Termination.tsx

@@ -5,8 +5,7 @@ import { AlertTriangle, Check, ChevronRight, ChevronLeft, Shield, Info, Calculat
 import { Stepper } from '../components/ui/Stepper'
 import { InlineAlert } from '../components/ui/InlineAlert'
 import jsPDF from 'jspdf'
-import api from '../lib/api'
-import { rosterApi } from '../lib/api-services'
+import { rosterApi, terminationApi } from '../lib/api-services'
 import { useAuthStore } from '../store/authStore'
 import Card from '../components/ui/Card'
 import Button from '../components/ui/Button'
@@ -236,8 +235,7 @@ export default function Termination() {
   const { data: profile } = useQuery<EmployeeProfile>({
     queryKey: ['employee-profile', employeeId],
     queryFn: async () => {
-      const res = await api.get(`/roster/${employeeId}/profile`) as any
-      return res.data
+      return await rosterApi.profile(employeeId)
     },
     enabled: !!employeeId,
   })
@@ -305,8 +303,7 @@ export default function Termination() {
   }[]>({
     queryKey: ['checklist', reason, employeeId],
     queryFn: async () => {
-      const res = await api.get(`/termination/checklist/${reason}`, { params: { employeeId } }) as any
-      return res.data
+      return await terminationApi.checklist(reason, employeeId)
     },
     enabled: !!reason && !!employeeId && step >= 2,
   })
@@ -326,14 +323,13 @@ export default function Termination() {
   const { data: riskAssessment } = useQuery<{ level: string; warnings: string[] }>({
     queryKey: ['assess', employeeId, reason],
     queryFn: async () => {
-      const res = await api.get(`/termination/assess/${employeeId}`, { params: { reason } }) as any
-      return res.data
+      return await terminationApi.assess(employeeId, reason)
     },
     enabled: !!employeeId && !!reason && step >= 1,
   })
 
   const saveMutation = useMutation({
-    mutationFn: (data: any) => api.post('/termination', data),
+    mutationFn: (data: any) => terminationApi.create(data),
     onSuccess: () => {
       queryClient.invalidateQueries({ queryKey: ['dashboard'] })
       queryClient.invalidateQueries({ queryKey: ['employees'] })
@@ -352,8 +348,7 @@ export default function Termination() {
       if (filterStatus) params.status = filterStatus
       if (filterDepartment) params.department = filterDepartment
       if (searchTerm) params.search = searchTerm
-      const res = await api.get('/termination/drafts', { params }) as any
-      return res.data
+      return await terminationApi.drafts(params)
     },
     enabled: view === 'list',
   })
@@ -364,8 +359,7 @@ export default function Termination() {
   const { data: draftDetail } = useQuery({
     queryKey: ['termination-detail', draftId],
     queryFn: async () => {
-      const res = await api.get(`/termination/detail/${draftId}`) as any
-      return res.data
+      return await terminationApi.detail(draftId!)
     },
     enabled: !!draftId && view === 'detail',
   })
@@ -373,8 +367,8 @@ export default function Termination() {
   // 保存草稿
   const saveDraftMutation = useMutation({
     mutationFn: (data: any) => draftId
-      ? api.put(`/termination/draft/${draftId}`, data)
-      : api.post('/termination/draft', data),
+      ? terminationApi.updateDraft(draftId!, data)
+      : terminationApi.createDraft(data),
     onSuccess: (res: any) => {
       const newId = draftId || res?.data?.id
       setDraftId(newId)
@@ -386,7 +380,7 @@ export default function Termination() {
 
   // 提交审批
   const submitMutation = useMutation({
-    mutationFn: () => api.post(`/termination/draft/${draftId}/submit`),
+    mutationFn: () => terminationApi.submit(draftId!),
     onSuccess: () => {
       toast.success('已提交审批')
       queryClient.invalidateQueries({ queryKey: ['termination-drafts'] })
@@ -398,7 +392,7 @@ export default function Termination() {
 
   // 审批通过
   const approveMutation = useMutation({
-    mutationFn: (comment: string) => api.post(`/termination/draft/${draftId}/approve`, { comment }),
+    mutationFn: (comment: string) => terminationApi.approve(draftId!, comment),
     onSuccess: () => {
       toast.success('审批通过')
       queryClient.invalidateQueries({ queryKey: ['termination-drafts'] })
@@ -409,7 +403,7 @@ export default function Termination() {
 
   // 审批驳回
   const rejectMutation = useMutation({
-    mutationFn: (comment: string) => api.post(`/termination/draft/${draftId}/reject`, { comment }),
+    mutationFn: (comment: string) => terminationApi.reject(draftId!, comment),
     onSuccess: () => {
       toast.success('已驳回')
       queryClient.invalidateQueries({ queryKey: ['termination-drafts'] })
@@ -420,7 +414,7 @@ export default function Termination() {
 
   // 执行解聘
   const executeMutation = useMutation({
-    mutationFn: () => api.post(`/termination/draft/${draftId}/execute`),
+    mutationFn: () => terminationApi.execute(draftId!),
     onSuccess: () => {
       toast.success('解聘已执行')
       queryClient.invalidateQueries({ queryKey: ['termination-drafts'] })
@@ -436,7 +430,7 @@ export default function Termination() {
 
   // 撤销
   const cancelMutation = useMutation({
-    mutationFn: () => api.post(`/termination/draft/${draftId}/cancel`),
+    mutationFn: () => terminationApi.cancel(draftId!),
     onSuccess: () => {
       toast.success('已撤销')
       queryClient.invalidateQueries({ queryKey: ['termination-drafts'] })
@@ -451,8 +445,7 @@ export default function Termination() {
   const { data: evidenceChain } = useQuery({
     queryKey: ['evidence-chain', employeeId],
     queryFn: async () => {
-      const res = await api.get(`/roster/${employeeId}/evidence-chain`) as any
-      return res.data
+      return await rosterApi.evidenceChain(employeeId)
     },
     enabled: !!employeeId && step === 5 && saveMutation.isSuccess,
   })