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/Templates.tsx

@@ -2,7 +2,7 @@ import { useState } from 'react'
 import { useQuery, useMutation, useQueryClient } from '@tanstack/react-query'
 import { FileText, Copy, X, ChevronRight, Download, BookOpen, HelpCircle, Plus, Edit, Trash2, Building2 } from 'lucide-react'
 import { toast } from 'sonner'
-import api from '../lib/api'
+import { templatesApi } from '../lib/api-services'
 import { useAuthStore } from '../store/authStore'
 import Card from '../components/ui/Card'
 import Button from '../components/ui/Button'
@@ -110,17 +110,14 @@ function SystemTemplates() {
   const { data: list, isLoading } = useQuery<any>({
     queryKey: ['templates', category],
     queryFn: async () => {
-      const params = category ? `?category=${category}` : ''
-      const res = await api.get(`/templates${params}`) as any
-      return res.data
+      return await templatesApi.list(category || undefined)
     },
   })
 
   const { data: detail } = useQuery<any>({
     queryKey: ['template-detail', selected?.id],
     queryFn: async () => {
-      const res = await api.get(`/templates/${selected.id}`) as any
-      return res.data
+      return await templatesApi.detail(selected.id)
     },
     enabled: !!selected,
   })
@@ -128,8 +125,8 @@ function SystemTemplates() {
   const handleRender = async () => {
     if (!selected) return
     try {
-      const res = await api.post(`/templates/${selected.id}/render`, { variables }) as any
-      setRendered(res.data.content)
+      const res = await templatesApi.render(selected.id, variables) as any
+      setRendered(res.content)
     } catch (err: any) {
       toast.error('渲染失败')
     }
@@ -318,8 +315,7 @@ function EnterpriseTemplates() {
     queryFn: async () => {
       const params: any = { page, pageSize }
       if (category) params.category = category
-      const res = await api.get('/enterprise-templates', { params }) as any
-      return res.data
+      return await templatesApi.enterpriseList({ page, pageSize, category: category || undefined } as any)
     },
   })
   const list = listData?.items || []
@@ -328,8 +324,7 @@ function EnterpriseTemplates() {
   const { data: detail } = useQuery<any>({
     queryKey: ['enterprise-template-detail', selected?.id],
     queryFn: async () => {
-      const res = await api.get(`/enterprise-templates/${selected.id}`) as any
-      return res.data
+      return await templatesApi.enterpriseDetail(selected.id)
     },
     enabled: !!selected,
   })
@@ -337,11 +332,9 @@ function EnterpriseTemplates() {
   const saveMutation = useMutation({
     mutationFn: async (data: any) => {
       if (editItem) {
-        const res = await api.put(`/enterprise-templates/${editItem.id}`, data) as any
-        return res.data
+        return await templatesApi.saveEnterprise(data, editItem.id)
       } else {
-        const res = await api.post('/enterprise-templates', data) as any
-        return res.data
+        return await templatesApi.saveEnterprise(data)
       }
     },
     onSuccess: () => {
@@ -356,7 +349,7 @@ function EnterpriseTemplates() {
 
   const deleteMutation = useMutation({
     mutationFn: async (id: string) => {
-      await api.delete(`/enterprise-templates/${id}`)
+      await templatesApi.removeEnterprise(id)
     },
     onSuccess: () => {
       toast.success('已删除')
@@ -368,8 +361,8 @@ function EnterpriseTemplates() {
   const handleRender = async () => {
     if (!selected) return
     try {
-      const res = await api.post(`/enterprise-templates/${selected.id}/render`, { variables }) as any
-      setRendered(res.data.content)
+      const res = await templatesApi.renderEnterprise(selected.id, variables) as any
+      setRendered(res.content)
     } catch {
       toast.error('渲染失败')
     }