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/SpecialStatus.tsx

@@ -4,7 +4,7 @@
  */
 import { useEffect, useState } from 'react'
 import { Search, Plus, Edit2, Trash2, AlertTriangle, Clock, Baby, HeartPulse, Activity, X } from 'lucide-react'
-import api from '../lib/api'
+import { specialStatusApi, employeeApi } from '../lib/api-services'
 import { Input, Select, Label } from '../components/ui/Input'
 import Button from '../components/ui/Button'
 
@@ -140,9 +140,9 @@ export default function SpecialStatus() {
       if (search) params.search = search
       if (typeFilter) params.type = typeFilter
       if (statusFilter) params.status = statusFilter
-      const res = await api.get('/special-statuses', { params }) as any
-      setList(res.data.list)
-      setTotal(res.data.total)
+      const res = await specialStatusApi.list({ page, pageSize, search: search || undefined, type: typeFilter || undefined, status: statusFilter || undefined } as any) as any
+      setList(res.list)
+      setTotal(res.total)
     } finally {
       setLoading(false)
     }
@@ -150,8 +150,8 @@ export default function SpecialStatus() {
 
   const fetchStats = async () => {
     try {
-      const res = await api.get('/special-statuses/stats/overview') as any
-      setStats(res.data)
+      const res = await specialStatusApi.stats() as any
+      setStats(res)
     } catch {
       // 忽略
     }
@@ -159,8 +159,8 @@ export default function SpecialStatus() {
 
   const fetchEmployees = async () => {
     try {
-      const res = await api.get('/employees/all-lite') as any
-      setEmployees(res.data || [])
+      const res = await employeeApi.allLite() as any
+      setEmployees(res || [])
     } catch {
       // 忽略
     }
@@ -212,9 +212,9 @@ export default function SpecialStatus() {
       if (data.medicalMonths) data.medicalMonths = parseInt(data.medicalMonths)
 
       if (editing) {
-        await api.put(`/special-statuses/${editing.id}`, data)
+        await specialStatusApi.update(editing.id, data)
       } else {
-        await api.post('/special-statuses', data)
+        await specialStatusApi.create(data)
       }
       setEditOpen(false)
       fetchList()
@@ -227,7 +227,7 @@ export default function SpecialStatus() {
   const handleDelete = async () => {
     if (!deleteTarget) return
     try {
-      await api.delete(`/special-statuses/${deleteTarget.id}`)
+      await specialStatusApi.remove(deleteTarget.id)
       setDeleteTarget(null)
       fetchList()
       fetchStats()