refactor: 消除所有 api-services-raw 残留调用，API 口径完全统一

- dashboardApi 新增 resolveTodo/ignoreTodo/batchResolveTodos/batchIgnoreTodos
- notificationsApi 新增 checkContracts/test
- settingsApi 新增 confirmRetirementPolicy
- socialInsuranceApi 新增 monthlyChanges/housingMonthlyChanges/housingActiveDeclaration
- Dashboard.tsx 替换 4 处 apiPatch
- Settings.tsx 替换 4 处 apiPost
- Notifications.tsx 替换 1 处 apiPost
- SocialInsurance.tsx 替换 4 处 apiGet
- AIAssistant.tsx 移除未使用的 apiPost 导入
- 所有页面零 api-services-raw 依赖

frontend/src/pages/SocialInsurance.tsx

@@ -5,7 +5,6 @@ import { useConfirm } from '../hooks/useConfirm'
 import { Calculator, Info, Check, Settings as SettingsIcon, Plus, History, Download, AlertCircle, Clock, MapPin, Sparkles, Upload, X, Shield } from 'lucide-react'
 import { InlineAlert } from '../components/ui/InlineAlert'
 import { socialInsuranceApi, commercialInsuranceApi } from '../lib/api-services'
-import { get as apiGet, post as apiPost, put as apiPut, del as apiDel } from '../lib/api-services-raw'
 import { useAuthStore } from '../store/authStore'
 import Card from '../components/ui/Card'
 import Button from '../components/ui/Button'
@@ -119,16 +118,16 @@ export default function SocialInsurance() {
   const { mutateAsync: fetchMonthlyChanges, isPending: monthlyLoading, data: monthlyChanges } = useMutation<any>({
     mutationFn: async () => {
       const [socialRes, housingRes, socialActiveRes, housingActiveRes] = await Promise.all([
-        apiGet('/social/monthly-changes', { params: { month: monthlyMonth } }) as any,
-        apiGet('/social/housing/monthly-changes', { params: { month: monthlyMonth } }) as any,
-        apiGet('/social/active-declaration', { params: { month: monthlyMonth } }) as any,
-        apiGet('/social/housing/active-declaration', { params: { month: monthlyMonth } }) as any,
+        socialInsuranceApi.monthlyChanges(monthlyMonth) as any,
+        socialInsuranceApi.housingMonthlyChanges(monthlyMonth) as any,
+        socialInsuranceApi.activeDeclaration(monthlyMonth) as any,
+        socialInsuranceApi.housingActiveDeclaration(monthlyMonth) as any,
       ])
       return {
-        social: socialRes.data,
-        housing: housingRes.data,
-        socialActive: socialActiveRes.data,
-        housingActive: housingActiveRes.data,
+        social: socialRes,
+        housing: housingRes,
+        socialActive: socialActiveRes,
+        housingActive: housingActiveRes,
       }
     },
   })