fix/various fixes

app-expo/src/features/profile/hooks.ts

@@ -1,8 +1,13 @@
 import { useMutation, useQuery, useQueryClient } from '@tanstack/react-query';
+import { router } from 'expo-router';
+
+import { tokenManager } from '@/core/auth/token-manager';
+import { authKeys } from '@/features/auth/hooks';
 
 import { profileApi } from './api';
 import type {
   LegalDocType,
+  PurgeUserDataRequest,
   SubmitFeedbackRequest,
   UpdateProfileRequest,
 } from './types';
@@ -82,6 +87,24 @@ export function useSubmitFeedback() {
   });
 }
 
+/**
+ * 永久清空服务端业务数据；成功后服务端会吊销所有 refresh token，
+ * 因此仅清本地会话并跳转登录（不再调用 logout 接口）。
+ */
+export function usePurgeUserData() {
+  const queryClient = useQueryClient();
+
+  return useMutation({
+    mutationFn: (body: PurgeUserDataRequest) => profileApi.purgeUserData(body),
+    onSuccess: async () => {
+      await tokenManager.clearTokens();
+      queryClient.clear();
+      queryClient.setQueryData(authKeys.tokenCheck, false);
+      router.replace('/(auth)/login');
+    },
+  });
+}
+
 // ─── Legal ───
 
 export function useLegalDoc(type: LegalDocType) {