사용자 계정 관리 기능 구현 및 API 오류 수정

- 사용자 로그인 인증정보 관리 기능 구현 (이메일/휴대폰 추가/삭제)
- 사용자 추가 기능 구현 (실시간 ID 중복 검증 포함)
- 사용자 목록 조회 기능 구현
- API 엔드포인트 오류 수정 (userExistsUserid: GET → POST, URL 경로 수정)
- TypeScript 타입 오류 수정 (UseQueryOptions, UserCreateParams/Response)
- 이메일/휴대폰 형식 검증 및 중복 방지 로직 추가

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

src/entities/user/api/use-user-create-mutation.ts

@@ -1,24 +1,50 @@
 import axios from 'axios';
-import { API_URL } from '@/shared/api/urls';
-import { resultify } from '@/shared/lib/resultify';
+import { API_URL_USER } from '@/shared/api/api-url-user';
 import { CBDCAxiosError } from '@/shared/@types/error';
-import { 
+import {
   UserCreateParams,
   UserCreateResponse
 } from '../model/types';
-import { 
+
+interface UserCreateMutationResponse {
+  status: boolean;
+  data?: UserCreateResponse;
+  error?: {
+    root: string;
+    errKey: string;
+    code: string;
+    message: string;
+    timestamp: string;
+    details: Record<string, string>;
+  };
+}
+
+import {
   useMutation,
   UseMutationOptions
 } from '@tanstack/react-query';
 
-export const userCreate = (params: UserCreateParams) => {
-  return resultify(
-    axios.post<UserCreateResponse>(API_URL.userCreate(), params),
-  );
+export const userCreate = async (params: UserCreateParams): Promise<UserCreateMutationResponse> => {
+  try {
+    const response = await axios.post<UserCreateResponse>(API_URL_USER.userCreate(), params);
+    return { status: true, data: response.data };
+  } catch (error: any) {
+    return {
+      status: false,
+      error: {
+        root: 'USER_CREATE',
+        errKey: error.response?.data?.errKey || 'UNKNOWN_ERROR',
+        code: error.response?.status?.toString() || '500',
+        message: error.response?.data?.message || error.message || 'Unknown error',
+        timestamp: new Date().toISOString(),
+        details: error.response?.data?.details || {}
+      }
+    };
+  }
 };
 
-export const useUserCreateMutation = (options?: UseMutationOptions<UserCreateResponse, CBDCAxiosError, UserCreateParams>) => {
-  const mutation = useMutation<UserCreateResponse, CBDCAxiosError, UserCreateParams>({
+export const useUserCreateMutation = (options?: UseMutationOptions<UserCreateMutationResponse, CBDCAxiosError, UserCreateParams>) => {
+  const mutation = useMutation<UserCreateMutationResponse, CBDCAxiosError, UserCreateParams>({
     ...options,
     mutationFn: (params: UserCreateParams) => userCreate(params),
   });