Feat/#3/auth client

[halionaz]

❗ 연관 이슈

• Resolves 회원가입&로그인 관리 #3

📌 내용

• 중요 !
• 로그인 관련 PR입니다

☑️ 체크 사항 & 논의 사항

• [ ]

[Copilot]

Pull Request Overview

This PR adds an authentication client with automatic token refreshing and introduces a TestAPIButton component (with its hook and styles) to manually check login status.

• Introduce axios client with refresh-token interceptor
• Add useGetIsLogin hook for login status queries
• Create TestAPIButton component and integrate it on the HomePage

Reviewed Changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
src/pages/HomePage/index.tsx	Imported and rendered the new TestAPIButton alongside login links
src/common/utils/client.ts	Set up axios client with baseURL, JSON headers, credentials, and 401-refresh interceptor
src/common/hooks/apis/useGetIsLogin.ts	New React Query hook to fetch login status (/api/test/is-login)
src/common/components/TestAPIButton/style.css.ts	CSS-in-JS styling for TestAPIButton
src/common/components/TestAPIButton/index.tsx	Implemented the button to trigger the login-status refetch

Comments suppressed due to low confidence (1)

src/common/hooks/apis/useGetIsLogin.ts:9

• Add unit tests for useGetIsLogin to validate behavior when enabled is false, and ensure refetch triggers the expected API call.

const useGetIsLogin = () => {