[task] (get) / API 요청 : 홈 화면

### ISSUE
- Group: `client`, `server`, `sr`
-Type: `bug`, `feature`, `delete`
-Detail: ` get('/') 에 대한 API 요청 `

### TODO
1. [ ] 프론트엔드팀과 상의해보자.
2. [ ] 아마 따로 할게없을것같음

### Estimated time
>Pick one

### `0.5h`

The issue only identifies a GET / request for the home screen and mentions client, server, and sr; no file or test is named. Start by consulting the frontend team as requested, then establish the expected response and implementation location. Done means the request’s ownership and required behavior are agreed and verified.

Written by the indexing model from the issue text.