생성된 토큰 응답&갱신

### ISSUE

- Group: `server`
- Type: `feature`
- Detail: 생성토큰 클라이언트 통신 구현

### TODO

- [x] Bearer 토큰 도입 (수정)
- [x] refresh 토큰갱신 응답

### Estimated time
>Pick one

### `1.5h`

### Labels

- Estimated time: `E: 1.5h`
- Group: `server`
- Sprint: `Sprint__NUMBER__2`
- Urgency: `Middle`

Start in the server implementation of the nodongu-server repository and locate the entry point for generated-token client communication. Review the existing Bearer-token and refresh-token response work, then determine the expected response behavior before making changes. Done means the token responses match the intended client flow and are verified by the relevant available checks.

Written by the indexing model from the issue text.