❗DB에서 board 테이블 생성 ❗게시판 API 1. /board/list 2. /board/list?searchTitle=제목 키워드 3. /board/list?searchContent=내용키워드 4. /board/{id} 5. /board/list/{writer} 6. /board/delete?id=아이디 7. /board/write 8. /board/modify/{id}