팔로워 Count [post 상세조회]

sequenceDiagram autonumber
    actor member
    member ->>+ApiServer: GET "/api/member/{id}/follower/count"
    ApiServer ->>+ApiServer: 유효성 체크
    ApiServer->>+Member: {id} 기반 정보 조회
        Member ->>+ follow: 팔로워 count
        follow -->>-Member: return 
    Member-->>-ApiServer:  return
    ApiServer -->>-member: return

Header : {
  cookie : ${token}
}Body :{
}

{
   "response":{
				{followerCount}
    }
}