아이디 로우 케이스로 변경함

데이터베이스에 저장되는 아이디 변경

Signed-off-by: karuana <mse201@gmail.com>
연관개발자 구하는 내용

ㅇ

Signed-off-by: karuana <mse201@gmail.com>
Merge branch 'master' of https://github.com/karuana/STANly_Server