[OnePiece5] Fix: SetEnv wrap to Env::Set.
[OnePiece5] Fix: Remove gabage code.
[Model/Base] Chg: Database user name is auto build. (to unique model name)
[OnePiece5] Fix: Shutdown function's mime check. Use Toolbox::GetMIME.
[Developer] Fix: Check mime logic. Use Toolbox::GetMIME.