Dab-clinic

PRN212 assignment project.

General rule:

1. Repo log then throw exception
2. Services process exception/send user messages
3. update account => re pass account to window

Bussiness rule 0. All user infos must be completely filled when registering an account.

1. Username must be between 3 and 20 characters long.
2. Email must be a valid email.
3. Password must be between 3 and 10 characters long.
4. Fullname must be between 3 and 30 characters long.
5. Phone number must be a valid phone number.