email registration fails silently about llmchat

[c0sogi]

Desktop.2023.05.14.-.09.38.48.04-00.01.27.160-00.02.04.299.online-video-cutter.com.mp4

The reason why you can't sign up with that account is probably because the account already exists in the mysql database. As you can see in the video above, after deleting the already registered user and sign up, it is registered normally. It doesn't have an unregister function yet, but we'll update it soon.

[Torhamilton]

On second thought, best to give user a notice like "email is already registered"

[c0sogi]

In b0fe554, while adding the unregister function, I changed it to output detail on login & register failure. However, if you already have a MySQL table created, the unregister function may not work properly, because the cascade option was not entered in child table's ForeignKey before. To solve this, I recommend removing the mysql volume via docker-compose -f docker-compose-prod.yaml down -v and up again