Add cuid for all tables

[AnandChowdhary]

Tables that have username, like organization and user, already have a human-readable key (apart from autoincrementing ID).

• All tables apart from those can have cuid as the column name and default value cuid()
• The default value for username can also be cuid unless a better one is available
• API keys can use cuid instead of JWT etc.

[FindingAnand]

⚠️ This issue has not seen any activity in the past 2 months so I'm marking it as stale. I'll close it if it doesn't see any activity in the coming week.

[AnandChowdhary]

This needs to be rethought. The default autoincremented ID should be more than enough, but we need a better way when expoing them to users (which is not a string CUID for sure).