[AutoGen Studio] Add database versioning to manage schema compatibility

[gagb]

And yes, we will need some good versioning scheme to deal with database schema compatibility issues like this.
Added to the roadmap #737

Originally posted by @victordibia in #1340 (comment)

[victordibia]

@monuminu , following up on our conversation, it would be great to get some help in improving the local db for autogen at the moment.
Some thoughts.

• Keep track of database version in a db table
• Keep track of db version in version.py. This gets incremented each time there is a schema update
• On db init or db load, check if the current db version matches some db version.py. If not, run throw a meaningful error message (or run a migration script)

[rysweet]

@victordibia is this still an issue?

[victordibia]

AutoGen Studio has a db versioning scheme based on sqlmodel.
Some additional work needs to be done for automatic migration across db versions.

But will close this for now.