Collaboration Service - Implement a save feature to review past sessions.

[ong6]

Save past sessions in DB after the session is completed

[gycgabriel]

Do we need snapshots at certain points in time or is the final code enough?

If we need snapshots like google docs, when should we determine to save it?

[ong6]

No need for snapshots - just the final code version before a user leaves. -> we should also save these as sessions with the list of users which joined the session

But we have to autosave periodically or have a final session save in case all the users leave abruptly.