TranscriptDB could be deserialized on login and serialized on exit to avoid the constant overflow issue

PLAYER_LOGOUT event can be use to trigger the serialization before the savedvariable file is written to disk

This solution was implemented in WeakAuras with https://github.com/WeakAuras/WeakAuras2/pull/3869/files to avoid issues when users save huge amount of data

As seen with Funkeh, this feature would make the file unreadable out of the game which is not wanted