Problem
We need to be able to calculate how long it takes for a conversation to be closed ("resolved").

Right now the way we determine if a conversation is closed is by looking at the status field, which can currently only be "open" or "closed".

Solution

• Set up a database migration to add the closed_at field to the conversations table (as a utc_datetime)
• Update the

Description:
Implement MVVM(Model View ViewModel) architecture in the project.