Business rules installed with legacy chat

Legacy chat adds the following business rules.
Name Table Description
Chat Queue [Task.active] Updater Chat Queue Entry

[chat_queue_entry]

Sets the chat queue entry Action field to Waiting when the action changes.
SNC - Chat Queue Average Wait Time Chat Queue Entry

[chat_queue_entry]

When a chat queue entry is accepted, calculates the average wait time for the queue by averaging the last 20 chat queue entries.