Depth campaign

[Dzeranov]

Description

This is a parent issue for implementing a new campaign type - Depth

Implementation Details

Proposal: https://docs.google.com/document/d/1ljU7LdUSaxinmP78D6FKCinay95NLmWZfekn4vh3hMY/edit?tab=t.0
Sub-issues will be created once we start working on that