Follow-up from "Architectural Design Document for Approval Rules Rearchitecture"

The following discussion from !9700 (merged) should be addressed:

• @cynthia started a discussion:

  non-blocking: @jtapiab normally when adding one form, we'd add the other forms too, such as "rearchitect" and "rearchitected". Feel free to make a separate MR so as not to block.