The dev customer dashboard's origin: unused while invites are silent, kept for parity with the owner invite.
Resolves a member's prod role name to that set's role id.
Reads which role set the twin's workspace is on.
Creates the twin's fresh dev workspace inside the customer's transaction.
Reads the twin by its prodCustomerId link.
Opens the transaction the twin customer and its grants share.
Reads the twin's primary org status for the top-up gate.
Writes the silent member invites.