refactor: update migration for UUIDv7 and explicit FK constraint

- Add on_delete: :restrict to users.role_id foreign key
- Update roles.id to use uuid_generate_v7() default
- Regenerate resource snapshots

priv/repo/migrations/20260106161215_add_authorization_domain.exs

@@ -22,6 +22,7 @@ defmodule Mv.Repo.Migrations.AddAuthorizationDomain do
                column: :id,
                name: "users_role_id_fkey",
                type: :uuid,
+               on_delete: :restrict,
                prefix: "public"
              )
     end