- Add Mv.Helpers module with ash_actor_opts/1 helper
- Add current_actor/1 with @spec to LiveHelpers
- Add ash_actor_opts/1 delegate and submit_form/3 wrapper to LiveHelpers
- Standardize actor access pattern across LiveViews
Move duplicate ensure_user_role_loaded logic into MvWeb.LiveHelpers
on_mount hook to eliminate code duplication across RoleLive modules
and centralize security-related user role loading.