Maromend

- Added the new Maromend `MM` artwork as both the addon-list icon and minimap-button icon, stored as a compact native 128-pixel RGBA texture.
- Replaced broad 47-row unit-event refreshes with unit-token-indexed health, Mana, name, target, focus, and threat updates.
- Removed the unused `UNIT_HEAL_PREDICTION` listener, which had no corresponding incoming-heal visual but still caused full frame refreshes.
- Coalesced overlapping cooldown and spell-usability events into one end-of-frame update for each system.
- Reduced spell cooldown queries from once per visible unit button to once per configured profile slot, then reused each Blizzard duration object across active rows.
- Limited cooldown, spell-usability, threat, raid-marker, and range presentation work to currently enabled frame groups.
- Cached per-profile range support once per spell and changed red range overlays only when their visible state actually changes.
- Stopped the persistent range ticker while Maromend frames or range checks are disabled.
- Skipped protected raid-frame and Aura Container reassignment when a row's unit token has not changed.
- Added a separate deferred Aura refresh path and pre-guarded Aura Slot/filter presentation while Blizzard marks aura data secret.
- Preserved secure unit targeting, in-combat duration-object cooldowns, class/role visuals, profiles, dispel presentation, raid groups, and keystone-reload behavior.