Armory Preview Cache - v18

• Refreshes a retained preview when the game re-renders that item, so changing a weapon's pattern or attachment updates its thumbnail instead of leaving the previous appearance cached.
• Retires the stale preview as soon as the game reports the weapon's new configuration, so the tile updates on the back-out rather than after the whole category rebuilds.
• Keeps retained previews and instant revisits for unchanged equipment, and restores the widgets it drops on eviction.
• Adds image_rendered_items, image_refreshed, image_changed_items and image_reappeared to the log.
• Requires Bingus Shared Loader v14 or newer; no setting, profile or save migration.