Shrinkium for Hytale 0.7

Native Hytale 0.7.4. The brass cage, violet crystal reactor and walnut grip are the current in-game ray model.
The Shrink Ray can set a living target to 75%, 50% or 25% of its captured original size. Primary fires at one visible target; Secondary opens the controls, including an explicit SELF button. Each successful ray change costs one Shrinkium Crystal. Misses, walls and no-ops consume none.
The implemented starting loop is cave crystal → Workbench recipe → shrinking → safe restoration. See first steps for the full route and its current playtest limits, recipes for quantities, and safe restoration before trying a narrow passage.
Keep world and player backups. The ray and corrected ore have been playtested in single-player. The full ordinary survival acquisition route and real second-client behavior remain unverified. After free restoration the ray may be hidden; change hotbar slots and select it again.
The declared range is >=0.7.4 <0.8.0. Native observations cover 0.7.4; a range is not evidence that every future patch works. Compatibility details explain how to choose a file and which checks are still open.