XRay Highlights 1.0.18 - No Flicker + Dynamic Mob Autocomplete (Minecraft 26.2)

MOBS
/xray on
/xray solo slime
/xray solo nautilus
/xray solo glow_squid
/xray off

BLOCKS
/xray bloques on
/xray bloques solo spawner
/xray bloques off

Changes in 1.0.18
- Fixes block/spawner flicker by never deleting unchanged block_display markers during rescans.
- Rescans now calculate differences: only obsolete markers are removed and only new markers are created.
- Keeps the current markers visible while a replacement radius scan runs.
- Fixes a race that could set blockScan to null between scan processing and completion checks.
- Broken source blocks still remove their exact marker every 2 ticks.
- Replaces hundreds of ambiguous literal command branches with a single argument and real Brigadier autocomplete.
- Autocomplete merges friendly Spanish aliases, vanilla mobs, and every registered entity ID at runtime, including modded IDs such as modid:entity.
- Keeps the tested mob GLOWING implementation and the on/off/solo command set.
- No mixins and no custom RenderPipeline.
