Sulfur Cubes Mod - v1.6-SNAPSHOT

This update focuses on visual fidelity and a complete overhaul of the entity spawning system to ensure Sulfur Cubes inhabit their intended biomes.

🎨 Visual Overhaul

• Modified Model: The Sulfur Cube model has been completely rebuilt for better geometry and smoother animations.
• New Texture: Replaced the old placeholder/base textures with a custom, high-detail skin to match the Sulfur Caves' atmosphere.

🛠 Natural Spawning (Refactored)

• Underground Logic Fixed: Resolved a major issue where Sulfur Cubes would not spawn underground.
  • Changed MobCategory from CREATURE to AMBIENT.
  • This allows the engine to skip the "Sunlight & Grass" requirements.
• Group Scaling: Now spawns in groups of 1 to 4 per successful spawn attempt.
• Placement Requirements: Cubes now strictly spawn on SULFUR_BLOCK surfaces within their native biome.

🏗 Developer & Source Changes

• Registry Fixes: Updated SpawnPlacements to use Heightmap.Types.MOTION_BLOCKING, allowing the spawn cycle to correctly find cave floors instead of world-height surfaces.
• Block Properties: Explicitly added .isValidSpawn() to the Sulfur Block properties to override restrictions.
• Build System Fix: Fixed a bug in the Gradle/CI pipeline where specific .jar files (sources/shadow) were not being uploaded to the distribution point.