VoxelCleaner

Added

• Particle-based live preview system for voxel operations
• New preview command to visualize affected areas before execution
• Direction-aware preview rendering (respects player facing)
• Support for box and hollow preview shapes
• Optional shell padding preview for room and hollow operations

Improved

• Safer execution of large voxel operations through visual confirmation
• Better alignment between preview geometry and final execution
• Clearer separation of concerns between commands, operations, preview, and history logic

Safety

• Previews are visible only to the executing player
• Preview system is server-safe and does not modify the world
• Protected blocks remain unaffected unless explicitly forced