Box3Blocks（神岛材质包）

Update optimization for the placement mechanism of the Kami model. Key changes include:

• Model Blockification: Models previously placed as "model display items" are now implemented as "block entities."
• Interactive Parameter Adjustment: Parameters can now be adjusted in real-time using held items — switch adjustment modes with an empty hand, increase values with a stick, and decrease values with a blaze rod.
• Model Copy & Paste: Added parameter copy and paste functionality. Use paper to copy the current model's parameters (including scale, offset, and rotation settings), and use a book to paste the saved configuration.