Copy-Item

新增核心方块「复制物品方块」，可通过漏斗输入物品、红石信号激活实现物品复制

• 添加两种合成配方：基础合成配方 + 沉浸式工程（Immersive Engineering）材料合成配方

• 实现核心复制逻辑：输入1个物品，激活后复制64倍（可配置），输入物品默认消耗

• 新增优化机制：方块顶部放置铁块，可取消输入物品消耗，持续复制至前方箱子填满

• 支持物品取回：通过漏斗可吸走方块内未复制的输入物品，便于重复使用

• 添加配置功能：可通过游戏内模组菜单或 config/copyitem-common.toml 文件修改复制倍数（范围1~64，默认64）

• 完善基础交互：红石信号未激活时，方块不执行任何复制操作，避免误触发

Added core block "Copy Item Block", which can input items through a hopper and activate item duplication with a redstone signal

• Added two crafting recipes: basic crafting recipe + Immersive Engineering material crafting recipe

• Implemented core duplication logic: input 1 item, duplicate it 64 times (configurable) when activated, and the input item is consumed by default

• Added optimization mechanism: place an iron block on top of the block to cancel input item consumption and continuously duplicate until the front chest is full

• Supported item retrieval: the unduplicated input item in the block can be extracted through a hopper for repeated use

• Added configuration function: the copy multiplier can be modified through the in-game mod menu or the config/copyitem-common.toml file (range 1~64, default 64)

• Improved basic interaction: the block will not perform any duplication operations when the redstone signal is not activated to avoid false triggers