ChainVeinFabric

新增功能 / New Features

方块描边预览 / Block Outline Preview

• 在基础设置中新增开关，开启后准星指向方块时会实时预览连锁操作将影响的范围
• 仅绘制外轮廓，相邻方块间的内部棱线自动隐藏（面剔除 + 棱合并）
• 不同模式使用不同颜色区分：采集=青色，种植=绿色，工具=黄色
• 支持所有搜索算法（相邻同种、相邻白名单、球形、平面正方形、长方体）
• 20 tick 自动刷新以响应世界变化，搜索结果缓存避免每帧重复计算

方块描边预览 / Block Outline Preview

• Added a toggle in the Basic settings tab. When enabled, hovering your crosshair over a block shows a real-time wireframe preview of all blocks that would be affected by the chain operation.
• Only outer edges are drawn — internal edges between adjacent blocks and coplanar grid lines are automatically hidden (face culling + edge merging).
• Color-coded by mode: Cyan for mining, Green for planting, Yellow for utility.
• Supports all search algorithms (Adjacent Same, Adjacent Whitelist, Sphere, Square Plane, Cuboid).
• Cached search result with 20-tick periodic refresh to handle world changes; no per-frame recomputation.