feat: 集成海龟就地筑巢功能（移植自 turtle-reproduce）

- 新增规则 turtleLocalNesting（默认 false）控制开关，关闭时走原版逻辑 & - 搬入 NestingSiteFinder（高性能就近沙滩搜索） & - 搬入 TurtleGoHomeGoalMixin / TurtleLayEggGoalMixin / TurtleAccessor / PathNavigationAccessor & - 原独立 mod turtle-reproduce 的功能并入本 Carpet 扩展 & - 补中英语言描述

src/main/java/com/github/zly2006/carpetslsaddition/SLSCarpetSettings.java

@@ -68,4 +68,7 @@ public class SLSCarpetSettings {
 
     @Rule(categories = {SLSA, RuleCategory.FEATURE})
     public static int trialSpawnerCD = -1;
+
+    @Rule(categories = {SLSA, RuleCategory.FEATURE})
+    public static boolean turtleLocalNesting = false;
 }