refactor(hero): 优化怪物生成位置计算并添加调试日志

- 使用 MonStart 配置计算怪物出生位置，替代硬编码的 MonSet
- 添加 console.log 调试英雄和怪物的 siblingIndex
- 根据 y 坐标动态判断线路，提高代码可读性和可维护性

assets/script/game/hero/Hero.ts

@@ -55,7 +55,8 @@ export class Hero extends ecs.Entity {
         // 🔥 设置初始 SiblingIndex - 英雄基础层级 + 位置偏移
         const initialSiblingIndex = IndexSet.HERO;
         node.setSiblingIndex(initialSiblingIndex);
-        
+        console.log("hero",node.getSiblingIndex());
+
         // console.log("hero load",pos)
         var hv = node.getComponent(HeroViewComp)!;
         const model = this.get(HeroAttrsComp);

assets/script/game/hero/Mon.ts

@@ -55,7 +55,7 @@ export class Monster extends ecs.Entity {
         const safeSpawnOrder = spawnOrder % 999; // 限制在999以内，避免溢出到其他层级
         const initialSiblingIndex = baseLane + safeSpawnOrder;
         node.setSiblingIndex(initialSiblingIndex);
-
+        console.log("mon",node.getSiblingIndex());
         var view = node.getComponent(HeroViewComp)!;
         const model = this.get(HeroAttrsComp);
         const skillsComp = this.get(HeroSkillsComp);