refactor(英雄属性): 移除DIS属性及相关代码

移除英雄和怪物类中不再使用的DIS属性，包括初始化、赋值和引用代码

assets/script/game/hero/Hero.ts

@@ -101,7 +101,6 @@ export class Hero extends ecs.Entity {
         model.base_def = hero.def;
         model.base_hp = hero.hp;
         model.base_mp = hero.mp;
-        model.base_dis = hero.dis;
         model.base_speed = hero.speed;
         
         // 初始化属性数组
@@ -112,7 +111,6 @@ export class Hero extends ecs.Entity {
         model.Attrs[Attrs.DEF] = model.base_def;
         model.Attrs[Attrs.AP] = model.base_ap;
         model.Attrs[Attrs.SPEED] = hero.speed;
-        model.Attrs[Attrs.DIS] = hero.dis;
        
         // 初始化 buff/debuff 系统
         model.initAttrs();