feat: 调整游戏平衡性和测试配置

- 提高重型水晶子弹的伤害值从20到30
- 移除玩家角色的无敌状态
- 调整KukeChild角色的攻击冷却时间
- 将默认波次从空波次改为测试BOSS波次
- 禁用自定义启动逻辑

scripts/Contents/Characters/KukeChild.gd

@@ -5,8 +5,8 @@ var masterMine: KukeMC
 func register():
 	fields[FieldStore.Entity.MAX_HEALTH] = 25
 	fields[FieldStore.Entity.MOVEMENT_SPEED] = 0.35
-	attackCooldownMap[0] = 200
-	attackCooldownMap[1] = 4000
+	attackCooldownMap[0] = 100
+	attackCooldownMap[1] = 8000
 func ai():
 	PresetEntityAI.follow(self, currentFocusedBoss, 700)
 	tryAttack(0)