feat(战斗系统): 添加小鸡冲刺攻击技能及相关特效

实现小鸡的冲刺攻击能力，包括：
1. 新增ChickSprint子弹类型及场景
2. 为EntityBase添加拖尾粒子效果
3. 添加攻击蓄力特效和音效
4. 调整小鸡的攻击冷却时间和冲刺倍率
5. 优化TickTool工具类添加until方法
6. 修改世界背景z-index避免遮挡

调整战斗平衡性：
1. 降低默认冲刺倍率
2. 修改测试波次配置
3. 增加新的攻击方式选项

scripts/Contents/Bullets/ChickSprint.gd

@@ -0,0 +1,11 @@
+extends BulletBase
+class_name ChickSprint
+
+func register():
+	speed = 0
+	damage = 30
+	penerate = 1
+func ai():
+	PresetsAI.lockLauncher(self, launcher, true)
+	if !launcher.sprinting:
+		tryDestroy()

scripts/Contents/Characters/Chick.gd

@@ -8,9 +8,11 @@ const laserCount = 4
 func register():
 	fields[FieldStore.Entity.MAX_HEALTH] = 2000
 	fields[FieldStore.Entity.MOVEMENT_SPEED] = 0.35
-	attackCooldownMap[0] = 2000
+	attackCooldownMap[0] = 500
 	attackCooldownMap[1] = 6000
 	attackCooldownMap[2] = 100
+	attackCooldownMap[3] = 500
+	sprintMultiplier = 60
 func spawn():
 	texture.play("walk")
 
@@ -21,7 +23,8 @@ func ai():
 	elif currentFocusedBoss.position.distance_to(position) < 700:
 		tryAttack(1)
 	else:
-		tryAttack(0)
+		var method = MathTool.randc_from([0, 3])
+		tryAttack(method, method == 3)
 func attack(type):
 	if type == 0:
 		var weaponPos = findWeaponAnchor("normal")
@@ -36,4 +39,11 @@ func attack(type):
 		firepot.global_rotation = target
 		firepot.shot()
 		BulletBase.generate(preload("res://components/Bullets/FireScan.tscn"), self, weaponPos, target)
+	elif type == 3:
+		trailing = true
+		BulletBase.generate(preload("res://components/Bullets/ChickSprint.tscn"), self, position, 0)
+		await trySprint()
+		trailing = false
 	return true
+func sprint():
+	move((currentFocusedBoss.position - position).normalized() * sprintMultiplier, true)

scripts/Contents/Wave.gd

@@ -11,8 +11,9 @@ var per: int = 0
 static var current: int = 0
 static var data: Array[Wave] = [
 	# entity, minCount, maxCount, isBoss, from, to, per
-	create(preload("res://components/Characters/Hen.tscn"), 1, 5, false, 0, INF, 1),
-	create(preload("res://components/Characters/Chick.tscn"), 0, 0, true, 8, INF, 6),
+	# create(preload("res://components/Characters/Hen.tscn"), 1, 5, false, 0, INF, 1),
+	# create(preload("res://components/Characters/Chick.tscn"), 0, 0, true, 8, INF, 6),
+	create(preload("res://components/Characters/Chick.tscn"), 1, 1, true, 0, INF, 1),
 ]
 
 static func create(