feat(子弹): 添加白色灵魂子弹并调整相关配置

添加新的WhiteSoul子弹类型，继承自BulletBase
调整SevenSoul子弹逻辑，使其能生成WhiteSoul子弹
修改Chick角色的攻击冷却时间和子弹数量
更新SevenSoul武器的伤害描述和音效音量
将默认测试波次改为Chick
移除Diamond子弹的自伤逻辑

scripts/Contents/Bullets/SevenSoul.gd

@@ -9,6 +9,7 @@ var colors = [
 	"#FDEB0F"
 ]
 var index = 0
+var spawnedChild = false
 
 @onready var heart = $"%heart"
 @onready var effect: GPUParticles2D = $"%effect"
@@ -16,12 +17,16 @@ var index = 0
 func spawn():
 	modulate = Color(colors[index % colors.size()])
 	effect.emitting = true
+	
 func ai():
 	rotation_degrees = 360.0 / colors.size() * index + timeLived() / 20000.0 * 360 - index / 6.0 * 360.0
 	heart.global_rotation_degrees = 0
 	PresetBulletAI.lockLauncher(self, launcher, true)
 func applyDot():
 	if timeLived() > 20000 * ((6.0 - index) / 6.0):
+		if !spawnedChild:
+			BulletBase.generate(ComponentManager.getBullet("WhiteSoul"), launcher, heart.global_position, rotation)
+			spawnedChild = true
 		BulletBase.generate(ComponentManager.getBullet("SoulBall"), launcher, heart.global_position, heart.global_position.angle_to_point(get_global_mouse_position()))
 	await TickTool.millseconds(100)
 	return true