feat(武器): 重做链式机枪并添加音效

重构链式机枪的子弹生成逻辑，降低散射衰减系数
添加射击音效资源及导入配置
调整武器属性描述和数值
移除测试用的调试代码

scripts/Contents/Characters/Rooster.gd

@@ -11,8 +11,10 @@ func register():
 			elif bullet is FoxZhua:
 				EffectController.create(ComponentManager.getEffect("BloodFall"), texture.global_position).shot()
 	)
-	if !WorldManager.isRelease():
-		fields[FieldStore.Entity.BULLET_REFRACTION] = 3
+	# if !WorldManager.isRelease():
+	# 	fields[FieldStore.Entity.BULLET_REFRACTION] = 3
+	# 	fields[FieldStore.Entity.BULLET_SPLIT] = 3
+	# 	fields[FieldStore.Entity.EXTRA_BULLET_COUNT] = 3
 func ai():
 	texture.play("walk")
 	var direction = Vector2(