feat(UI): 更新字体资源并优化物品显示逻辑

替换原有字体文件为OTF格式，添加粗体字体支持
在物品显示组件中添加字体颜色变化功能，根据资源是否足够显示不同颜色
优化Feed类的资源消耗计算逻辑，增加countOf方法提高可读性

scripts/Statemachine/ItemShow.gd

@@ -5,12 +5,14 @@ class_name ItemShow
 @export var type: ItemStore.ItemType = ItemStore.ItemType.BASEBALL
 @export var count: int = 0
 @export var autoFree: bool = false
+@export var enough: bool = true
 
 @onready var avatarTexture: TextureRect = $"%avatar"
 @onready var countLabel: Label = $"%count"
 @onready var animator: AnimationPlayer = $"%animator"
 
 func _ready():
+	countLabel.label_settings = countLabel.label_settings.duplicate()
 	if autoFree:
 		animator.play("show")
 		await animator.animation_finished
@@ -21,6 +23,10 @@ func _ready():
 func _physics_process(_delta):
 	avatarTexture.texture = ItemStore.getTexture(type)
 	countLabel.text = str(count)
+	if enough:
+		countLabel.label_settings.font_color = Color.WHITE
+	else:
+		countLabel.label_settings.font_color = Color.RED
 
 static func generate(itemType: ItemStore.ItemType, itemCount: int = 1, isAutoFree: bool = false):
 	var item = ComponentManager.getUIComponent("ItemShow").instantiate()