refactor(卡牌类型): 移除卡牌类型映射中的Buff/Debuff分类

简化CardType枚举，移除Potion类型并调整Special类型值。
更新卡牌使用组件中的类型映射逻辑，不再为Buff/Debuff返回特定字符串。

assets/script/game/common/config/CardSet.ts

@@ -4,8 +4,7 @@ import * as exp from "constants"
 export enum CardType {
     Hero = 1,
     Skill = 2,
-    Potion = 3,
-    Special = 4,
+    Special = 3,
     Buff = 5,
     Debuff = 6,
 }
@@ -36,7 +35,7 @@ export const CardsUpSet: Record<number, number> = {
     4: 200,
     5: 250,
 }
-
+/**初始coin数     */
 export const CardInitCoins = 4
 /** 卡池升级每波减免金额 */
 export const CARD_POOL_UPGRADE_DISCOUNT_PER_WAVE = 10