chore: 移除游戏内天赋系统相关代码

1.  删除所有TalentType相关导入和天赋数据存储逻辑
2.  移除英雄属性天赋加成计算逻辑
3.  移除卡牌购买、刷新、售卖的天赋优惠逻辑
4.  将getTalentValue方法降级为空实现
5.  清理多余的空行代码格式

assets/script/game/map/CardComp.ts

@@ -33,7 +33,6 @@ import { smc } from "../common/SingletonModuleComp";
 
 import { UIID } from "../common/config/GameUIConfig";
 import { HeroAttrsComp } from "../hero/HeroAttrsComp";
-import { TalentType } from "../common/config/TalentSet";
 import { getLvColor } from "../common/config/GameSet";
 import { MissionEconomy } from "./MissionEconomy";
 
@@ -250,10 +249,7 @@ export class CardComp extends CCComp {
         this.card_type = data.type;
 
         let baseCost = data.cost ?? 0;
-        if (this.card_type === CardType.Hero) {
-            const discount = HeroAttrsComp.getTalentValue(TalentType.BuyDiscount);
-            baseCost = Math.max(0, baseCost - discount);
-        }
+        // 天赋系统已移除：购买费用不再有优惠
         this.card_cost = Math.floor(baseCost);
 
         this.node.active = true;