refactor: 替换天赋系统为驻场英雄技能系统

1.  删除已废弃的TalentSet天赋配置文件
2.  重构英雄属性计算逻辑，改为使用驻场技能加成
3.  更新卡牌购买、刷新费用和出售收益的加成逻辑
4.  统一技能配置格式，修复代码格式问题
5.  新增驻场技能类型与配置，兼容原有天赋效果

assets/script/game/map/CardComp.ts

@@ -33,6 +33,8 @@ import { smc } from "../common/SingletonModuleComp";
 
 import { UIID } from "../common/config/GameUIConfig";
 import { HeroAttrsComp } from "../hero/HeroAttrsComp";
+import { FieldSkillType } from "../common/config/SkillSet";
+import { FieldSkillHelper } from "../hero/FieldSkillHelper";
 import { getLvColor } from "../common/config/GameSet";
 import { MissionEconomy } from "./MissionEconomy";
 
@@ -249,7 +251,11 @@ export class CardComp extends CCComp {
         this.card_type = data.type;
 
         let baseCost = data.cost ?? 0;
-        // 天赋系统已移除：购买费用不再有优惠
+        if (this.card_type === CardType.Hero) {
+            // 驻场英雄带来的"购买优惠"折扣
+            const discount = FieldSkillHelper.getFieldSkillTotalValue(FieldSkillType.BuyDiscount);
+            baseCost = Math.max(0, baseCost - discount);
+        }
         this.card_cost = Math.floor(baseCost);
 
         this.node.active = true;