refactor(map): 重构局内经济系统，统一封装金币操作逻辑

新建MissionEconomy类作为局内经济统一管理入口，整合原分散在HInfoComp、MissionComp、CardComp、MissionCardComp中的金币计算、消费、收益统计逻辑，移除各组件中重复的getMissionCoin、setMissionCoin、getRefreshCost等工具方法，统一维护评分系统的金币统计，提升代码可维护性。

assets/script/game/map/MissionEconomy.ts

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+import { smc } from "../common/SingletonModuleComp";
+import { oops } from "../../../../extensions/oops-plugin-framework/assets/core/Oops";
+import { GameEvent } from "../common/config/GameEvent";
+import { HeroAttrsComp } from "../hero/HeroAttrsComp";
+import { FieldSkillType } from "../common/config/SkillSet";
+import { TalentType } from "../common/config/TalentSet";
+import { FightSet } from "../common/config/GameSet";
+
+/**
+ * 局内经济统一管理类
+ * 负责统一处理金币的增减、各种费用的计算以及战绩评分中的金币统计。
+ */
+export class MissionEconomy {
+    /** 获取当前金币 */
+    static getCoin(): number {
+        return Math.max(0, Math.floor(smc.vmdata.mission_data.coin ?? 0));
+    }
+
+    /** 增加金币并更新统计 */
+    static addCoin(amount: number) {
+        if (amount <= 0) return;
+        amount = Math.floor(amount);
+        smc.vmdata.mission_data.coin = this.getCoin() + amount;
+        smc.vmdata.scores.gold_earned += amount;
+        
+        // 发送 UI 更新事件，这里我们统一使用 syncOnly 通知 UI 刷新即可
+        oops.message.dispatchEvent(GameEvent.CoinAdd, { delta: amount, syncOnly: true });
+    }
+
+    /** 消费金币并更新统计 */
+    static spendCoin(amount: number): boolean {
+        if (amount <= 0) return true;
+        amount = Math.floor(amount);
+        const current = this.getCoin();
+        if (current < amount) return false;
+        
+        smc.vmdata.mission_data.coin = current - amount;
+        smc.vmdata.scores.gold_spent += amount;
+        
+        // 发送 UI 更新事件
+        oops.message.dispatchEvent(GameEvent.CoinAdd, { delta: -amount, syncOnly: true });
+        return true;
+    }
+
+    /** 
+     * 计算卡牌刷新费用
+     * @param baseCost 基础费用，默认为1
+     */
+    static getRefreshCost(baseCost: number = 1): number {
+        let cost = baseCost;
+        const discount = HeroAttrsComp.getTalentValue(TalentType.RefreshDiscount);
+        cost = Math.max(0, cost - discount);
+        return Math.floor(cost);
+    }
+
+    /** 
+     * 执行刷新卡牌并扣除金币
+     */
+    static executeRefresh(baseCost: number = 1): boolean {
+        const cost = this.getRefreshCost(baseCost);
+        const success = this.spendCoin(cost);
+        if (success) {
+            smc.vmdata.scores.refresh_count++;
+        }
+        return success;
+    }
+
+    /** 
+     * 计算英雄出售金币 
+     */
+    static getSellGold(): number {
+        const baseSellGold = 1; // 基础卖出金币
+        const goldBoost = HeroAttrsComp.getFieldSkillTotalValue(FieldSkillType.SellGold);
+        let totalSellGold = baseSellGold + goldBoost;
+        // 应用天赋 SellBonus (增加数值)
+        const bonusGold = HeroAttrsComp.getTalentValue(TalentType.SellBonus);
+        if (bonusGold > 0) {
+            totalSellGold += bonusGold;
+        }
+        return Math.floor(totalSellGold);
+    }
+
+    /** 
+     * 执行出售英雄并增加金币 
+     */
+    static executeSellHero(): number {
+        const gold = this.getSellGold();
+        this.addCoin(gold);
+        return gold;
+    }
+
+    /** 
+     * 计算每波基础金币收益 
+     */
+    static getWaveGold(baseReward: number): number {
+        let reward = Math.max(0, Math.floor(baseReward));
+        const goldBoost = HeroAttrsComp.getFieldSkillTotalValue(FieldSkillType.WaveGold);
+        reward += goldBoost;
+        return reward;
+    }
+
+    /** 
+     * 执行发放每波金币 
+     */
+    static executeWaveGold(baseReward: number): number {
+        const reward = this.getWaveGold(baseReward);
+        if (reward > 0) {
+            this.addCoin(reward);
+        }
+        return reward;
+    }
+}