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/MissionComp.ts

@@ -47,6 +47,7 @@ import { CardInitCoins } from "../common/config/CardSet";
 import { Timer } from "db://oops-framework/core/common/timer/Timer";
 import { FieldSkillType } from "../common/config/SkillSet";
 import { spawningEngine } from "./RogueConfig";
+import { MissionEconomy } from "./MissionEconomy";
 const { ccclass, property } = _decorator;
 
 /** 任务（关卡）生命周期阶段 */
@@ -795,23 +796,11 @@ export class MissionComp extends CCComp {
         if (wave <= 1) return;
         if (wave <= this.lastPrepareCoinWave) return;
         
-        let reward = Math.max(0, Math.floor(this.prepareBaseCoinReward));
+        // 使用统一经济管理入口发放每波金币
+        const reward = MissionEconomy.executeWaveGold(this.prepareBaseCoinReward);
         
-        // 增加驻场技能金币收益
-        const goldBoost = HeroAttrsComp.getFieldSkillTotalValue(FieldSkillType.WaveGold);
-        reward += goldBoost;
-
-        if (reward <= 0) {
-            this.lastPrepareCoinWave = wave;
-            return;
-        }
-        smc.vmdata.mission_data.coin = Math.max(0, Math.floor((smc.vmdata.mission_data.coin ?? 0) + reward));
-        // 【评分系统 - 效率分】记录每波次发放的金币奖励收入
-        smc.vmdata.scores.gold_earned += reward;
         this.lastPrepareCoinWave = wave;
-        oops.message.dispatchEvent(GameEvent.CoinAdd, { delta: reward, syncOnly: true });
-        
-        mLogger.log(this.debugMode, "MissionComp", "grantPrepareCoinByWave", { wave, reward, boost: goldBoost, coin: smc.vmdata.mission_data.coin });
+        mLogger.log(this.debugMode, "MissionComp", "grantPrepareCoinByWave", { wave, reward, coin: smc.vmdata.mission_data.coin });
     }
 
     // ======================== 怪物数量管理 ========================