feat(map,hero): add hero sell function to hero box

1. 新增出售按钮与价格标签UI到HeroBoxComp
2. 实现英雄出售逻辑：移除实体、结算金币并派发事件
3. 统一使用MissionEconomy管理出售金币计算
4. 调整窗口prefab布局适配新UI元素

assets/script/game/map/HeroBoxComp.ts

@@ -19,8 +19,10 @@ import { oops } from "db://oops-framework/core/Oops";
 import { GameEvent } from "../common/config/GameEvent";
 import { HeroInfo } from "../common/config/heroSet";
 import { HeroAttrsComp } from "../hero/HeroAttrsComp";
+import { Hero } from "../hero/Hero";
 import { getLvColor } from "../common/config/GameSet";
 import { buildSkillDescRich } from "../common/config/HeroSkillDesc";
+import { MissionEconomy } from "./MissionEconomy";
 
 const { ccclass, property } = _decorator;
 
@@ -53,6 +55,14 @@ export class HeroBoxComp extends CCComp {
     @property(Node)
     private noHero: Node = null;
 
+    /** 出售按钮（绑定英雄时激活，点击出售该英雄） */
+    @property(Node)
+    private sell_btn: Node = null;
+
+    /** 出售价格标签（按英雄等级显示当前卖价，含驻场加成） */
+    @property(Label)
+    private sell_price_label: Label = null;
+
     /** 技能描述富文本（多行，展示当前等级触发技能，数值高亮） */
     @property(RichText)
     private skill_label: RichText = null;
@@ -154,6 +164,8 @@ export class HeroBoxComp extends CCComp {
         this.more_btn?.on(NodeEventType.TOUCH_CANCEL, this.onMoreBtnTouchEnd, this);
         // 空槽位点击 → 打开英雄卡池
         this.noHero?.on(NodeEventType.TOUCH_END, this.onNoHeroClick, this);
+        // 出售按钮点击 → 出售当前绑定英雄
+        this.sell_btn?.on(NodeEventType.TOUCH_END, this.onSellHeroClick, this);
     }
 
     onDestroy() {
@@ -165,6 +177,28 @@ export class HeroBoxComp extends CCComp {
         if (this.noHero && this.noHero.isValid) {
             this.noHero.off(NodeEventType.TOUCH_END, this.onNoHeroClick, this);
         }
+        if (this.sell_btn && this.sell_btn.isValid) {
+            this.sell_btn.off(NodeEventType.TOUCH_END, this.onSellHeroClick, this);
+        }
+    }
+
+    /**
+     * 出售按钮点击：移除英雄实体、按等级结算金币并派发 HeroSell 事件。
+     * MissionCardComp 监听该事件后会刷新槽位，本盒自动切为空状态。
+     */
+    private onSellHeroClick() {
+        if (!this.eid || !this.model) return;
+        const heroLv = Math.max(1, Math.floor(this.model.lv ?? 1));
+        // 移除 ECS 实体失败（实体已失效）则不做后续结算
+        if (!Hero.removeByEid(this.eid)) return;
+
+        oops.audio.playEffect("music/button");
+        // 统一经济管理入口：按等级计算卖价并加金币
+        const gold = MissionEconomy.executeSellHero(heroLv);
+        mLogger.log(this.debugMode, "HeroBoxComp", "onSellHeroClick", { eid: this.eid, heroLv, gold });
+
+        // 通知 MissionCardComp 更新场上英雄数量并刷新英雄盒槽位
+        oops.message.dispatchEvent(GameEvent.HeroSell, { eid: this.eid });
     }
 
     /**
@@ -254,6 +288,9 @@ export class HeroBoxComp extends CCComp {
         if (this.noHero && this.noHero.isValid) {
             this.noHero.active = false;
         }
+        if (this.sell_btn && this.sell_btn.isValid) {
+            this.sell_btn.active = true;
+        }
         this.refresh();
     }
 
@@ -268,6 +305,13 @@ export class HeroBoxComp extends CCComp {
             this.noHero.active = true;
         }
 
+        if (this.sell_btn && this.sell_btn.isValid) {
+            this.sell_btn.active = false;
+        }
+        if (this.sell_price_label && this.sell_price_label.isValid) {
+            this.sell_price_label.string = "";
+        }
+
         if (this.name_label && this.name_label.isValid) {
             this.name_label.string = "";
         }
@@ -319,6 +363,12 @@ export class HeroBoxComp extends CCComp {
             this.level_label.color = getLvColor(lv);
         }
 
+        // ---- 出售价格（按等级计算，含驻场 SellGold 加成） ----
+        if (this.sell_price_label && this.sell_price_label.isValid) {
+            const lv = Math.max(1, Math.floor(this.model.lv ?? 1));
+            this.sell_price_label.string = `${MissionEconomy.getSellGold(lv)}`;
+        }
+
         // ---- AP / HP ----
         const finalAp = Math.max(0, Math.floor(this.model.getFinalAp()));
         const baseAp = Math.max(0, Math.floor(this.model.base_ap ?? 0));