feat(关卡): 添加英雄数量上限机制

- 在 MissionCardComp 中添加英雄数量显示与上限控制逻辑
- 当英雄数量达到上限时禁止使用英雄卡牌
- 英雄死亡时减少当前英雄计数并刷新显示
- 添加英雄数量变化的动画反馈效果
- 移除 SingletonModuleComp 中未使用的 unlockCoin 字段

assets/script/game/map/CardComp.ts

@@ -6,6 +6,8 @@ import { CardConfig, CardType, SpecialCardList } from "../common/config/CardSet"
 import { CardUseComp } from "./CardUseComp";
 import { HeroInfo } from "../common/config/heroSet";
 import { SkillSet } from "../common/config/SkillSet";
+import { GameEvent } from "../common/config/GameEvent";
+import { oops } from "db://oops-framework/core/Oops";
 
 
 
@@ -159,6 +161,19 @@ export class CardComp extends CCComp {
 
     useCard(): CardConfig | null {
         if (!this.cardData || this.isUsing) return null;
+        if (this.cardData.type === CardType.Hero) {
+            const guard = {
+                cancel: false,
+                reason: "",
+                uuid: this.cardData.uuid,
+                hero_lv: this.cardData.hero_lv
+            };
+            oops.message.dispatchEvent(GameEvent.UseHeroCard, guard);
+            if (guard.cancel) {
+                this.playReboundAnim();
+                return null;
+            }
+        }
         this.isUsing = true;
         const used = this.cardData;
         mLogger.log(this.debugMode, "CardComp", "use card", {