feat(卡牌): 调整战斗阶段卡牌逻辑与配置

- 战斗阶段不再隐藏卡牌面板，改为刷新为技能卡
- 移除特殊升级卡，统一刷新卡费用为1并调整权重
- 修复卡牌组件布局参数，确保战斗阶段显示正确

assets/script/game/map/MissionCardComp.ts

@@ -117,6 +117,9 @@ export class MissionCardComp extends CCComp {
     
     // ======================== 运行时状态 ========================
 
+    /** 当前是否为战斗阶段 */
+    private isBattlePhase: boolean = false;
+
     /** 预留图集缓存（后续接入按钮/卡面图标时复用） */
     private uiconsAtlas: SpriteAtlas | null = null;
     /** 四个槽位对应的 CardComp 控制器缓存（有序数组） */
@@ -191,6 +194,7 @@ export class MissionCardComp extends CCComp {
      *   6. 执行首次抽卡并分发到 4 个槽位。
      */
     onMissionStart() {
+        this.isBattlePhase = false;
         this.enterPreparePhase();
         this.poolLv = CARD_POOL_INIT_LEVEL;
         const missionData = this.getMissionData();
@@ -297,9 +301,13 @@ export class MissionCardComp extends CCComp {
         this.playCoinChangeAnim(v > 0);
     }
 
-    /** 战斗开始：收起卡牌面板 */
+    /** 战斗开始：不收起面板，而是刷新为战斗阶段卡牌 */
     private onFightStart() {
+        this.isBattlePhase = true;
         this.enterBattlePhase();
+        this.layoutCardSlots();
+        const cards = this.buildDrawCards();
+        this.dispatchCardsToSlots(cards);
     }
 
     /**
@@ -331,6 +339,7 @@ export class MissionCardComp extends CCComp {
 
     /** 新一波：展开面板 → 刷新费用 UI → 重新抽卡分发 */
     private onNewWave() {
+        this.isBattlePhase = false;
         this.enterPreparePhase();
         this.updateCoinAndCostUI();
         this.layoutCardSlots();
@@ -605,22 +614,25 @@ export class MissionCardComp extends CCComp {
         this.cards_node.active = true;
         Tween.stopAllByTarget(this.cards_node);
         this.cards_node.setScale(this.cardsShowScale);
-        tween(this.cards_node)
-            .to(this.cardsPanelMoveDuration, {
-                scale: this.cardsHideScale
-            })
-            .start();
+        // 取消战斗阶段隐藏面板的逻辑
     }
 
     /** 构建本次抽卡结果，保证最终可分发4条数据 */
     private buildDrawCards(): CardConfig[] {
-        const cards = getCardsByLv(this.poolLv);
+        let targetType: CardType | CardType[] | undefined = undefined;
+        if (this.isBattlePhase) {
+            targetType = CardType.Skill;
+        } else {
+            targetType = [CardType.Hero, CardType.SpecialRefresh];
+        }
+        const cards = getCardsByLv(this.poolLv, targetType);
+        
         /** 正常情况下直接取前4 */
         if (cards.length >= 4) return cards.slice(0, 4);
         /** 兜底：当返回不足4张时循环补齐，保证分发不缺位 */
         const filled = [...cards];
         while (filled.length < 4) {
-            const fallback = getCardsByLv(this.poolLv);
+            const fallback = getCardsByLv(this.poolLv, targetType);
             if (fallback.length === 0) break;
             filled.push(fallback[filled.length % fallback.length]);
         }