refactor(map): 移除冗余的卡池等级节点并重构显示逻辑

1.  删除HInfoComp和CardLiteComp中不再使用的pool_lv相关节点字段
2.  将卡池等级背景色显示逻辑迁移到HerosListComp中统一处理
3.  简化CardLiteComp的节点初始化隐藏逻辑

assets/script/game/map/HerosListComp.ts

@@ -24,6 +24,7 @@ import { oops } from "db://oops-framework/core/Oops";
 import { mLogger } from "../common/Logger";
 import { HeroInfo, HeroList } from "../common/config/heroSet";
 import { buildSkillDesc } from "../common/config/HeroSkillDesc";
+import { CKind } from "../common/config/CardSet";
 import { CardLiteComp } from "./CardLiteComp";
 
 const { property, ccclass } = _decorator;
@@ -45,6 +46,10 @@ export class HerosListComp extends CCComp {
     @property(Node)
     cd_node = null!
 
+    /** 卡牌背景底框节点（按卡池等级切换子节点显示） */
+    @property(Node)
+    BG_node=null!
+    
     @property(Node)
     info_node = null!
 
@@ -199,11 +204,32 @@ export class HerosListComp extends CCComp {
             if (infoLabel) infoLabel.string = desc || hero.info || ""
         }
 
+        this.updatePoolLvBg(hero.pool_lv ?? 1)
         this.updateLvDisplay(hero)
         this.updateTypeDisplay(hero)
         this.updateHeroAnimation(uuid)
     }
 
+    private updatePoolLvBg(poolLv: number) {
+        if (!this.BG_node) return
+        const poolColorNames = ["green", "blue", "purple", "yellow", "red"];
+        const poolColorIdx = Math.min(poolLv, 5) - 1;
+        const activeColor = poolColorNames[poolColorIdx];
+        const kindName = CKind[CKind.Hero];
+        this.BG_node.children.forEach(child => {
+            child.active = (child.name === kindName);
+            if (child.active) {
+                child.children.forEach(colorChild => {
+                    colorChild.active = (colorChild.name === activeColor);
+                });
+            } else {
+                child.children.forEach(colorChild => {
+                    colorChild.active = false;
+                });
+            }
+        });
+    }
+
     private updateCdDisplay(hero: typeof HeroInfo[number]) {
         if (!this.cd_node) return
         const skillKeys = Object.keys(hero.skills)