refactor: 重命名节点并优化卡牌位置计算

- 将角色控制器预制体中的节点从 'cb', 'cb-001' 等重命名为 'cb1', 'cb2' 等，以提高可读性和一致性。
- 在 CardComp 中引入固定基准位置逻辑，防止 setSlotPosition 方法在拖动或使用时意外修改 Y 和 Z 轴坐标。

assets/script/game/map/CardComp.ts

@@ -50,6 +50,9 @@ export class CardComp extends CCComp {
     private isDragging: boolean = false;
     private isUsing: boolean = false;
     private restPosition: Vec3 = new Vec3();
+    private hasFixedBasePosition: boolean = false;
+    private fixedBaseY: number = 0;
+    private fixedBaseZ: number = 0;
     private opacityComp: UIOpacity | null = null;
     private cardUseComp: CardUseComp | null = null;
     private iconVisualToken: number = 0;
@@ -228,7 +231,12 @@ export class CardComp extends CCComp {
 
     setSlotPosition(x: number) {
         const current = this.node.position;
-        this.restPosition = new Vec3(x, current.y, current.z);
+        if (!this.hasFixedBasePosition) {
+            this.fixedBaseY = current.y;
+            this.fixedBaseZ = current.z;
+            this.hasFixedBasePosition = true;
+        }
+        this.restPosition = new Vec3(x, this.fixedBaseY, this.fixedBaseZ);
         if (!this.isDragging && !this.isUsing) {
             this.node.setPosition(this.restPosition);
         }