player 데이터 싱글톤 구조로 변경

Gameton-06/Assets/Gameton/Scripts/Common/PlayerDataManager.cs

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+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+namespace TON
+{
+    public class PlayerDataManager : SingletonBase<PlayerDataManager>
+    {
+        // 사용자가 생성해둔 플레이어 데이터를 싱글톤으로 전역 사용하기 위함
+        public List<PlayerData> players { get; private set; }
+
+        protected override void Awake()
+        {
+            base.Awake();
+            LoadPlayerData();
+        }
+
+        private void LoadPlayerData()
+        {
+            players = JSONLoader.LoadFromResources<List<PlayerData>>("Player");
+            if (players == null)
+            {
+                players = new List<PlayerData>();
+                Debug.LogError("⚠️ Player data loading failed. Check if 'Player.json' exists in Resources folder.");
+            }
+        }
+    }
+}

Gameton-06/Assets/Gameton/Scripts/Common/PlayerDataManager.cs.meta

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