客户端rsa，冗余清理，bug修复，安卓build问题

Assets/playerDisplay/UI_Player.cs

@@ -1,7 +1,9 @@
 using System;
 using System.Collections;
 using System.Collections.Generic;
+#if UNITY_STANDALONE_WIN || UNITY_STANDALONE_LINUX || UNITY_STANDALONE_OSX || STEAMWORKS_WIN || STEAMWORKS_LIN_OSX
 using Steamworks;
+#endif
 using UnityEngine;
 using UnityEngine.UI;
 
@@ -591,6 +593,11 @@ public class UI_Player : MonoBehaviour
 
     private IEnumerator LoadSteamProfileAsync(bool isSteamOnline)
     {
+#if !(UNITY_STANDALONE_WIN || UNITY_STANDALONE_LINUX || UNITY_STANDALONE_OSX || STEAMWORKS_WIN || STEAMWORKS_LIN_OSX)
+        // 非 Steam 平台（如 Android）：无 Steam 资料，直接显示不可用。
+        ApplySteamUnavailable();
+        yield break;
+#else
         int initRetry = 0;
         while (initRetry < 25 && !SteamManager.Initialized)
         {
@@ -617,6 +624,7 @@ public class UI_Player : MonoBehaviour
         }
 
         ApplySteamUnavailable();
+#endif
     }
 
     private void ApplySteamUnavailable()
@@ -640,6 +648,9 @@ public class UI_Player : MonoBehaviour
 
     private static bool IsSteamOnline()
     {
+#if !(UNITY_STANDALONE_WIN || UNITY_STANDALONE_LINUX || UNITY_STANDALONE_OSX || STEAMWORKS_WIN || STEAMWORKS_LIN_OSX)
+        return false;
+#else
         if (!SteamManager.Initialized)
         {
             return false;
@@ -653,8 +664,10 @@ public class UI_Player : MonoBehaviour
         {
             return false;
         }
+#endif
     }
 
+#if UNITY_STANDALONE_WIN || UNITY_STANDALONE_LINUX || UNITY_STANDALONE_OSX || STEAMWORKS_WIN || STEAMWORKS_LIN_OSX
     private bool TryPopulateSteamProfile(bool isSteamOnline)
     {
         try
@@ -746,6 +759,7 @@ public class UI_Player : MonoBehaviour
 
         return true;
     }
+#endif
 
     private struct UserInfoSnapshot
     {