客户端rsa，冗余清理，bug修复，安卓build问题

Assets/scripts/_runtimecache/PlayerEconomyStorage.cs

@@ -11,6 +11,7 @@ public static class PlayerEconomyStorage
     private const string MainFileName = ".eco.dat";
     private const string BackupFileName = ".eco.bak";
     private const string TempFileName = ".eco.tmp";
+    private const string RecoverySlotKey = "player_economy_storage";
 
     private static string VaultDirectoryPath
     {
@@ -53,9 +54,23 @@ public static class PlayerEconomyStorage
             return true;
         }
 
+        if (LocalRecoveryMirror.TryLoadJson(RecoverySlotKey, out payload) && payload != null)
+        {
+            TrySave(payload);
+            return true;
+        }
+
         return false;
     }
 
+    public static bool HasAnyRecoverableState()
+    {
+        return HasAnyVaultFile(MainFileName)
+            || HasAnyVaultFile(BackupFileName)
+            || PlayerProgressBackupService.HasEconomyBackup()
+            || LocalRecoveryMirror.HasSlotData(RecoverySlotKey);
+    }
+
     public static bool TrySave(PlayerEconomyPayload payload)
     {
         try
@@ -77,6 +92,7 @@ public static class PlayerEconomyStorage
             TryHidePath(MainFilePath);
             File.Delete(TempFilePath);
             PlayerProgressBackupService.SaveEconomy(payload);
+            LocalRecoveryMirror.SaveJson(RecoverySlotKey, payload);
             return true;
         }
         catch (Exception ex)
@@ -170,6 +186,20 @@ public static class PlayerEconomyStorage
         return false;
     }
 
+    private static bool HasAnyVaultFile(string fileName)
+    {
+        var candidates = SaveIdentityUtility.GetVaultFilePathVariants(fileName);
+        for (int i = 0; i < candidates.Count; i++)
+        {
+            if (File.Exists(candidates[i]))
+            {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
     private static string BuildEnvelopeJson(PlayerEconomyPayload payload)
     {
         payload.lastUpdatedUtcTicks = DateTime.UtcNow.Ticks;