Add smart wallet upgrade option to PlaygroundManager

Introduces the AlwaysUpgradeToSmartWallet flag to PlaygroundManager, allowing automatic upgrade of connected wallets to smart wallets with sponsored gas. Updates the scene and connection methods to support this option. Also improves PersonalSign handling in ReownWallet to support hex-encoded messages.

Author: 0xFirekeeper

Assets/Thirdweb/Examples/Scenes/Scene_Playground.unity

@@ -1961,6 +1961,7 @@ MonoBehaviour:
   m_Script: {fileID: 11500000, guid: f139d8153587c1d46aaf3b6bf05d2c25, type: 3}
   m_Name: 
   m_EditorClassIdentifier: Thirdweb.Examples::ThirdwebPlayground
+  AlwaysUpgradeToSmartWallet: 1
   ChainId: 421614
   Email: 
   Phone: 

Assets/Thirdweb/Examples/Scripts/PlaygroundManager.cs

@@ -16,6 +16,7 @@ public class PlaygroundManager : MonoBehaviour
     {
         #region Inspector
 
+        public bool AlwaysUpgradeToSmartWallet;
         public ulong ChainId;
         public string Email;
         public string Phone;
@@ -111,7 +112,7 @@ private async void Wallet_Guest()
             );
 
             var smartWalletAddress = await smartWallet.GetAddress();
-            this.LogPlayground($"[Guest] Connected to smart wallet (sponsored gas):\n{smartWalletAddress}");
+            this.LogPlayground($"[Guest] Connected to wallet (sponsored gas):\n{smartWalletAddress}");
 
             // // --Smart wallets have special functionality other than just gas sponsorship
             // var sessionKeyReceipt = await smartWallet.CreateSessionKey(
@@ -131,6 +132,10 @@ private async void Wallet_Social()
         {
             var walletOptions = new WalletOptions(provider: WalletProvider.InAppWallet, chainId: this.ChainId, new InAppWalletOptions(authprovider: AuthProvider.Github));
             var wallet = await ThirdwebManager.Instance.ConnectWallet(walletOptions);
+            if (this.AlwaysUpgradeToSmartWallet)
+            {
+                wallet = await ThirdwebManager.Instance.UpgradeToSmartWallet(wallet, chainId: this.ChainId, smartWalletOptions: new SmartWalletOptions(sponsorGas: true));
+            }
             var address = await wallet.GetAddress();
             this.LogPlayground($"[Social] Connected to wallet:\n{address}");
         }
@@ -145,6 +150,10 @@ private async void Wallet_Email()
 
             var walletOptions = new WalletOptions(provider: WalletProvider.InAppWallet, chainId: this.ChainId, new InAppWalletOptions(email: this.Email));
             var wallet = await ThirdwebManager.Instance.ConnectWallet(walletOptions);
+            if (this.AlwaysUpgradeToSmartWallet)
+            {
+                wallet = await ThirdwebManager.Instance.UpgradeToSmartWallet(wallet, chainId: this.ChainId, smartWalletOptions: new SmartWalletOptions(sponsorGas: true));
+            }
             var address = await wallet.GetAddress();
             this.LogPlayground($"[Email] Connected to wallet:\n{address}");
         }
@@ -159,6 +168,10 @@ private async void Wallet_Phone()
 
             var walletOptions = new WalletOptions(provider: WalletProvider.InAppWallet, chainId: this.ChainId, new InAppWalletOptions(phoneNumber: this.Phone));
             var wallet = await ThirdwebManager.Instance.ConnectWallet(walletOptions);
+            if (this.AlwaysUpgradeToSmartWallet)
+            {
+                wallet = await ThirdwebManager.Instance.UpgradeToSmartWallet(wallet, chainId: this.ChainId, smartWalletOptions: new SmartWalletOptions(sponsorGas: true));
+            }
             var address = await wallet.GetAddress();
             this.LogPlayground($"[Phone] Connected to wallet:\n{address}");
         }
@@ -171,6 +184,10 @@ private async void Wallet_External()
                 reownOptions: new ReownOptions(projectId: null, name: null, description: null, url: null, iconUrl: null, includedWalletIds: null, excludedWalletIds: null)
             );
             var wallet = await ThirdwebManager.Instance.ConnectWallet(walletOptions);
+            if (this.AlwaysUpgradeToSmartWallet)
+            {
+                wallet = await ThirdwebManager.Instance.UpgradeToSmartWallet(wallet, chainId: this.ChainId, smartWalletOptions: new SmartWalletOptions(sponsorGas: true));
+            }
             var address = await wallet.GetAddress();
             this.LogPlayground($"[SIWE] Connected to wallet:\n{address}");
         }

Assets/Thirdweb/Runtime/Unity/Wallets/Reown/ReownWallet.cs

@@ -149,10 +149,13 @@ public async Task<string> PersonalSign(byte[] rawMessage)
             return await AppKit.Evm.SignMessageAsync(rawMessage);
         }
 
-        public Task<string> PersonalSign(string message)
+        public async Task<string> PersonalSign(string message)
         {
-            var rawMessage = System.Text.Encoding.UTF8.GetBytes(message);
-            return this.PersonalSign(rawMessage);
+            if (message.StartsWith("0x"))
+            {
+                return await this.PersonalSign(message.HexToBytes());
+            }
+            return await AppKit.Evm.SignMessageAsync(message);
         }
 
         public Task<string> RecoverAddressFromPersonalSign(string message, string signature)