feat: implement gasless transaction support

AndroidDemo/app/src/main/java/io/ton/walletkit/demo/core/WalletKitDemoApp.kt

@@ -131,7 +131,7 @@ class WalletKitDemoApp :
                 return
             }
 
-            val existingAddresses = kit.getWallets().mapNotNull { it.address?.value }.toMutableSet()
+            val existingAddresses = kit.getWallets().mapNotNull { it.address().value }.toMutableSet()
             Log.d(TAG, "Loading ${storedWallets.size} stored wallets into SDK")
 
             for ((address, walletRecord) in storedWallets) {
@@ -320,7 +320,7 @@ object TONWalletKitHelper {
                                 apiKey = tonCenterApiKey,
                             ),
                         )
-                        kit.streaming().register(streamingProvider)
+                        kit.streaming().registerProvider(streamingProvider)
                     } catch (e: Exception) {
                         Log.e("WalletKitDemoApp", "Streaming init ERROR network=${network.chainId} - ${e.message}", e)
                     }

AndroidDemo/app/src/main/java/io/ton/walletkit/demo/presentation/actions/WalletActions.kt

@@ -30,6 +30,7 @@ import io.ton.walletkit.demo.presentation.model.SignDataRequestUi
 import io.ton.walletkit.demo.presentation.model.SignMessageRequestUi
 import io.ton.walletkit.demo.presentation.model.TransactionRequestUi
 import io.ton.walletkit.demo.presentation.model.WalletSummary
+import io.ton.walletkit.demo.presentation.viewmodel.SendCurrency
 
 /**
  * Interface defining all wallet-related actions.
@@ -69,7 +70,14 @@ interface WalletActions {
     fun onRejectSignMessage(request: SignMessageRequestUi)
     fun onConfirmSignerApproval()
     fun onCancelSignerApproval()
-    fun onSendTransaction(walletAddress: String, recipient: String, amount: String, comment: String)
+    fun onSendTransaction(
+        walletAddress: String,
+        recipient: String,
+        amount: String,
+        comment: String,
+        currency: SendCurrency,
+        gasless: Boolean,
+    )
     fun onRefreshTransactions(address: String)
     fun onTransactionClick(transactionHash: String, walletAddress: String)
     fun onHandleUrl(url: String)

AndroidDemo/app/src/main/java/io/ton/walletkit/demo/presentation/actions/WalletActionsImpl.kt

@@ -30,6 +30,7 @@ import io.ton.walletkit.demo.presentation.model.SignDataRequestUi
 import io.ton.walletkit.demo.presentation.model.SignMessageRequestUi
 import io.ton.walletkit.demo.presentation.model.TransactionRequestUi
 import io.ton.walletkit.demo.presentation.model.WalletSummary
+import io.ton.walletkit.demo.presentation.viewmodel.SendCurrency
 import io.ton.walletkit.demo.presentation.viewmodel.WalletKitViewModel
 import javax.inject.Inject
 
@@ -111,7 +112,9 @@ class WalletActionsImpl @Inject constructor(
         recipient: String,
         amount: String,
         comment: String,
-    ) = viewModel.sendLocalTransaction(walletAddress, recipient, amount, comment)
+        currency: SendCurrency,
+        gasless: Boolean,
+    ) = viewModel.sendLocalTransaction(walletAddress, recipient, amount, comment, currency, gasless)
 
     override fun onRefreshTransactions(address: String) = viewModel.refreshTransactions(address)
 

AndroidDemo/app/src/main/java/io/ton/walletkit/demo/presentation/ui/screen/LegacyWalletScreen.kt

@@ -215,8 +215,8 @@ fun LegacyWalletScreen(
                 is SheetState.SendTransaction -> SendTransactionScreen(
                     wallet = sheet.wallet,
                     onBack = actions::onDismissSheet,
-                    onSend = { recipient, amount, comment ->
-                        actions.onSendTransaction(sheet.wallet.address, recipient, amount, comment)
+                    onSend = { recipient, amount, comment, currency, gasless ->
+                        actions.onSendTransaction(sheet.wallet.address, recipient, amount, comment, currency, gasless)
                     },
                     error = state.error,
                     isLoading = state.isSendingTransaction,

AndroidDemo/app/src/main/java/io/ton/walletkit/demo/presentation/ui/screen/NFTDetailsScreen.kt

@@ -89,7 +89,7 @@ fun NFTDetailsScreen(
 
     LaunchedEffect(walletAddress) {
         isLoadingWallet = true
-        wallet = walletKit.getWallets().firstOrNull { it.address?.value == walletAddress }
+        wallet = walletKit.getWallets().firstOrNull { it.address().value == walletAddress }
         isLoadingWallet = false
     }