49: Migrate position decrease alarm to high-level operation

src/main/tjava/com/r35157/jupiterperpsalarm/impl/ref/JupiterPerpsPositionDecreaseAlarmAction.tjava

@@ -5,8 +5,6 @@ import com.r35157.cryptowallet.solana.impl.ref.SolanaWalletImpl;
 import com.r35157.libs.jupiter.perps.JupiterPerpsPosition;
 import com.r35157.libs.jupiter.perps.JupiterPerpsService;
 import com.r35157.libs.solana.SolanaBlockChain;
-import com.r35157.libs.solana.SolanaSignedTransaction;
-import com.r35157.libs.solana.SolanaUnsignedTransaction;
 
 import java.io.IOException;
 import java.math.BigDecimal;
@@ -73,8 +71,9 @@ public final class JupiterPerpsPositionDecreaseAlarmAction
                 return;
             }
 
-            SolanaUnsignedTransaction utrans =
-                    jupiter.buildPositionDecreaseTransaction(
+            ΩSolanaTransactionSignatureΩ signature =
+                    jupiter.executePositionDecrease(
+                            wallet,
                             position.positionAccount(),
                             positionDecrease.receiveToken()
                                     .receiveTokenMint(),
@@ -82,12 +81,6 @@ public final class JupiterPerpsPositionDecreaseAlarmAction
                             positionDecrease.maxSlippageBps()
                     );
 
-            SolanaSignedTransaction strans =
-                    wallet.signTransaction(utrans);
-
-            ΩSolanaTransactionSignatureΩ signature =
-                    jupiter.executePositionDecreaseTransaction(strans);
-
             System.out.println(
                     "Position Decrease Signature: " + signature
             );