Rename transaction amount error code for consistency

Replaced ERRCode.TRANSACTIONAMOUNT with ERRCode.MISMATCH_TRANSACTION_AMT to improve naming consistency and clarity in error handling for mismatched transaction amounts.

aconnect/src/main/java/com/mfsys/aconnect/client/exception/MismatchTransactionAmtException.java

@@ -5,6 +5,6 @@ import com.mfsys.common.configuration.exception.ApplicationException;
 
 public class MismatchTransactionAmtException extends ApplicationException {
     public MismatchTransactionAmtException(String porOrgacode) {
-        super(porOrgacode, ERRCode.MISSING_TRX_AMOUNT);
+        super(porOrgacode, ERRCode.MISMATCH_TRANSACTION_AMT);
     }
 }

common/src/main/java/com/mfsys/common/configuration/constant/ERRCode.java

@@ -9,7 +9,7 @@ public enum ERRCode implements ErrorMessage {
     INVALID_CREDENTIALS("ERR_SEC_0004", "Invalid credentials"),
     USER_NOT_FOUND("ERR_SEC_0005", "User not found"),
     WRONG_PASSWORD("ERR_SEC_0006", "Incorrect password"),
-    TRANSACTIONAMOUNT("ERR_TRX_0001","Credit and Debit amounts must be equal"),
+    MISMATCH_TRANSACTION_AMT("ERR_TRX_0001","Credit and Debit amounts must be equal"),
     INVALID_TRANSACTIONAMOUNT("ERR_TRX_0002","Credit and Debit amounts must be greater than 0"),
     MISSING_TRX_AMOUNT("ERR_TRX_0003","Credit and Debit amounts are required"),
     MISSING_GL_CODE("ERR_GL_0001","Credit and Debit GL codes are required"),