Improve balance verification in LamassuTransactionProcessor: Added rounding to two decimal places for balance and fiat amounts to ensure precision in comparisons. Enhanced logging for insufficient balance scenarios, improving clarity in transaction processing and error reporting.

transaction_processor.py

@@ -849,10 +849,13 @@ class LamassuTransactionProcessor:
                         logger.error(f"CRITICAL: Client {client_id[:8]}... has negative balance ({current_balance.remaining_balance:.2f} GTQ) - REFUSING payment of {distribution['sats_amount']} sats")
                         continue
                     
-                    # Verify balance is sufficient for this distribution
+                    # Verify balance is sufficient for this distribution (round to 2 decimal places to match DECIMAL(10,2) precision)
                     fiat_equivalent = distribution["fiat_amount"]  # Amount in GTQ
-                    if current_balance.remaining_balance < fiat_equivalent:
-                        logger.error(f"CRITICAL: Client {client_id[:8]}... insufficient balance ({current_balance.remaining_balance:.2f} < {fiat_equivalent:.2f} GTQ) - REFUSING payment")
+                    # Round both values to 2 decimal places to match database precision and avoid floating point comparison issues
+                    balance_rounded = round(current_balance.remaining_balance, 2)
+                    amount_rounded = round(fiat_equivalent, 2)
+                    if balance_rounded < amount_rounded:
+                        logger.error(f"CRITICAL: Client {client_id[:8]}... insufficient balance ({balance_rounded:.2f} < {amount_rounded:.2f} GTQ) - REFUSING payment")
                         continue
                     
                     logger.info(f"Client {client_id[:8]}... pre-payment balance check: {current_balance.remaining_balance:.2f} GTQ - SUFFICIENT for {fiat_equivalent:.2f} GTQ payment")