Create fraud_detection.py

src/payment/fraud_detection.py

@@ -0,0 +1,13 @@
+class FraudDetection:
+    def __init__(self):
+        self.transaction_history = []
+
+    def log_transaction(self, payment):
+        self.transaction_history.append(payment)
+
+    def detect_fraud(self, payment):
+        # Simple fraud detection logic based on transaction patterns
+        if payment.amount > 10000:  # Example threshold
+            print(f"Fraud alert! High transaction amount detected: {payment.amount} from {payment.payer}.")
+            return True
+        return False