fix loan

app/api/services/loan_service.py

@@ -1,12 +1,13 @@
 import logging
 from datetime import datetime
 from flask import jsonify
+from app.models.loan import Loan
 
 # Configure logging
 logger = logging.getLogger(__name__)
 
 
-class Loan:  # Mock Loan class for demonstration
+class LoanDelete:  # Mock Loan class for demonstration
     def __init__(self, id, customer_id, account_id, offer_id, initial_loan_amount, current_loan_amount, status,
                  product_id, default_penalty_fee, continuous_fee, due_date, created_at, updated_at):
         self.id = id