added repayment_schedule

app/models/loan.py

@@ -310,7 +310,7 @@ class Loan(db.Model):
 
             if not loan:
                 raise ValueError(f"Loan with ID {loan_id} does not exist.")
-
+           
             # Convert to Decimal and round to 2 decimal places
             amount_collected = Decimal(str(amount_collected)).quantize(Decimal("0.01"), rounding=ROUND_HALF_UP)
             balance = Decimal(str(loan.balance or 0)).quantize(Decimal("0.01"), rounding=ROUND_HALF_UP)
@@ -321,7 +321,12 @@ class Loan(db.Model):
             if balance <= Decimal("0.00"):
                 raise ValueError("There is no balance for this loan.")
             if amount_collected > balance:
-                raise ValueError("Repayment amount exceeds current loan balance.")
+                # allow tiny rounding diff
+                if abs(amount_collected - balance) <= Decimal("0.01"):
+                    amount_collected = balance
+                else:
+                    raise ValueError("Repayment amount exceeds current loan balance.")
+
 
             # Deduct the amount from the current balance
             new_balance = balance - amount_collected