fixing and creatign mess

backend/igny8_core/business/billing/services/invoice_service.py

@@ -274,10 +274,21 @@ class InvoiceService:
         transaction_id: Optional[str] = None
     ) -> Invoice:
         """
-        Mark invoice as paid
+        Mark invoice as paid and record payment details
+        
+        Args:
+            invoice: Invoice to mark as paid
+            payment_method: Payment method used ('stripe', 'paypal', 'bank_transfer', etc.)
+            transaction_id: External transaction ID (Stripe payment intent, PayPal capture ID, etc.)
         """
         invoice.status = 'paid'
         invoice.paid_at = timezone.now()
+        invoice.payment_method = payment_method
+        
+        # For Stripe payments, store the transaction ID in stripe_invoice_id field
+        if payment_method == 'stripe' and transaction_id:
+            invoice.stripe_invoice_id = transaction_id
+        
         invoice.save()
         
         return invoice

backend/igny8_core/business/billing/services/payment_service.py

@@ -105,11 +105,15 @@ class PaymentService:
     ) -> Payment:
         """
         Mark payment as completed and update invoice
+        For automatic payments (Stripe/PayPal), sets approved_at but leaves approved_by as None
         """
         from .invoice_service import InvoiceService
         
         payment.status = 'succeeded'
         payment.processed_at = timezone.now()
+        # For automatic payments, set approved_at to indicate when payment was verified
+        # approved_by stays None to indicate it was automated, not manual approval
+        payment.approved_at = timezone.now()
         
         if transaction_id:
             payment.transaction_reference = transaction_id