fix next step in quote payments approved.

invoices/views.py

@@ -422,13 +422,29 @@ def quote_payment_step(request, instance_id, step_id):
                 step_instance.status = 'completed'
                 step_instance.completed_at = timezone.now()
                 step_instance.save()
-                # move to next step
-                redirect_url = 'processes:request_list'
+                
+                # Auto-complete next step if it exists
                 if next_step:
-                    instance.current_step = next_step
-                    instance.save()
-                    return redirect('processes:step_detail', instance_id=instance.id, step_id=next_step.id)
-                return redirect(redirect_url)
+                    next_step_instance, _ = StepInstance.objects.get_or_create(
+                        process_instance=instance,
+                        step=next_step,
+                        defaults={'status': 'in_progress'}
+                    )
+                    next_step_instance.status = 'completed'
+                    next_step_instance.completed_at = timezone.now()
+                    next_step_instance.save()
+                    
+                    # Move to the step after next
+                    step_after_next = instance.process.steps.filter(order__gt=next_step.order).first()
+                    if step_after_next:
+                        instance.current_step = step_after_next
+                        instance.save()
+                        return redirect('processes:step_detail', instance_id=instance.id, step_id=step_after_next.id)
+                    else:
+                        # No more steps, go to request list
+                        return redirect('processes:request_list')
+                
+                return redirect('processes:request_list')
             messages.success(request, 'تایید شما ثبت شد. منتظر تایید سایر نقش‌ها.')
             return redirect('invoices:quote_payment_step', instance_id=instance.id, step_id=step.id)