Fix code scanning alert no. 9: Information exposure through an exception

Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>

server/apps/research/admin/article_admin.py

@@ -54,7 +54,9 @@ def generate_summary_view(self, request):
                 gpt_summary = asyncio.run(self._generate_summary(content))
                 return JsonResponse({'summary': gpt_summary})
             except Exception as e:
-                return JsonResponse({'error': str(e)}, status=500)
+                import logging
+                logging.error("An error occurred while generating the summary", exc_info=True)
+                return JsonResponse({'error': 'An internal error has occurred!'}, status=500)
         return JsonResponse({'error': 'Invalid request method'}, status=400)
 
     def current_slug_history(self, obj):