Potential fix for code scanning alert no. 8: Information exposure through an exception

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

Author: GitTimeraider

app/main.py

@@ -234,8 +234,7 @@ def delete_forwarder():
             print(f"Error deleting forwarder: {str(e)}")
             traceback.print_exc()
             return jsonify({
-                'error': 'Failed to delete forwarder',
-                'details': str(e)
+                'error': 'Failed to delete forwarder'
             }), 500
 
     # ===== Error Handlers =====