Potential fix for code scanning alert no. 2: 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

@@ -135,7 +135,6 @@ def get_forwarders():
             traceback.print_exc()
             return jsonify({
                 'error': 'Failed to fetch forwarders',
-                'details': str(e),
                 'forwarders': []
             }), 500