Potential fix for code scanning alert no. 8: Information exposure thr…

…ough an exception

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

services/web/src/main.py

@@ -326,8 +326,8 @@ def abort_chat():
             session_manager.abort_chat(session_id)
             return jsonify({"status": "success", "message": "Chat aborted"})
         except Exception as e:
-            logger.error(f"Error aborting chat: {str(e)}")
-            return jsonify({"error": str(e)}), 500
+            logger.error(f"Error aborting chat: {str(e)}", exc_info=True)
+            return jsonify({"error": "An internal error has occurred"}), 500
 
     @app.route("/")
     def index():