Add new config variables to README

Co-authored-by: AI (copilot/full)

Author: timopollmeier

README.md

@@ -62,6 +62,8 @@ working directory. Environment variables override the built-in defaults.
 | `GREENBONE_WAS_SCAN_WORKER_COUNT`                | `1`                                      | Maximum number of concurrently running scan workers. The value must be greater than `0`.                                                                                                     |
 | `GREENBONE_WAS_SCAN_ALERT_POLL_INTERVAL_SECONDS` | `10`                                     | Interval, in seconds, between ZAP alert polling attempts during active scans. The value must be greater than `0`.                                                                            |
 | `GREENBONE_WAS_SCAN_STOP_GRACE_PERIOD_SECONDS`   | `300`                                    | Grace period, in seconds, to wait for a running scan to stop before forcing it to failed. The value must be greater than `0`.                                                                |
+| `GREENBONE_WAS_SCAN_AJAX_SPIDER_TIMEOUT_GRACE_PERIOD_SECONDS` | `60`                           | Grace period, in seconds, added to the scan-level `ajax_spider_timeout` preference before sending a local AJAX spider stop request.                                                          |
+| `GREENBONE_WAS_SCAN_PHASE_STOP_STATUS_CHANGE_TIMEOUT_SECONDS` | `60`                           | Time limit, in seconds, for waiting on a scan phase status change after a local stop request; when exceeded, WAS logs a warning and continues to the next phase. The value must be greater than `0`. |
 | `GREENBONE_WAS_SCAN_RETRY_MAX_RETRIES`           | `10`                                     | Maximum number of retry attempts for transient ZAP or storage failures.                                                                                                                      |
 | `GREENBONE_WAS_SCAN_RETRY_MAX_DELAY_SECONDS`     | `60`                                     | Maximum backoff delay, in seconds, between retry attempts. The value must be greater than `0`.                                                                                               |