Persistent keepalive and listen port are not surfaced in stats on macos

[t-aleksander]

select * from  location_stats order by id desc;
+-------+-------------+---------+-----------+----------------+----------------------------+-------------+-------------------------------+
| id    | location_id | upload  | download  | last_handshake | collected_at               | listen_port | persistent_keepalive_interval |
+-------+-------------+---------+-----------+----------------+----------------------------+-------------+-------------------------------+
| 97640 | 3           | 3788    | 7545      | 1782143060     | 2026-06-22 15:46:19.852847 | 0           | <null>                        |
| 97639 | 3           | 3788    | 7545      | 1782143060     | 2026-06-22 15:46:09.849103 | 0           | <null>                        |
| 97638 | 3           | 3788    | 7545      | 1782143060     | 2026-06-22 15:45:59.850417 | 0           | <null>                        |
| 97637 | 3           | 3788    | 7545      | 1782143060     | 2026-06-22 15:45:49.847826 | 0           | <null>                        |
| 97636 | 3           | 3672    | 7397      | 1782143060     | 2026-06-22 15:45:39.847735 | 0           | <null>                        |
| 97635 | 3           | 3672    | 7397      | 1782143060     | 2026-06-22 15:45:29.849417 | 0           | <null>                        |
| 97634 | 3           | 3672    | 7397      | 1782143060     | 2026-06-22 15:45:19.849735 | 0           | <null>                        |
| 97633 | 3           | 3672    | 7397      | 1782143060     | 2026-06-22 15:45:09.849156 | 0           | <null>                        |
| 97632 | 3           | 3672    | 7397      | 1782143060     | 2026-06-22 15:44:59.849036 | 0           | <null>                        |
| 97631 | 3           | 3412    | 7037      | 1782143060     | 2026-06-22 15:44:49.848993 | 0           | <null>                        |

Hint: Keepalive can be taken from settings.

Check how to get listening port in VPNExtension and inform the main app about it.