End of the manual session re-seed

The integration worked with a session that expired. When it expired, syncing stopped and it had to be regenerated by hand. In practice that means the failure turned up on the busiest day and got fixed when somebody noticed.

Now the session regenerates itself. And the worker recycles preventively every few hours rather than waiting to hang, because the kind of process that does this hangs: better to restart it when nothing is happening than to discover it when something is.

It is not a feature you can show in a demo. It is the difference between an integration that works and one that worked.