Include source with item event descriptions when present

[ccutrer]

Example log lines in events.log:

2025-10-17 11:20:41.052 [INFO ] [openhab.event.ItemCommandEvent      ] - Item 'TestSwitch1' received command ON (source: org.openhab.core.io.console$openhab)
2025-10-17 11:28:59.527 [INFO ] [openhab.event.ItemCommandEvent      ] - Item 'TestSwitch1' received command OFF (source: org.openhab.io.homekit$15680270-F69A-C8A8-863A-2B6697D83A35)

[rkoshak]

That looks good and is easy to read. Thank you for addressing my request.

This raises a question. Does autoupdate add itself to the chain? When enabled it becomes a source for updates/changes to the Item in response to the command. Knowing that could be useful I would think.

[ccutrer]

autoupdate already sets its source to org.openhab.core.thing.autoupdate.

Do you think I should change that to org.openhab.core.thing$autoupdate (it technically comes from within the org.openhab.core.thing bundle, so treat AutoUpdateManager as the actor)?

And second, do you think AutoUpdateManager should append to the existing source, so that you'll see the source for the command that triggered the autoupdate? I'll admit I'm having a hard time deciding at which points the source should "reset" and which points it should append. I worry that once we have source getting set in commands from rules, and if that does appending from whatever triggered the rule, the source string could get surprisingly long. Especially if a rule accidentally triggers itself (but maybe that presents an opportunity for the framework to automatically prevent that?).