The way conversation threads are calculated in the chatter has been refactored. This helps keep message history organized more reliably and prepares the feature for smoother future improvements.

This change updates how certain background services are started so they begin automatically when the app is created. It simplifies startup and reduces the risk of services being initialized too late, improving reliability for affected areas.

This commit introduces a new plugin which starts the legacy services.
Before this plugin, we needed to start the services after the app creation
but now, this is done during the creation.

This change updates a small set of interface templates to use the newer Owl data-binding syntax. It helps keep the product compatible with the latest framework version and reduces maintenance risk, without changing business behavior.

* = ['event_iot']

As part of the migration from `owl 2` to `owl 3`, this commit replaces uses of `t-custom-model` with `t-model` or `t-model.proxy`.