This update standardizes how several enterprise modules describe the data they send to the mail interface, making future changes safer and easier to maintain. It also fixes an issue where one AI prompt setting was sent under the wrong name and therefore was not used by the client.

Enterprise counterpart of "[REF] mail, *: declare the store fields a payload fills", which explains the why and the placement rule.

This also fixes are_prompt_from_local_storage, sent under a name the client never reads, so the value landed nowhere.

https://github.com/odoo/odoo/pull/279131

The Point of Sale routing layer was reworked to use the newer plugin approach across several related POS modules. This is an internal modernization that helps keep POS screens, appointments, IoT, restaurant, settlement, and delivery integrations compatible with the latest frontend framework.

Convert router service owl2 to owl3 plugin.