Purpose
=======
Currently, only email sending can be scheduled with the `scheduled_date` field
defined on on <mail.mail>. It's not possible to delay the sending of
notifications.
We want to be able to delay the sending of the emails, but also the inbox
and bus bus notifications.
Technical
=========
For that purpose, we created a new model which stores the message we need to
notify with the scheduled date. When a scheduled_datetime is given we skip the
notification process. Instead an entry in that new model is created. A cron
regularly polls the scheduled message and launch the notification process on
messages that are ready to be sent.
Task-2207626 (Rating: Delay rating notification to ease feedback)
Part-of: odoo/odoo#95623
Co-authored-by: Thibault Delavallée <tde@odoo.com>
