Appointment managers can now access availability information directly from the kanban view even when an appointment type is not published. This makes it easier to review and manage appointment options before making them visible on the website.

When website is installed, provide quick access to appointment availabilities
from kanban even for unpublished ones.

Task-2816507

The mail app’s attachment preview tests were cleaned up by removing a simulated model that was no longer needed. This makes the test suite simpler and easier to maintain, helping reduce future maintenance risk without changing user-facing behavior.

task-2792108

This update adjusts the way test data is prepared for several communication-related apps, helping automated checks better reflect expected behavior. It supports more reliable validation for approvals, email collaboration, VoIP, and live chat helpdesk features without changing the user experience.

task-2792108

The update avoids saving default visitor session data when it is not needed, using direct location information instead. This helps reduce unnecessary stored data while keeping appointment and document signing flows working as expected.

See commit with same title in community.

`request.session.geoip` -> `request.geoip`

Companion of odoo/odoo#86015