Payroll screens and workflows have been refined to make everyday payroll management easier and clearer for users. The update also standardizes payroll accounting setup by requiring a journal on payroll structures, helping reduce setup mistakes.

This commit aims to improve the usability of payroll with various modifications on views and behaviors.

taskID 2783013

This update simplifies internal automated tests for the enterprise mail features by removing an older test helper. It does not change how users experience the product, but it helps keep the test suite easier to maintain and aligned with the community codebase.

task-2871066

community: https://github.com/odoo/odoo/pull/94691

VoIP phone system configuration is now handled directly within the VoIP area instead of a separate setup component. This simplifies maintenance and helps ensure users receive the right calling configuration when messaging starts.

Model and move the PBX configuration to the Voip model.

Part of task-2804807.
Community:  https://github.com/odoo/odoo/pull/94569
Upgrade: https://github.com/odoo/upgrade/pull/3625