The mail app's internal volume setting component was renamed to make it easier for developers to distinguish it from a similarly named server-side component. This reduces confusion during maintenance without changing how users experience the product.

Rename javascript model mail.volume_setting to VolumeSetting
in order to distinguish javascript model from python model.

Task-2701674

The mail app’s internal attachment naming was updated to avoid confusion between browser-side and server-side attachment records. This is a behind-the-scenes cleanup that helps developers maintain the feature more reliably without changing how users work with attachments.

Rename javascript model `mail.attachment` to `Attachment` in order to distinguish javascript model from python model.

Enterprise: https://github.com/odoo/enterprise/pull/22609
Part of task-2701674.

The mail enterprise code now uses a clearer name for its JavaScript attachment model, helping distinguish it from the server-side attachment model. This is an internal cleanup that reduces confusion for future maintenance without changing user-facing behavior.

Rename javascript model `mail.attachment` to `Attachment` in order to distinguish javascript model from python model.

Community: https://github.com/odoo/odoo/pull/80601
Part of task-2701674.