Select menu search fields now use Odoo's standard focus behavior when the menu opens. This keeps the user experience the same while simplifying maintenance and reducing the chance of future inconsistencies.

This commit makes use of the useAutoFocus hook to focus the input when the SelectMenu opens. This usage of the hook can replace the manual focus that was applied when the dropdown opened.

The feature can hardly be tested with newer tests, since the behavior is identical, and the focus on the input was already tested.

This update adds missing internal type information in the mail module. It helps developers maintain the messaging code more reliably without changing what users see.

The Knowledge app now restores standard validation checks for its form views after previously incompatible directives were removed. This helps catch invalid view definitions earlier, reducing the risk of future display or stability issues for users.

Now that the forbidden `t-` owl directives have been removed from the arch of the form view of Knowledge, we will re-enable the default arch view validator. That way, we will be able to detect usage of forbidden directives, attributes, etc and prevent potential issues.

Follow up of task: 3094058

task-3385229

The signing flow updates the wording shown for recipients when sending signature requests. This makes the message clearer for users preparing documents and helps reduce confusion for recipients.

task-id: 3284359