How do I ensure that the artifact details are not included in the project tracker email notifications?

You can achieve this by disabling the 'Detailed Email' option in the "Project default configuration" page under the Administration tab. Once this setting is disabled, the email notification will include only the details about the attributes that are set as identifiers along with the artifact ID. This will make sure that only users with Project Tracker - Query permission will be able to view the rest of the details.