Reviewer role and audit trail

This week adds clearer reviewer access and audit history for teams that separate editing, reviewing, and approval.

+Improvements

• Workspace & adminReview & approvalsBetter Email now includes a dedicated reviewer role for email workspaces, making it easier to invite teammates who should review without needing full editing access.
• Review & approvalsWorkspace & adminReview and approval events now appear in the audit log, so admins can see when important workflow changes happened.

✓Fixes

• Campaign EditorDragging modules now respects the template's content zones, preventing drops into unsupported areas.