- ServerSetting: default is_traffic_analytics_enabled to false on the
model, so a new instance does not show null before a refresh.
- Update navbar, mobile menu, and proxy button tests to the current
redesigned UI (split action menus, settings rail, neutral icons).
- Traffic nudge test: set server_role to mark a build server, the same
as the product code.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>