fix(server): type the provider session test settings layer

ServerSettings.layerTest carries the settings-normalization error
channel, but the makeTestLayer slot requires error never, failing
typecheck. The error cannot occur for a literal override, so orDie it.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
47cc6166b5Wout Stiens committed on 9/1/2026, 5:43:06 AMparent18c3349
1 file changedLine totals unavailable