diff --git a/apps/web/tests/assembled-boot.ts b/apps/web/tests/assembled-boot.ts
index eb22d8319c..dfda1040a6 100644
--- a/apps/web/tests/assembled-boot.ts
+++ b/apps/web/tests/assembled-boot.ts
@@ -20,9 +20,13 @@ const PLUGINS: readonly (WebBootEntry & { bundlePath: string })[] = [
   { id: '@deepseek-ai/dsh-client-connection', bundlePath: 'packages/client/connection/lib/client.js', url: '/plugins/connection.js', rev: 'fx', inject: [], immediately: true },
   { id: '@deepseek-ai/dsh-api-gateway', bundlePath: 'packages/api/gateway/lib/client.js', url: '/plugins/api-gateway.js', rev: 'fx', inject: ['@deepseek-ai/dsh-typert-registry', '@deepseek-ai/dsh-client-connection'], immediately: true },
   { id: '@deepseek-ai/dsh-api-remotes', bundlePath: 'packages/api/remotes/lib/client.js', url: '/plugins/api-remotes.js', rev: 'fx', inject: ['@deepseek-ai/dsh-api-gateway'], immediately: true },
-  { id: '@deepseek-ai/dsh-client-runtime', bundlePath: 'packages/client/runtime/lib/client.js', url: '/plugins/runtime.js', rev: 'fx', inject: ['@deepseek-ai/dsh-client-connection', '@deepseek-ai/dsh-typert-registry'], immediately: true },
-  { id: '@deepseek-ai/dsh-client-ui-theme', bundlePath: 'packages/client/ui-theme/lib/client.js', url: '/plugins/ui-theme.js', rev: 'fx', inject: [], immediately: true },
-  { id: '@deepseek-ai/dsh-client-locale', bundlePath: 'packages/client/locale/lib/client.js', url: '/plugins/locale.js', rev: 'fx', inject: [], immediately: true },
+  // The settings domain base: the only provider of ctx.settingsScope, which the
+  // locale and ui-theme rows below inject for their preference rows. Without it
+  // both stay pending and ui-layout never activates, so nothing renders.
+  { id: '@deepseek-ai/dsh-client-ui-settings', bundlePath: 'packages/client/ui-settings/lib/client.js', url: '/plugins/ui-settings.js', rev: 'fx', inject: ['@deepseek-ai/dsh-client-connection', '@deepseek-ai/dsh-client-runtime', '@deepseek-ai/dsh-api-remotes'], immediately: true },
+  { id: '@deepseek-ai/dsh-client-runtime', bundlePath: 'packages/client/runtime/lib/client.js', url: '/plugins/runtime.js', rev: 'fx', inject: ['@deepseek-ai/dsh-client-connection', '@deepseek-ai/dsh-typert-registry', '@deepseek-ai/dsh-api-gateway'], immediately: true },
+  { id: '@deepseek-ai/dsh-client-ui-theme', bundlePath: 'packages/client/ui-theme/lib/client.js', url: '/plugins/ui-theme.js', rev: 'fx', inject: ['@deepseek-ai/dsh-client-connection', '@deepseek-ai/dsh-client-runtime', '@deepseek-ai/dsh-client-locale', '@deepseek-ai/dsh-client-ui-settings', '@deepseek-ai/dsh-api-remotes'], immediately: true },
+  { id: '@deepseek-ai/dsh-client-locale', bundlePath: 'packages/client/locale/lib/client.js', url: '/plugins/locale.js', rev: 'fx', inject: ['@deepseek-ai/dsh-client-connection', '@deepseek-ai/dsh-client-runtime', '@deepseek-ai/dsh-client-ui-settings', '@deepseek-ai/dsh-api-remotes'], immediately: true },
   { id: '@deepseek-ai/dsh-client-ui-layout', bundlePath: 'packages/client/ui-layout/lib/client.js', url: '/plugins/ui-layout.js', rev: 'fx', inject: ['@deepseek-ai/dsh-client-runtime'] },
   { id: '@deepseek-ai/dsh-client-ui-sidebar', bundlePath: 'packages/client/ui-sidebar/lib/client.js', url: '/plugins/ui-sidebar.js', rev: 'fx', inject: ['@deepseek-ai/dsh-client-ui-layout'] },
   { id: '@deepseek-ai/dsh-client-ui-conversation', bundlePath: 'packages/client/ui-conversation/lib/client.js', url: '/plugins/ui-conversation.js', rev: 'fx', inject: ['@deepseek-ai/dsh-client-ui-layout'] },