Merge branch 'stack/agent-profiles-5-web-ui' into stack/agent-profiles-8-authoring

# Conflicts:
#	apps/cli/tests/web-agent-presets.e2e.ts
#	packages/client/connection/README.i18n.yaml
#	packages/client/connection/README.md
#	packages/client/connection/README.zh.md
#	packages/client/ui-conversation/src/client/contract/slots.ts
#	packages/client/ui-primitives/tests/icons.spec.tsx
#	packages/client/ui-settings/src/client/contract/slots.ts
#	packages/host/apiproxy/tests/api-proxy-agent-preset.spec.ts

packages/client/ui-settings/src/client/contract/slots.ts

@@ -62,7 +62,7 @@ declare module '@deepseek-ai/dsh-client-ui-slots' {
      * OnboardingSurface primitive (mask, opaque stage, `#root` inert) and
      * renders null while its private facts are still loading — the shell
      * paints no chrome of its own, so a mounted-but-deciding step shows and
-     * blocks nothing (the reload white-flash fix; a bare unwrapped step
+     * blocks nothing (prevents a white flash on reload: a bare unwrapped step
      * would render without mask or stage).
      */
     'settings.onboarding': { kind: 'list'; scope: 'root'; owner: SettingsOnboardingOwnerProps }