createServer's modelRegistry is optional and, when absent, the /api/models endpoint returns an
empty list — so after connecting a provider (e.g. Anthropic) the onboarding model picker showed
"no models". The desktop wired authStorage but no ModelRegistry.
Add a shared createFusionModelRegistry(authStorage) factory to @fusion/engine (which already depends
on @earendil-works/pi-coding-agent) so non-CLI hosts don't need that dep directly, and pass its
result as modelRegistry from both desktop server paths. Verified against a clean embedded server:
/api/models now returns 24 Claude models instead of an empty list.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
776df1ac25