This merge lands v0.12.0 with two major features: a droid-cli provider integration adding auth routes, status endpoints, and a settings toggle hook for controlling CLI-based authentication, plus a new experimental agent onboarding modal with a create-agent form. The release also stabilizes engine st
Fusion-Task-Id: FN-2981
Adds a new Droid CLI provider card to the onboarding flow, including a dedicated provider icon, simplified card CSS, and token fallback fixes for droid provider authentication. The changes wire the card into the ModelOnboardingModal and add test coverage for the card component, icon, and onboarding
Fusion-Task-Id: FN-2980