Documents the static slot-host rendering contract in `docs/PLUGIN_AUTHORING.md`, clarifying how plugins should interact with the rendering system.
Fusion-Task-Id: FN-3260
- Introduce a new "project-setup" onboarding step between GitHub and first-task actions
- Gate first-task navigation on project selection and add contextual setup-wizard guidance
- Centralize ordered onboarding step definitions in shared state and reuse them for navigation/progress labels
- Extract ModelOnboardingModal styles into a dedicated component CSS file and update tests/mocks for the new step order
- Add a PostOnboardingRecommendations component that detects incomplete AI provider, default model, and GitHub setup and offers direct actions
- Persist post-onboarding dismissal state in model-onboarding-state with new helpers for dismiss, check, and clear flows
- Integrate recommendations into App rendering so they appear after completed onboarding when resume onboarding is not active
- Add dashboard styles and focused tests for recommendation rendering/actions plus onboarding dismissal state coverage
- Add a changeset for @gsxdsm/fusion patch release describing the post-onboarding recommendations
