Replace the in-test /object_info interception with a real devtools node
that declares a non-black COLOR default, matching how legacy widget,
remote widget, and other widget e2e tests already exercise their
features.
Also drop the explanatory comment in useColorWidget.ts per review
feedback; the fallback chain is self-evident at the point of use.
## Summary
Merges ComfyUI devtools components into the ComfyUI frontend monorepo to
consolidate development tools.
## Changes
- Added devtools components from ComfyUI repository
- Integrated development nodes and utilities
- Consolidated fake model assets for testing
## Related Issues
Fixes#4683
## Testing
- Devtools components are now available within the frontend monorepo
- Development workflow remains consistent
Co-authored-by: Claude <noreply@anthropic.com>