- Click+drag on gizmo arrows to translate selected actors along axis
- Drag plane computation based on axis direction and camera orientation
- Axis-constrained movement with initial transform preservation
- Hover highlighting: gizmo arrows turn yellow on mouse-over
- Sphere sweep for easier gizmo clicking (generous hit radius)
- UE editor-style gizmo colors (dark red/green/blue)
- Fixed gizmo visibility toggle (component-level instead of actor-level)
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>