Interactive demo supporting 2D points, bounding boxes, trajectories, grasp
points, instrument readings, and free-form spatial reasoning. API key can be
provided via UI textbox or GEMINI_API_KEY env var (Space Secret); the server
never echoes the env key back to the browser.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
