ui: revert to head-selector mode

ui: drop head selector, switch to universal mode + domain badges

security: XSS hardening + image preprocessor

sync: parser robustness + tightened scene prompt + friendly errors

ui: redesign output for non-technical users — KPI strip + action cards

ui: drop show_download_button kwarg (not in gradio 6.13)

ui: scene mode — bbox overlays + multi-detection cards

ui: remove Demo mode toggle — single live path only

ui: pipeline trace UI + verifier panel + insights banner

ui: retheme via Gradio CSS variables — coherent contrast on every component

ui: bump text contrast — readable ink on dark panels, fix Gradio info/placeholder text

ui: comprehensive dark sustainability theme — panels, inputs, code, markdown tables

inject CSS via inline <style> so it survives Spaces auto-launch

gradio 6.0: move css/theme to launch(), disable experimental SSR

Matter - initial gradio space