ui: revert to head-selector mode

fix: move runtime init lock to module level (ZeroGPU pickling)

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

sync: matter cache + breaker, runtime threading lock

security: XSS hardening + image preprocessor

sync: parser robustness + tightened scene prompt + friendly errors

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

sync: matter co2e enrichment (engine populates value.environmental)

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

runtime name: 'other' to satisfy Passport provenance enum

gemma-4: add torchvision dep, use parse_response per official docs

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

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

requirements: drop gradio/torch pins (let HF resolve via sdk_version + py3.13)

Matter - initial gradio space

initial commit