docs: add the demo video link (README + the app's Watch-the-demo button)

popup: teach how to use (gestures + live-mode voice command) in text and narration

fix: popup empty on cold load — lazy-load gradio client so UI never waits on the CDN

feat: welcome popup on every open (reads pitch aloud, voice/tap close, video link)

ui: brand mark = minimal line eye (option 2); remove preview page

ui: add the iris brand mark (idle identity)

live mode: in-browser object-detection gate + browser-language onboarding

tests, inference trace, English-only repo, testability refactor

Iris: hands-free live mode, money/bill reading, accessible UI, Qwen3-VL-2B

Iris: voice-first assistant for the blind (gr.Server + Qwen2.5-VL + Whisper + Piper)