Layered structure + physical properties; rename to Intelligent Home Care Living Lab

Add commercial licensing contact email

Rename display title -> Room 305 Digital Twin

Set license CC BY-NC 4.0; add citation

Add dataset card for NYCU lights twin

Replace with NYCU lights twin (collider + lights usdz); drop indoor_panorama project

Correct README: self-contained, accurate lighting note

Link lab GitHub (HCIS-Lab) in README

Add dataset card / README