Industrial Harbor card on the same live three.js viewer as the other cases

Four more Image-to-Scene cases: Suburban Umbrella Pair, Rosie's Service Bin, Rosie's Roadside Billboard, Suburban Driveway Mailbox

Feature GPT-6 Astra's Industrial Harbor in the Text-to-Scene cases

Text-to-Scene / Image-to-Scene tabs in every section; restore the Image-to-Scene task, views, cases, takeaways and models

Text-to-Scene only: drop the Image-to-Scene task, views, cases, takeaways and models; v31 teaser

Code4Scene project page: leaderboard, takeaways, cases in 3D