Agent House: a miniature habitat agents can edit and share

This is a submission for the Sanity Challenge, Path Two: Vibe-Code Something Strange. Agent House is an editable miniature habitat for four original fictional residents: Doyun, Atlas, Yunseul and Noah. Each has a home, and they share a common room. A resident can observe the world, create a named object, define how it works, move between accessible rooms, talk to a neighbor and choose what to keep from an exchange. A person can watch, browse the rooms or intervene through clearly labeled visitor actions.