Glass Box — Experience
unified DMT trip arc · 7 stages · single dmt_level

1..7 jump stage · W/S dmt_level ±
R reset · Esc pause

LEFT half — hold to walk · RIGHT half — drag to look

V0 scaffold (Phase A). Each stage renders a placeholder colour + alive-pulse + top-edge stage indicator bar so the dispatcher is verifiable before pouring real visual content in. Phase B+ ports the existing chrysanthemum / antechamber / bedroom kernels and fills the missing stages.