Supplement on E_build for SPV_ Thermodynamic Relocation of Construction Cost

This supplement relocates construction cost E_build in SPV theory as prepaid negentropy. To evaluate building decisions without dimensional contradictions, we define Structural Leverage L = (I·T)/(E_subsequent·E_build) (bit·s/J²). High‑E_build structures incur structural information debt (lock‑in, crowding‑out, replication barriers), driving thermodynamic zombification and steep extinction when niches collapse. E_build is positioned as the initial boundary condition of the SPV integral form, achieving full theoretical self‑consistency. All metrics are descriptive and forbidden for social ranking.